pcn letter automotive tvs diodes production transfer sma ... · we ask that you communicate your...
TRANSCRIPT
8755 W. Higgins Road Suite 500 Chicago, Illinois USA 60631
March 27, 2018
RE: PCN Production Transfer for Acquired ON Semiconductor Automotive TVS Diodes SMA (DO-214AC) and SMC (DO-214AB)
To our valued customers,
On August 29, 2016, Littelfuse completed the acquisition of select ON Semiconductor product lines. The acquired product lines included TVS Diodes, Thyristors, and IGBT’s for ignition applications as well as all relevant intellectual property. It’s our pleasure to announce that Littelfuse has successfully qualified the SMA (DO-214AC) and SMC (DO-214AB) automotive grade TVS Diode products (with part number starting with SZ or SC prefix), Qualification reports and part number lists are attached as appendices. To ensure a smooth transition to serve our customers better, we ask that you contact your local Littelfuse sales teams with any specific questions or requests within 180 days or before September 26, 2018 at the latest. Littefluse will start to produce SMA (DO-214AC) and SMC (DO-214AB) automotive grade TVS Diode products (with part number starting with SZ or SC prefix) in our Wuxi, China manufacturing site starting October 1, 2018. During the production transition period we will ship from both the current ON Semiconductor Seremban site and the Littelfuse Wuxi China site. Littelfuse will provide customer specific cutover date codes based on each individual customer’s approval process and the Littelfuse production conversion timeline. For the customers who have already engaged with Littelfuse to recieve validation samples and manage internal testing, Littelfuse will keep providing our support and service for customer qualifications until the final approvals is obtained. Qualification Plan and Part Number List Enclosed separately are the part numbers which are qualified in our Wuxi, China site, along with the qualification result.
Project Milestones
Date Milestone
2/27/2017 SAP Go live: ordering/shipment of ON Semiconductor part numbers through Littelfuse – Finished
5/30/2017 Clean Rooms and Facility Hook Up completed by Littelfuse – Finished
10/31/2017 FAB & ASSY Equipment and Process Qualification completed by Littelfuse – Finished
3/26/2018 Internal Product Qualification Completed, Start Sampling and Initial Production from Littelfuse facilities SMA (DO‐214AC) and SMC (DO‐214AB) TVS products
10/01/2018 Initial Production from Littelfuse Wuxi site of SMA (DO‐214AC) and SMC (DO‐214AB) automotive grade TVS products and start the deliveries
12/31/2018 Last Order Date of ON Semiconductor part numbers from ON Semiconductor facilities for customers
6/30/2019 Automotive Customer Qualification Completed by Littelfuse
7/31/2019 Last Shipment Date of ON Semiconductor part numbers from ON Semiconductor facilities to customers
8/29/2019 Automotive TSA completed and Full Mass Production from Littelfuse Wuxi China
8755 W. Higgins Road Suite 500 Chicago, Illinois USA 60631
Product Discontinuity Littelfuse has obsoleted all commercial grade TVS Diodes (those PNs without the SZ/SC prefix) starting from December 31, 2017, and will obsolete SMA-FL (SZNS6A), and replace it with the TPSMA6L series starting December 31, 2018. Production Support and Last Time Buy from ON Semiconductor Seremban site ON Semiconductor will continue to manufacture and ship the automotive grade TVS Diodes (with part number starting with SZ or SC prefix) up to August 29, 2019 (or 3 years from acquisition date) to support those customers who require additional time to approve the Littelfuse made TVS Diodes. We ask that you communicate your approval requirements and timelines to your local Littelfuse sales representative as soon as possible if you have not done so already, and place your Last Time Buy orders before December 31, 2018 to ensure supply continuity. All new SMA (DO-214AC) and SMC (DO-214AB) automotive grade TVS Diode sample orders and requests will be fullfilled from our Wuxi manufacturing site starting today (March 27, 2018) Manufacturing Changes Although we are working with the ON Semiconductor team to duplicate their processes to the greatest extent possible, there are still some changes we would like to draw your attention to below.
Current Change to
Raw Silicon ON Semiconductor, 6 inches Littelfuse , 5 inches
Wafer Fab ON Semiconductor Littelfuse (Wuxi, China)
Backend
ON Semiconductor (DO‐214AA,SMB) Littelfuse (Wuxi, China)
ON Semiconductor (DO‐214AB,SMC) Littelfuse (Wuxi, China)
ON Semiconductor (DO‐214AC,SMA) Littelfuse (Wuxi, China)
ON Semiconductor (SOD‐123) Littelfuse (Wuxi, China)
ON Semiconductor (SMA‐FL) Obsolete SZNS6A and replace it with
Littelfuse TPSMA6L series
8755 W. Higgins Road Suite 500 Chicago, Illinois USA 60631
Meanwhile, Littelfuse will enhance the body marking and label specification for better traceability and service. Device Marking Change: following production transfer into our Wuxi, China site.
Note: Polarity band is only for uni-directional components. Current label format:
8755 W. Higgins Road Suite 500 Chicago, Illinois USA 60631
New label format: following production transfer into our Wuxi, China site.
8755 W. Higgins Road Suite 500 Chicago, Illinois USA 60631
With an intensive qualification, Littelfuse would further clarify the SMC (DO214‐AB) dimensions as below:
Both SMA (DO-214AC) and SMC (DO-214AB) qualification reports and datesheets are included with this PCN letter reflecting the improvements above. The new datasheets will be on the Littelfuse website once all the customer approvals are obtained. This PCN package is for your information and acknowledgement. If you require any specific data or product samples to certify this change, please contact Littelfuse as soon as possible. If you have any further questions or concerns, please contact your Littelfuse local sales representative. We value your business and look forward to assisting you whenever possible.
Best Regards, Charlie Cai Product Manager Automotive and Hi-Rel TVS
PCN Report
Page 1 of 5
Prepared By : Haipeng Xu, Senior Product Engineer Date : Mar 16th, 2018 Products : Automotive TVS in SMA package acquired from ON Semiconductor
Revision : A 1.0 Objective:
This report covers manufacturing size transfer activities of automotive TVS of SMA package acquired from ON Semiconductor. Site transfer includes fab manufacturing, backend assembly, final test and packaging operations.
2.0 Affected Devices:
Automotive TVS components acquired from ON Semiconductor in package of SMA. Please see the attached Appendix I for a full list of affected part numbers.
3.0 Physical Differences/Changes:
3.1 Marking diagram format change
Package ON Semi Marking [OLD] Littelfuse Marking [NEW] Modification Items
SMA
1.Add Littelfuse logo
2.Optimize trace code for
better traceability
3.Remove Pb‐free dot
4.Change polarity band quanity
from three to one
POLARITY INDICATOR OPTIOANL AS NEEDED
Page 2 of 5
3.2 Label format change
a. ON Semiconductor’s label [OLD]
b. Littelfuse’s label [NEW]
Page 3 of 5
4.0 Qualification Test Items and Result Summary:
Rev.A March 15, 2018
Item # Ref. Spec # Lots S.S.Result
Fail/Total1 Datasheet spec all all 0/all
2 JA113 27 80 0/2160
3 MIL750-2071 all all 0/all
4Individual AEC user specification
7 30 0/210
5MIL-STD-750-1 M1038 Method A
7 80 0/560
6 JA108
7 JA104 7 80 0/560
8 JA118 7 80 0/560
9 JA101 7 80 0/560
10MIL-STD-750Method 1037
6 80 0/480
11CDF-AEC Q101-001 & 002
7 90 0/630
12 AEC-Q101-004 3 2 0/613 JB-100 3 30 0/9014 MIL750-200615 JB-10716171819
20 JB-106-A 7 30 0/210
21 J-STD002 7 15 0/105
22JESD-24-3, 24-4, 24-6 as appropriate
3 15 0/45
23 MIL750, 20372425 MIL750, 2017
26CDF-AECQ101-004 Section 2
27CDF-AECQ101-004 Section 2
2829 Lead Free AEC-Q005
30Individual AEC user specification
7 15 0/105
31Individual AEC user specification
7 10 0/70
32Individual AEC user specification
7 30 0/210
33 JA103 7 80 0/560
Discrete Semiconductor Component Qualification ResultGeneral Specification: AEC-Q101 Rev DSupplier: Littelfuse. Inc
Supplier Manufacturing Site: Wuxi, Jiangsu, ChinaPackage Type: SMA
Requested PPAP submission date:TBD Family Type: ZenerReason for qual: Manufacturing site change for TVS acquired from ON Semi
Test Test Conditions Littelfsue Test Ref# Remarks
Pre- and Post-Stress Electrical Test Electrical Characterization @ 25°C Before and after all test
Pre-conditioning24hrs 125°C bake, 168hrs 85°C/85% humidity storage, 3 times Reflow
105536&105538&105552&105553&105806
Performed prior to UHAST, TC, IOL, H3TRB
External Visual Per AEC-Q101
Parametric VerificationElectrical Characterization @ -65°C, 25°C & 150°C
105539&105540&105807
High Temperature Reverse Bias Tj=150°C, 1,008hr, biased at VR 105536&105538&105806
High Temperature Gate Bias Per AEC-Q101 N/A
Temperature CyclingTA: -65°C to +150°C , dwell time >15mins, 1,000 cycle
105536&105538&105806
Unbiased Highly Accelerated Stress Test
96 hours at TA=130°C/85%RH. 105536&105538&105806
High Humidity High Temp. Reverse Bias
TA: 85°C, RH: 85%, 1000hr, Reverse biased at VR or max 100V
105536&105538&105806
Intermittent Operational LifeTA:25°C, ∆TJ≥ 100°C, TON/OFF: 2 minutes, 15,000cycles
105552&105553
ESD Characterization HBM:16KV,MM:1.6KV,IEC61000-4-2: 30KV 105536&105538&105806HBM :3BIEC−61000−4−2 ≥ 30KVMM : M4
Destructive Physical Analysis Per AEC-Q101 108906&109059&109060 Samples from passed H3TRB and TC Physical Dimension Per JEDECSOD123 package dimension 105539&105540&105807 Per Datasheet SpecTerminal Strength Per AEC-Q101 N/A Evaluate lead integrity of leaded parts onlyResistance to Solvents per AEC - Q101 N/A Laser markedConstant Acceleration N/A Not hermetic packaged devicesVibration Variable Frequency N/A Not hermetic packaged devicesMechanical Shock N/A Not hermetic packaged devicesHermeticity N/A Not hermetic packaged devices
Resistance to Solder Heat 260°C, 10 secs 105536&105538&105806
Solderability 245°C, 10 secs 105536&105538&105806
Thermal ResistanceTypical Thermal Resistance Junction to Lead
105554 Per Datasheet Spec
Dielectric Integrity Per AEC-Q101 N/A Power MOS & IGBT only
Short Circuit Reliability Per AEC-Q101 N/A For smart power parts only
Wire Bond Strength Per AEC-Q101 N/A wire bond onlyBond Shear N/A wire bond onlyDie Shear Per AEC-Q101 N/A wire bond only
High Temperature Storage Life TA=150°C, 1008hours 105536&105538&105806
All samples passed all requested test items by AEC-Q101 Rev.D successfully.
Supplier Generic P/N: SZ1SMAxxAT3G and SZ1SMAxxCAT3GSupplier Internal P/N: SZ1SMAxxAT3G and SZ1SMAxxCAT3G
Per AEC-Q101 N/A Will provide separate whisker report once
CapacitanceBias=1V,2V,5V, 10V,50%VR, 100%VR, 1MHZ,TJ = 25°C
105539&105540&105807
Surge Life(10*1000us) 10*1000us waveform,50hits 105539&105540&105807
Unclamped Inductive Switching Per AEC-Q101 N/A Power MOS & internally clamped IGBT only
Surge Out(10*1000)10*1000us waveform,25°C,85°C and 150°C
105539&105540&105807 each temp 10Pcs
5.0 Recommendations & Conclusions:
Page 4 of 5
Based on above qualification test results, Littelfuse judged that manufacturing site transfer activities of SMA package have been completed and TVS components in SMA package are successfully qualified by AEC-Q101 tests. Littelfuse released new manufacturing site to production for automotive TVS of SMA package.
6.0 Approvals:
Haipeng Xu Sewall Wang Senior Product Engineer Product Engineering Manager Littelfuse, Inc. Littelfuse,
Page 5 of 5
7.0 Appendix I – List of part numbers affected by this PCN report
SC1SMA12AT3G SZ1SMA10CAT3G
SZ1SMA10AT3G SZ1SMA12CAT3G
SZ1SMA11AT3G SZ1SMA13CAT3G
SZ1SMA12AT3G SZ1SMA15CAT3G
SZ1SMA13AT3G SZ1SMA16CAT3G
SZ1SMA14AT3G SZ1SMA18CAT3G
SZ1SMA15AT3G SZ1SMA20CAT3G
SZ1SMA16AT3G SZ1SMA24CAT3G
SZ1SMA17AT3G SZ1SMA26CAT3G
SZ1SMA18AT3G SZ1SMA28CAT3G
SZ1SMA20AT3G SZ1SMA30CAT3G
SZ1SMA22AT3G SZ1SMA33CAT3G
SZ1SMA24AT3G SZ1SMA36CAT3G
SZ1SMA26AT3G SZ1SMA40CAT3G
SZ1SMA28AT3G SZ1SMA48CAT3G
SZ1SMA30AT3G SZ1SMA58CAT3G
SZ1SMA33AT3G SZ1SMA60CAT3G
SZ1SMA36AT3G SZ1SMA70CAT3G
SZ1SMA40AT3G SZ1SMA78CAT3G
SZ1SMA43AT3G
SZ1SMA45AT3G
SZ1SMA48AT3G
SZ1SMA5.0AT3G
SZ1SMA54AT3G
SZ1SMA58AT3G
SZ1SMA6.0AT3G
SZ1SMA6.5AT3G
SZ1SMA70AT3G
SZ1SMA8.0AT3G
SZ1SMA8.5AT3G
SZ1SMA9.0AT3G
PCN Report
Page 1 of 6
Prepared By : Haipeng Xu, Senior Product Engineer Date : Mar 16th, 2018 Products : Automotive TVS in SMC package acquired from ON Semiconductor
Revision : A 1.0 Objective:
This report covers manufacturing size transfer activities of automotive TVS of SMC package acquired from ON Semiconductor. Site transfer includes fab manufacturing, backend assembly, final test and packaging operations.
2.0 Affected Devices:
Automotive TVS components acquired from ON Semiconductor in package of SMC. Please see the attached Appendix I for a full list of affected part numbers.
3.0 Physical Differences/Changes:
3.1 Marking diagram format change
Package ON Semi Marking [OLD] Littelfuse Marking [NEW] Modification Items
SMC
1.Add Littelfuse logo
2.Optimize trace code for
better traceability
3.Remove Pb‐free dot
4.Change polarity band quanity
from three to one
POLARITY INDICATOR OPTIOANL AS NEEDED
Page 2 of 6
3.2 Label format change
a. ON Semiconductor’s label [OLD]
b. Littelfuse’s label [NEW]
Page 3 of 6
4.0 Dimension specification changes: Slight changes have been proceeded for outline dimensions A, A1 and b and all new specifications are within JEDEC specifications. 4.1 Dimension A is changed from body height to total height to keep with JESDC standard.
4.2 DO214AB outline
--- Dimensions A, A1 and b are changed, other dimension specifications are no difference.
MIN NOM MAX MIN NOM MAX
A 1.90 2.13 2.41 2.00 2.22 2.41
A1 0.05 0.10 0.15 0.05 0.10 0.20
b 2.92 3.00 3.07 2.92 3.00 3.18
c 0.15 0.23 0.30 0.15 0.23 0.30
D 5.59 5.84 6.10 5.59 5.84 6.10
E 6.60 6.86 7.11 6.60 6.86 7.11
HE 7.75 7.94 8.13 7.75 7.94 8.13
L 0.76 1.02 1.27 0.76 1.02 1.27
L1
ON Semi(old)
DIM
Littelfuse(new)
MILLIMETERS
0.51 REF
MILLIMETERS
0.51 REF
Page 4 of 6
5.0 Qualification Test Items and Result Summary:
Rev.A March 15, 2018
Item # Ref. Spec # Lots S.S.Result
Fail/Total1 Datasheet spec all all 0/all
2 JA113 12 80 0/960
3 MIL750-2071 all all 0/all
4Individual AEC user specification
3 30 0/90
5MIL-STD-750-1 M1038 Method A
3 80 0/240
6 JA1087 JA104 3 80 0/240
8 JA118 3 80 0/240
9 JA101 3 80 0/240
10MIL-STD-750Method 1037
3 80 0/240
11CDF-AEC Q101-001 & 002
3 90 0/270
12 AEC-Q101-004 3 2 0/613 JB-100 3 30 0/9014 MIL750-200615 JB-1071617181920 JB-106-A 3 30 0/9021 J-STD002 3 15 0/45
22JESD-24-3, 24-4, 24-6 as appropriate
3 15 0/45
23 MIL750, 20372425 MIL750, 2017
26CDF-AECQ101-004 Section 2
27CDF-AECQ101-004 Section 2
2829 Lead Free AEC-Q005
30Individual AEC user specification
3 15 0/45
31Individual AEC user specification
3 10 0/30
32Individual AEC user specification
3 30 0/90
32 JA103 3 80 0/240
Discrete Semiconductor Component Qualification ResultGeneral Specification: AEC-Q101 Rev DSupplier: Littelfuse. IncSupplier Generic P/N: SZ1SMCxxAT3G and SZ1.5SMCxxAT3G Supplier Manufacturing Site: Wuxi, Jiangsu, ChinaSupplier Internal P/N: SZ1SMCxxAT3G and SZ1.5SMCxxAT3G Package Type: SMCRequested PPAP submission date:TBD Family Type: ZenerReason for qual: Manufacturing site change for TVS acquired from ON Semi
Test Test Conditions Littelfsue Test Ref# Remarks
Pre- and Post-Stress Electrical Test Electrical Characterization @ 25°C Before and after all test
Pre-conditioning24hrs 125°C bake, 168hrs 85°C/85% humidity storage, 3 times Reflow
105555&105557Performed prior to UHAST, TC, IOL, H3TRB
External Visual Per AEC-Q101
Parametric VerificationElectrical Characterization @ -65°C, 25°C & 150°C
105556
High Temperature Reverse Bias Tj=150°C, 1,008hr, biased at VR 105555
High Temperature Gate Bias Per AEC-Q101 N/ATemperature Cycling TA: -65°C to +150°C , dwell time >15mins, 105555
Unbiased Highly Accelerated Stress Test
96 hours at TA=130°C/85%RH. 105555
High Humidity High Temp. Reverse Bias
TA: 85°C, RH: 85%, 1000hr, Reverse biased at VR or max 100V
105555
Intermittent Operational LifeTA:25°C, ∆TJ≥ 100°C, TON/OFF: 2 minutes, 15,000cycles
105557
ESD Characterization HBM:16KV,MM:1.6KV,IEC61000-4-2: 30KV 105555HBM :3BIEC−61000−4−2 ≥ 30KVMM : M4
Destructive Physical Analysis Per AEC-Q101 107929&109062&109063 Samples from passed H3TRB and TC Physical Dimension Per JEDECSOD123 package dimension 105556 Per Datasheet SpecTerminal Strength Per AEC-Q101 N/A Evaluate lead integrity of leaded parts onlyResistance to Solvents per AEC - Q101 N/A Laser markedConstant Acceleration N/A Not hermetic packaged devicesVibration Variable Frequency N/A Not hermetic packaged devicesMechanical Shock N/A Not hermetic packaged devicesHermeticity N/A Not hermetic packaged devicesResistance to Solder Heat 260°C, 10 secs 105555Solderability 245°C, 10 secs 105555
Thermal ResistanceTypical Thermal Resistance Junction to Lead
105558 Per Datasheet Spec
Wire Bond Strength Per AEC-Q101 N/A wire bond onlyBond Shear N/A wire bond only
Per AEC-Q101 N/A wire bond only
Unclamped Inductive Switching Per AEC-Q101 N/A Power MOS & internally clamped IGBT only
Dielectric Integrity Per AEC-Q101 N/A Power MOS & IGBT only
Surge Life(10*1000us) 10*1000us waveform,50hits 105556
High Temperature Storage Life TA=150°C, 1008hours 105555
All samples passed all requested test items by AEC-Q101 Rev.D successfully.
Surge Out(10*1000)10*1000us waveform,25°C,85°C and 150°C
105556 each temp 10Pcs
Short Circuit Reliability Per AEC-Q101 N/A For smart power parts onlyPer AEC-Q101 N/A Will provide separate whisker report once
CapacitanceBias=1V,2V,5V, 10V,50%VR, 100%VR, 1MHZ,TJ = 25°C
105556
Die Shear
Page 5 of 6
6.0 Recommendations & Conclusions:
Based on above qualification test results, Littelfuse judged that manufacturing site transfer activities of SMC package have been completed and TVS components in SMC package are successfully qualified by AEC-Q101 tests. Littelfuse released new manufacturing site to production for automotive TVS of SMC package .
7.0 Approvals:
Haipeng Xu Sewall Wang Senior Product Engineer Product Engineering Manager Littelfuse, Inc. Littelfuse, Inc
8.0 Appendix I – List of part numbers affected by this PCN report
Page 6 of 6
SZ1SMC10AT3G SC1.5SMC62AT3G
SZ1SMC12AT3G SZ1.5SMC10AT3G
SZ1SMC13AT3G SZ1.5SMC12AT3G
SZ1SMC14AT3G SZ1.5SMC13AT3G
SZ1SMC15AT3G SZ1.5SMC15AT3G
SZ1SMC16AT3G SZ1.5SMC16AT3G
SZ1SMC17AT3G SZ1.5SMC18AT3G
SZ1SMC18AT3G SZ1.5SMC20AT3G
SZ1SMC20AT3G SZ1.5SMC22AT3G
SZ1SMC22AT3G SZ1.5SMC24AT3G
SZ1SMC24AT3G SZ1.5SMC27AT3G
SZ1SMC26AT3G SZ1.5SMC30AT3G
SZ1SMC28AT3G SZ1.5SMC33AT3G
SZ1SMC30AT3G SZ1.5SMC36AT3G
SZ1SMC33AT3G SZ1.5SMC39AT3G
SZ1SMC36AT3G SZ1.5SMC43AT3G
SZ1SMC40AT3G SZ1.5SMC47AT3G
SZ1SMC43AT3G SZ1.5SMC51AT3G
SZ1SMC48AT3G SZ1.5SMC56AT3G
SZ1SMC5.0AT3G SZ1.5SMC6.8AT3G
SZ1SMC51AT3G SZ1.5SMC62AT3G
SZ1SMC54AT3G SZ1.5SMC68AT3G
SZ1SMC58AT3G SZ1.5SMC7.5AT3G
SZ1SMC6.0AT3G SZ1.5SMC75AT3G
SZ1SMC6.5AT3G SZ1.5SMC82AT3G
SZ1SMC60AT3G SZ1.5SMC91AT3G
SZ1SMC64AT3G
SZ1SMC7.5AT3G
SZ1SMC70AT3G
SZ1SMC75AT3G
SZ1SMC78AT3G
SZ1SMC8.0AT3G
SZ1SMC9.0AT3G
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1.5SMC6.8AT3G
• Working Peak Reverse Voltage Range − 5.8 V to 77.8 V
• Standard Zener Breakdown Voltage Range −
6.8 V to 91V
• Peak Power − 1500 W @ 1 ms
• ESD Rating of Class 3 (> 16 KV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5 µA Above 10 V
• UL 497B for Isolated Loop Circuit Protection
• Maximum Temperature Coefficient Specified
• Response Time is Typically < 1 ns
• Pb−Free Packages are Available
• SZ Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements;
AEC−Q101 Qualified and PPAP CapableAEC−Q101
Qualified and PPAP Capable
Features
The SZ1.5SMC6.8AT3G series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SZ1.5SMC6.8AT3G series is supplied in the exclusive, cost-effective, highly reliable Littelfuse package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.
Description
Parameter Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL = 25°C, Pulse Width = 1 ms PPK 1500 W
DC Power Dissipation @ TL = 75°C Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction−to−Lead
PD
R JL
4.0
54.6
18.3
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ TA =
25°C Derate Above 25°C
Thermal Resistance from Junction–to– Ambient
PD
R0JA
0.75
6.1
165
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA
= 25°C IFSM 200 A
Operating and Storage Temperature Range TJ, Tstg
-65 to+150 °C
Maximum Ratings and Thermal Characteristics
SZ1.5SMC6.8AT3G
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
Pb
Additional Information
SamplesResourcesDatasheet
Bi-directional
Uni-directional
Cathode Anode
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
1. 10 x 1000 µs, non−repetitive.
2. 1 in square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403-03 case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1.5SMC6.8AT3G
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VC Clamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IR Maximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
IT Test Current
IF Forward Current
VF Forward Voltage @ IF
I-V Curve Characteristics (TA = 25°C unless otherwise noted, VF = 3.5 V Max @ IF = 100 A) (Note 5)
5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle.
V
I
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1.5SMC6.8AT3G
Electrical Characteristics (TA = 25°C unless otherwise noted)
Breakdown Voltage VC @ IPP (Note 8)
MV BR
Device* Device Marking
VRWM
(Note 6)
IR @ VRWM
VBR (V) (Note 7) @ IT VC IPP
Volts µA MIN NOM MAX mA Volts Amps %/ C
SZ1.5SMC6.8AT3G 6V8A 5.8 1000 6.45 6.8 7.14 10 10.5 143 0.057
SZ1.5SMC7.5AT3G 7V5A 6.4 500 7.13 7.5 7.88 10 11.3 132 0.061
SZ1.5SMC8.2AT3G 8V2A 7.02 200 7.79 8.2 8.61 10 12.1 124 0.065
SZ1.5SMC10AT3G 10A 8.55 10 9.5 10 10.5 1 14.5 103 0.073
SZ1.5SMC12AT3G 12A 10.2 5 11.4 12 12.6 1 16.7 90 0.078
SZ1.5SMC13AT3G 13A 11.1 5 12.4 13 13.7 1 18.2 82 0.081
SZ1.5SMC15AT3G 15A 12.8 5 14.3 15 15.8 1 21.2 71 0.084
SZ1.5SMC16AT3G 16A 13.6 5 15.2 16 16.8 1 22.5 67 0.086
SZ1.5SMC18AT3G 18A 15.3 5 17.1 18 18.9 1 25.2 59.5 0.088
SZ1.5SMC20AT3G 20A 17.1 5 19 20 21 1 27.7 54 0.09
SZ1.5SMC22AT3G 22A 18.8 5 20.9 22 23.1 1 30.6 49 0.092
SZ1.5SMC24AT3G 24A 20.5 5 22.8 24 25.2 1 33.2 45 0.094
SZ1.5SMC27AT3G 27A 23.1 5 25.7 27 28.4 1 37.5 40 0.096
SZ1.5SMC30AT3G 30A 25.6 5 28.5 30 31.5 1 41.4 36 0.097
SZ1.5SMC33AT3G 33A 28.2 5 31.4 33 34.7 1 45.7 33 0.098
SZ1.5SMC36AT3G 36A 30.8 5 34.2 36 37.8 1 49.9 30 0.099
SZ1.5SMC39AT3G 39A 33.3 5 37.1 39 41 1 53.9 28 0.1
SZ1.5SMC43AT3G 43A 36.8 5 40.9 43 45.2 1 59.3 25.3 0.101
SZ1.5SMC47AT3G 47A 40.2 5 44.7 47 49.4 1 64.8 23.2 0.101
SZ1.5SMC51AT3G 51A 43.6 5 48.5 51 53.6 1 70.1 21.4 0.102
SZ1.5SMC56AT3G 56A 47.8 5 53.2 56 58.8 1 77 19.5 0.103
SZ1.5SMC62AT3G 62A 53 5 58.9 62 65.1 1 85 17.7 0.104
SZ1.5SMC68AT3G 68A 58.1 5 64.6 68 71.4 1 92 16.3 0.104
SZ1.5SMC75AT3G 75A 64.1 5 71.3 75 78.8 1 103 14.6 0.105
SZ1.5SMC82AT3G 82A 70.1 5 77.9 82 86.1 1 113 13.3 0.105
SZ1.5SMC91AT3G 91A 77.8 5 86.5 91 95.5 1 125 12 0.106
6. A transient suppressor is normally selected according to the maximum working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous
peak operating voltage level.
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 1500 Watt at the beginning of this group.
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1.5SMC6.8AT3G
Figure 1. Pulse Rating Curve
Ratings and Characteristic Curves
Figure 2. Pulse Waveform
120
100
80
60
40
20
00 40 80 120 160 200
°
PEA
K PU
LSE
DER
ATIN
G IN
% O
FPE
AK
CU
RREN
T
Figure 3. Pulse Derating Curve Figure 4. Dynamic Impedance
NONREPETITIVEPULSE WAVEFORMSHOWN IN FIGURE 2
t
1
10
100
0.1 s1 s1 0 s 100 s 1 ms 10 ms0.1 0
50
100
VALU
E (%
)
HALF VALUE - IPP2
PEAK VALUE - IPP
t 10 s
tP
PULSE WIDTH (tP) IS DEFINED ASTHAT POINT WHERE THE PEAKCURRENT DECAYS TO 50% OFIPP.
≤
10X1000 WAVEFORM
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1.5SMC6.8AT3G
Dimensions
NOTES
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P.
4. 403-01 THRU -02 OBSOLETE, NEW STANDARD 403-03.
Soldering Footrpint
Physical Specifications
CaseVoid-free, transfer-molded, thermosetting plastic
Polarity Cathode indicated by polarity band
Mounting Position Any
FinishAll external surfaces are corrosion resistant and leads are readily solderable
LeadsModified L−Bend providing more contact area to bond pads
ORDERING INFORMATION
Device Package Shipping†
SZ1.5SMCxxAT3G SMC(Pb−Free)
2,500 /Tape & Reel
DimInches Millimeters
Min Nom Max Min Nom Max
A 0.079 0.087 0.095 2.00 2.22 2.41
A1 0.002 0.004 0.008 0.05 0.10 0.20
b 0.115 0.118 0.125 2.92 3.00 3.18
c 0.006 0.009 0.012 0.15 0.23 0.30
D 0.220 0.230 0.240 5.59 5.84 6.10
E 0.260 0.270 0.280 6.60 6.86 7.11
HE 0.305 0.313 0.320 7.75 7.94 8.13
L 0.030 0.040 0.050 0.76 1.02 1.27
L1 0.020 REF 0.51 REF
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 260OC
Dipping Time : 10 seconds
mminches
A
L L1 c A1
Part Marking System
LFXXXX
YMAWW
(Polarity Indicator for Uni-directional Only)
xxxx = Device Code (Max four digits)
= Year = Month = Assembly Location
= Lot Code
YMAWWWW
(Polarity Indicator for Uni-directional Only)
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
• Working Peak Reverse Voltage Range −5V to 78V forunidirectional and 10 V to 78 V for bidirectional
• Standard Zener Breakdown Voltage Range −
11.7 V to 91.3 V for bidirectional, 6.7 V to 91.25 V forunidirectional
• Peak Power − 400 W @ 1 ms
• ESD Rating of Class 3 (> 16 kV) per Human Body Model
• Response Time is Typically < 1 ns
• Flat Handling Surface for Accurate Placement
• Package Design for Top Slide or Bottom Circuit
Board Mounting
• Low Profile Package
• Pb-free means 2nd level interconnect is Pb-free and the
terminal finish material is tin(Sn)
(IPC/JEDEC J-STD-609A.01)
• SZ Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements;
AEC−Q101 Qualified and PPAP Capable
Features
The SZ1SMA series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SZ1SMA series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.
Description
Parameter Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL = 25°C, Pulse Width = 1 ms PPK 400 W
DC Power Dissipation @ TL = 75°C Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction−to−Lead
PD
R JL
1.5
20
50
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ TA =
25°C Derate Above 25°C
Thermal Resistance from Junction–to– Ambient
PD
R0JA
0.5
4.0
250
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA = 25°C (for uni-directional)
IFSM 40 A
Operating and Storage Temperature Range TJ, Tstg
-65 to+150 °C
Maximum Ratings and Thermal Characteristics
SZ1SMA Series Pb
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.
1. 10 X 1000 µs, non−repetitive.
2. 1” square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403D-02case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. (for uni-directional)
Additional Information
SamplesResourcesDatasheet
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VC Clamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IR Maximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
IT Test Current
I-V Curve Characteristics (TA = 25°C unless otherwise noted) – For Bidirectional
IPP
IPP
IRIT
ITIRVRWMVC VBRVRWM VCVBR
Functional Diagram
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VC Clamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IR Maximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
IT Test Current
IF Forward Current
VF Forward Voltage @ IF
IPP
IF
V
I
IRIT
VRWMVC VBRVF
I-V Curve Characteristics (TA = 25°C unless otherwise noted, VF = 3.5 V Max. @ IF = 30 A for all types) (Note 5) – For Unidirectional
5. 1/2 sine wave or equivalent, PW = 8.3 ms, non−repetitive duty cycle.
For Unidirectional
For Bidirectional
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Electrical Characteristics - For Bidirectional
Breakdown VoltageVC @ IPP
(Note 8)
Device* Device Marking
VRWM
(Note 6)
IR @ VRWM
VBR @ IT (V) (Note 7) @ IT VC IPP
C Typ.(Note 9)
Volts µA MIN NOM MAX mA Volts Amps pF
SZ1SMA10CAT3G QXC 10 2.5 11.1 11.69 12.27 1.0 17.0 23.5 580
SZ1SMA12CAT3G REC 12 2.5 13.3 14.00 14.70 1.0 19.9 20.1 490
SZ1SMA13CAT3G RGC 13 2.5 14.4 15.16 15.92 1.0 21.5 18.6 455
SZ1SMA15CAT3G RMC 15 2.5 16.7 17.58 18.46 1.0 24.4 16.4 400
SZ1SMA16CAT3G RPC 16 2.5 17.8 18.74 19.67 1.0 26.0 15.4 375
SZ1SMA18CAT3G RTC 18 2.5 20 21.06 22.11 1.0 29.2 13.7 335
SZ1SMA20CAT3G RVC 20 2.5 22.2 23.37 24.54 1.0 32.4 12.3 305
SZ1SMA24CAT3G RZC 24 2.5 26.7 28.11 29.51 1.0 38.9 10.3 260
SZ1SMA26CAT3G SEC 26 2.5 28.9 30.42 31.94 1.0 42.1 9.5 240
SZ1SMA28CAT3G SGC 28 2.5 31.1 32.74 34.37 1.0 45.4 8.8 225
SZ1SMA30CAT3G SKC 30 1.0 33.3 35.06 36.81 1.0 48.4 8.3 210
SZ1SMA33CAT3G SMC 33 2.5 36.7 38.63 40.56 1.0 53.3 7.5 190
SZ1SMA36CAT3G SPC 36 2.5 40 42.11 44.21 1.0 58.1 6.9 175
SZ1SMA40CAT3G SRC 40 2.5 44.4 46.74 49.07 1.0 64.5 6.2 160
SZ1SMA48CAT3G SXC 48 2.5 53.3 56.11 58.91 1.0 77.4 5.2 135
SZ1SMA58CAT3G TGC 58 2.5 64.4 67.79 71.18 1.0 93.6 4.3 115
SZ1SMA60CAT3G TKC 60 2.5 66.7 70.21 73.72 1.0 96.8 4.1 110
SZ1SMA70CAT3G TPC 70 2.5 77.8 81.90 85.99 1.0 113 3.5 95
SZ1SMA78CAT3G TTC 78 2.5 86.7 91.27 95.83 1.0 126 3.2 90
6. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak
operating voltage level
7. VBR measured at pulse test current IT at an ambient temperature of 25°C
8. Surge current waveform per Figure 2 and derate per Figure 3
9. Bias voltage = 0 V, F = 1.0 MHz, TJ = 25°C.
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Electrical Characteristics – For Unidirectional
Breakdown VoltageVC @ IPP
(Note 12)
Device* Device Marking
VRWM
(Note 10)
IR @ VRWM
VBR @ IT (V) (Note 11) @ IT VC IPP
C Typ.(Note 13)
Volts µA MIN NOM MAX mA Volts Amps pF
SZ1SMA5.0AT3G QE 5.0 400 6.4 6.7 7.0 10 9.2 43.5 2035
SZ1SMA6.0AT3G QG 6.0 400 6.67 7.02 7.37 10 10.3 38.8 1730
SZ1SMA6.5AT3G QK 6.5 250 7.22 7.6 7.98 10 11.2 35.7 1605
SZ1SMA8.0AT3G QR 8.0 25 8.89 9.36 9.83 1 13.6 29.4 1035
SZ1SMA8.5AT3G QT 8.5 5.0 9.44 9.92 10.4 1 14.4 27.8 1265
SZ1SMA9.0AT3G QV 9.0 2.5 10 10.55 11.1 1 15.4 26.0 1200
SZ1SMA10AT3G QX 10 2.5 11.1 11.7 12.3 1 17.0 23.5 1090
SZ1SMA11AT3G QZ 11 2.5 12.2 12.85 13.5 1 18.2 22.0 1000
SZ1SMA12AT3G RE 12 2.5 13.3 14.0 14.7 1 19.9 20.1 925
SZ1SMA13AT3G RG 13 2.5 14.4 15.15 15.9 1 21.5 18.6 860
SZ1SMA14AT3G RH 14 2.5 15.6 16.4 17.2 1 23.2 17.2 800
SZ1SMA15AT3G RM 15 2.5 16.7 17.6 18.5 1 24.4 16.4 758
SZ1SMA16AT3G RP 16 2.5 17.8 18.75 19.7 1 26.0 15.4 715
SZ1SMA17AT3G RR 17 2.5 18.9 19.9 20.9 1 27.6 14.5 680
SZ1SMA18AT3G RT 18 2.5 20 21.05 22.1 1 29.2 13.7 645
SZ1SMA20AT3G RV 20 2.5 22.2 23.35 24.5 1 32.4 12.3 585
SZ1SMA22AT3G RX 22 2.5 24.4 25.65 26.9 1 35.5 11.3 540
SZ1SMA24AT3G RZ 24 2.5 26.7 28.1 29.5 1 38.9 10.3 500
SZ1SMA26AT3G SE 26 2.5 28.9 30.4 31.9 1 42.1 9.5 460
SZ1SMA28AT3G SG 28 2.5 31.1 32.75 34.4 1 45.4 8.8 430
SZ1SMA30AT3G SK 30 2.5 33.3 35.05 36.8 1 48.4 8.3 405
SZ1SMA33AT3G SM 33 2.5 36.7 38.65 40.6 1 53.3 7.5 375
SZ1SMA36AT3G SP 36 2.5 40 42.1 44.2 1 58.1 6.9 345
SZ1SMA40AT3G SR 40 2.5 44.4 46.75 49.1 1 64.5 6.2 315
SZ1SMA43AT3G ST 43 2.5 47.8 50.3 52.8 1 69.4 5.8 295
SZ1SMA45AT3G SV 45 2.5 50 52.65 55.3 1 72.2 5.5 280
SZ1SMA48AT3G SX 48 2.5 53.3 56.1 58.9 1 77.4 5.2 265
SZ1SMA54AT3G TE 54 2.5 60 63.15 66.3 1 87.1 4.6 240
SZ1SMA58AT3G TG 58 2.5 64.4 67.8 71.5 1 93.6 4.3 225
SZ1SMA70AT3G TP 70 2.5 77.8 81.9 86.0 1 113 3.5 190
10. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak operating voltage level.
11. VBR measured at pulse test current IT at an ambient temperature of 25°C.
12. Surge current waveform per Figure 2 and derate per Figure 3.
13. Bias voltage = 0 V, F = 1.0 MHz, TJ = 25°C.
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Figure 1. Pulse Rating Curve
Ratings and Characteristic Curves - For Bidirectional
Figure 2. Pulse Waveform
Figure 4. Typical Junction Capacitance vs. Bias Voltage
SZ1SMA10CAT3G
SZ1SMA18CAT3G
SZ1SMA48CAT3G
SZ1SMA78CAT3G
6
PEA
K CU
RREN
T
Figure 3 - Pulse Derating Curve
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Figure 5. Pulse Rating Curve
Ratings and Characteristic Curves – For Unidirectional
Figure 6. Pulse Waveform
Figure 8. Typical Junction Capacitance vs. Bias Voltage
Figure 9. Steady State Power Derating
10 4 0.11 10tP, PULSE WIDTH (ms)
NONREPETITIVEPULSE WAVEFORMSHOWN IN FIGURE 2.TA = 25°C
0.010.001
100
10
1
0.1
P pk,
PEAK
PO
WER
(kW
)
10,000
1,000
100
1001011
BIAS VOLTAGE (VOLTS)
1SMA5.0AT3G
TJ = 25°CF = 1 MHz
C, C
APA
CITA
NCE
(pF)
10
1SMA10AT3G
1SMA36AT3G
1SMA64AT3G
0
6
T, TEMPERATURE (°C)50 100 150
P D, M
AXI
MU
M P
OW
ER D
ISSI
PATI
ON
(WAT
TS)
5
4
3
2
0
1
@ TL = 75°CPD = 1.5 W
@ TA = 25°CPD = 0.5 W
25 75 125
SZ1SMA5.0AT3G
SZ1SMA10AT3G
SZ1SMA36AT3G
SZ1SMA64AT3G
NON-REPETITIVE PULSE WAVEFORMSHOWN IN FIGURE 6TA=25ºC
Figure 7. - Pulse Derating Curve
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 400W > SZ1SMA Series
Dimensions
Part Marking System
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L.
STYLE 1:
PIN 1. CATHODE (POLARITY BAND)
2. ANODE
Soldering Footrpint
Physical Specifications
CaseVoid-free, transfer-molded, thermosetting plastic
PolarityCathode indicated by molded polarity notch
Mounting Position Any
FinishAll external surfaces are corrosion resistant and leads are readily solderable
ORDERING INFORMATION
Device** Package Shipping†
SZ1SMAxxAT3G SMA(Pb−Free)
5,000 /Tape & Reel
SZ1SMAxxCAT3G SMA(Pb−Free)
5,000 /Tape & Reel
DimInches Millimeters
Min Nom Max Min Nom Max
A 0.078 0.083 0.087 1.97 2.10 2.20
A1 0.002 0.004 0.008 0.05 0.10 0.20
b 0.050 0.057 0.064 1.27 1.45 1.63
c 0.006 0.011 0.016 0.15 0.28 0.41
D 0.090 0.103 0.115 2.29 2.60 2.92
E 0.160 0.170 0.180 4.06 4.32 4.57
HE 0.190 0.205 0.220 4.83 5.21 5.59
L 0.030 0.045 0.060 0.76 1.14 1.52
4.0000.157
2.0000.079
2.0000.079
mminchesSCALE 8:1
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 260OC
Dipping Time : 10 seconds
**The “T3” suffix refers to a 13 inch reel.
E
bD
L c
A
A1
POLARITY INDICATOROPTIONAL AS NEEDED(SEE STYLES)
HE
D
LFXXXX
YMAWW
(Polarity Indicator for Uni-directional Only)
xxxx = Device Code (Max four digits)
= Year = Month = Assembly Location
= Lot Code
YMAWWWW
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1SMC5.0AT3G Series
• Working Peak Reverse Voltage Range − 5.0 V to 78 V
• Standard Zener Breakdown Voltage Range −
6.7 V to 91.25 V
• Peak Power − 1500 W @ 1 ms
• ESD Rating of Class 3 (> 16 KV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5 µA Above 10 V
• UL 497B for Isolated Loop Circuit Protection
• Maximum Temperature Coefficient Specified
• Response Time is Typically < 1 ns
• Pb−Free Packages are Available
• SZ Prefix for Automotive and Other Applications RequiringUnique Site and Control Change Requirements;AEC−Q101 Qualified and PPAP Capable
Features
The SZ1SMC5.0AT3G series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SZ1SMC5.0AT3G series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.
Description
Parameter Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL = 25°C, Pulse Width = 1 ms PPK 1500 W
DC Power Dissipation @ TL = 75°C Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction−to−Lead
PD
R JL
4.0
54.6
18.3
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ TA = 25°C
Derate Above 25°C
Thermal Resistance from Junction–to– Ambient
PD
R8JA
0.75
6.1
165
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA
= 25°C IFSM 200 A
Operating and Storage Temperature Range TJ, Tstg
-65 to+150 °C
Maximum Ratings and Thermal Characteristics
SZ1SMC5.0AT3G Series
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
Pb
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
1. 10 x 1000 µs, non−repetitive.
2. 1 in square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403-03 case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
Additional Information
SamplesResourcesDatasheet
Bi-directional
Uni-directional
Cathode Anode
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1SMC5.0AT3G Series
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VC Clamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IR Maximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
IT Test Current
IF Forward Current
VF Forward Voltage @ IF
I-V Curve Characteristics (TA = 25°C unless otherwise noted, VF = 3.5 V Max @ IF = 100 A) (Note 5)
V
I
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1SMC5.0AT3G Series
Electrical Characteristics (TA = 25°C unless otherwise noted)
Breakdown Voltage VC @ IPP (Note 8)
Device* Device Marking
VRWM
(Note 6)
IR @ VRWM
VBR (V) (Note 7) @ IT VC IPP
Volts µA MIN NOM MAX mA Volts Amps
SZ1SMC5.0AT3G GDE 5.0 1000 6.4 6.7 7.0 10 9.2 163
SZ1SMC6.0AT3G GDG 6.0 1000 6.67 7.02 7.37 10 10.3 145.6
SZ1SMC6.5AT3G GDK 6.5 500 7.22 7.6 7.98 10 11.2 133.9
SZ1SMC7.5AT3G GDP 7.5 100 8.33 8.77 9.21 1 12.9 116.3
SZ1SMC8.0AT3G GDR 8.0 50 8.89 9.36 9.83 1 13.6 110.3
SZ1SMC9.0AT3G GDV 9.0 10 10 10.55 11.1 1 15.4 97.4
SZ1SMC10AT3G GDX 10 5 11.1 11.7 12.3 1 17 88.2
SZ1SMC12AT3G GEE 12 5 13.3 14 14.7 1 19.9 75.3
SZ1SMC13AT3G GEG 13 5 14.4 15.15 15.9 1 21.5 69.7
SZ1SMC14AT3G GEK 14 5 15.6 16.4 17.2 1 23.2 64.7
SZ1SMC15AT3G GEM 15 5 16.7 17.6 18.5 1 24.4 61.5
SZ1SMC16AT3G GEP 16 5 17.8 18.75 19.7 1 26 57.7
SZ1SMC17AT3G GER 17 5 18.9 19.9 20.9 1 27.6 53.3
SZ1SMC18AT3G GET 18 5 20 21.05 22.1 1 29.2 51.4
SZ1SMC20AT3G GEV 20 5 22.2 23.35 24.5 1 32.4 46.3
SZ1SMC22AT3G GEX 22 5 24.4 25.65 26.9 1 35.5 42.2
SZ1SMC24AT3G GEZ 24 5 26.7 28.1 29.5 1 38.9 38.6
SZ1SMC26AT3G GFE 26 5 28.9 30.4 31.9 1 42.1 35.6
SZ1SMC28AT3G GFG 28 5 31.1 32.75 34.4 1 45.4 33
SZ1SMC30AT3G GFK 30 5 33.3 35.05 36.8 1 48.4 31
SZ1SMC33AT3G GFM 33 5 36.7 38.65 40.6 1 53.3 28.1
SZ1SMC36AT3G GFP 36 5 40 42.1 44.2 1 58.1 25.8
SZ1SMC40AT3G GFR 40 5 44.4 46.75 49.1 1 64.5 32.2
SZ1SMC43AT3G GFT 43 5 47.8 50.3 52.8 1 69.4 21.6
SZ1SMC48AT3G GFX 48 5 53.3 56.1 58.9 1 77.4 19.4
SZ1SMC51AT3G GFZ 51 5 56.7 59.7 62.7 1 82.4 18.2
SZ1SMC54AT3G GGE 54 5 60 63.15 66.3 1 87.1 17.2
SZ1SMC58AT3G GGG 58 5 64.4 67.8 71.2 1 93.6 16
SZ1SMC60AT3G GGK 60 5 66.7 70.2 73.7 1 96.8 15.5
SZ1SMC64AT3G GGM 64 5 71.1 74.85 78.6 1 103 14.6
SZ1SMC70AT3G GGP 70 5 77.8 81.9 86 1 113 13.3
SZ1SMC75AT3G GGR 75 5 83.3 87.7 92.1 1 121 12.4
SZ1SMC78AT3G GGT 78 5 86.7 91.25 95.8 1 126 11.4
6. A transient suppressor is normally selected according to the maximum working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous
peak operating voltage level.
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 1500 Watt at the beginning of this group.
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1SMC5.0AT3G Series
Figure 1. Pulse Rating Curve
Ratings and Characteristic Curves
Figure 2. Pulse Waveform
Figure 3. Pulse Derating Curve Figure 4. Dynamic Impedance
120
100
80
60
40
20
00 40 80 120 160 200
°
PEA
K PU
LSE
DER
ATIN
G IN
% O
FPE
AK
CU
RREN
T
10X1000 WAVEFORM
© 2017 Littelfuse, Inc.Specifications are subject to change without notice.
TVS DiodesSurface Mount > 1500W > SZ1SMC5.0AT3G Series
Dimensions
Part Marking System
LFXXXX
YMAWW
(Polarity Indicator for Uni-directional Only)
xxxx = Device Code (Max four digits)
= Year = Month = Assembly Location
= Lot Code
YMAWWWW
NOTES
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P.
4. 403-01 THRU -02 OBSOLETE, NEW STANDARD 403-03.
Soldering Footrpint
Physical Specifications
CaseVoid-free, transfer-molded, thermosetting plastic
Polarity Cathode indicated by polarity band
Mounting Position Any
FinishAll external surfaces are corrosion resistant and leads are readily solderable
LeadsModified L−Bend providing more contact area to bond pads
ORDERING INFORMATION
Device Package Shipping†
SZ1SMCxxAT3G SMC(Pb−Free)
2,500 /Tape & Reel
DimInches Millimeters
Min Nom Max Min Nom Max
A 0.079 0.087 0.095 2.00 2.22 2.41
A1 0.002 0.004 0.008 0.05 0.10 0.20
b 0.115 0.118 0.125 2.92 3.00 3.18
c 0.006 0.009 0.012 0.15 0.23 0.30
D 0.220 0.230 0.240 5.59 5.84 6.10
E 0.260 0.270 0.280 6.60 6.86 7.11
HE 0.305 0.313 0.320 7.75 7.94 8.13
L 0.030 0.040 0.050 0.76 1.02 1.27
L1 0.020 REF 0.51 REF
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 260OC
Dipping Time : 10 seconds
E
b D
HE
mminchesA
L L1 c A1
LFPCN41296 Affected Parts ListList of Part Numbers that covers
manufacturing size transfer activities (SMC)
List of Part Numbers that covers manufacturing size
transfer activities (SMA)SZ1SMC10AT3G SC1SMA12AT3GSZ1SMC12AT3G SZ1SMA10AT3GSZ1SMC13AT3G SZ1SMA11AT3GSZ1SMC14AT3G SZ1SMA12AT3GSZ1SMC15AT3G SZ1SMA13AT3GSZ1SMC16AT3G SZ1SMA14AT3GSZ1SMC17AT3G SZ1SMA15AT3GSZ1SMC18AT3G SZ1SMA16AT3GSZ1SMC20AT3G SZ1SMA17AT3GSZ1SMC22AT3G SZ1SMA18AT3GSZ1SMC24AT3G SZ1SMA20AT3GSZ1SMC26AT3G SZ1SMA22AT3GSZ1SMC28AT3G SZ1SMA24AT3GSZ1SMC30AT3G SZ1SMA26AT3GSZ1SMC33AT3G SZ1SMA28AT3GSZ1SMC36AT3G SZ1SMA30AT3GSZ1SMC40AT3G SZ1SMA33AT3GSZ1SMC43AT3G SZ1SMA36AT3GSZ1SMC48AT3G SZ1SMA40AT3GSZ1SMC5.0AT3G SZ1SMA43AT3GSZ1SMC51AT3G SZ1SMA45AT3GSZ1SMC54AT3G SZ1SMA48AT3GSZ1SMC58AT3G SZ1SMA5.0AT3GSZ1SMC6.0AT3G SZ1SMA54AT3GSZ1SMC6.5AT3G SZ1SMA58AT3GSZ1SMC60AT3G SZ1SMA6.0AT3GSZ1SMC64AT3G SZ1SMA6.5AT3GSZ1SMC7.5AT3G SZ1SMA70AT3GSZ1SMC70AT3G SZ1SMA8.0AT3GSZ1SMC75AT3G SZ1SMA8.5AT3GSZ1SMC78AT3G SZ1SMA9.0AT3GSZ1SMC8.0AT3G SZ1SMA10CAT3GSZ1SMC9.0AT3G SZ1SMA12CAT3GSC1.5SMC62AT3G SZ1SMA13CAT3GSZ1.5SMC10AT3G SZ1SMA15CAT3GSZ1.5SMC12AT3G SZ1SMA16CAT3GSZ1.5SMC13AT3G SZ1SMA18CAT3GSZ1.5SMC15AT3G SZ1SMA20CAT3GSZ1.5SMC16AT3G SZ1SMA24CAT3GSZ1.5SMC18AT3G SZ1SMA26CAT3GSZ1.5SMC20AT3G SZ1SMA28CAT3GSZ1.5SMC22AT3G SZ1SMA30CAT3GSZ1.5SMC24AT3G SZ1SMA33CAT3GSZ1.5SMC27AT3G SZ1SMA36CAT3GSZ1.5SMC30AT3G SZ1SMA40CAT3GSZ1.5SMC33AT3G SZ1SMA48CAT3GSZ1.5SMC36AT3G SZ1SMA58CAT3GSZ1.5SMC39AT3G SZ1SMA60CAT3GSZ1.5SMC43AT3G SZ1SMA70CAT3GSZ1.5SMC47AT3G SZ1SMA78CAT3GSZ1.5SMC51AT3G
SZ1.5SMC56AT3GSZ1.5SMC6.8AT3GSZ1.5SMC62AT3GSZ1.5SMC68AT3GSZ1.5SMC7.5AT3GSZ1.5SMC75AT3GSZ1.5SMC82AT3GSZ1.5SMC91AT3G