ST Life.augmented

SM4TY

Automotive 400 W Transil™
  • active Active

The SM4TY Transil series has been designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605.

The planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. SM4TY devices are packaged in SMA (SMA footprint in accordance with IPC 7531 standard).

pdf Please read
Errata Sheet
pdf Download
Datasheet

Key Features

  • Peak pulse power:
  • 400 W (10/1000 μs)
  • 2.3 kW (8/20 μs)
  • Stand-off voltage range: from 5 V to 70 V
  • Unidirectional and bidirectional types
  • Low leakage current:
  • 0.2 μA at 25 °C
  • 1 μA at 85 °C
  • Operating Tj max: 150 °C
  • High power capability at Tj max:
  • 270 W (10/1000 μs)
  • JEDEC registered package outline
  • Resin meets UL 94, V0
  • AEC-Q101 qualified
  • Complies with the following standards
  • ISO 10605, C = 150 pF, R = 330 Ω:
  • 30 kV (air discharge)
  • 30 kV (contact discharge)
  • ISO 10605, C = 330 pF, R = 330 Ω:
  • 30 kV (air discharge)
  • 30 kV (contact discharge)
  • ISO 7637-21
  • pulse 1: VS= -100 V
  • pulse 2a: VS= +50 V
  • pulse 3a: VS= -150 V
  • pulse 3b: VS= +100 V

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6927: Automotive 400 W Transil™
3.0 231 KB

Application Notes

Description Version Size
pdf
AN2689: Protection of automotive electronics from electrical hazards, guidelines for design and component selection
3.1 798 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
zip
SM4TY PSpice model (.lib) and symbols (.olb)
1.0 48 KB

Publications and Collaterals

Selection Guides

Description Version Size
pdf
Automotive-grade protection devices and rectifiers
825 KB

Sample & Buy

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Part Number Marketing StatusBreakdown Voltage (typ) DirectionalityPackagePacking TypeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SM4T10AYActive9.9Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE49651
RS COMPONENTSOrder NowEUROPE497525
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SM4T10CAYActive9.9Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE45381
RS COMPONENTSOrder NowEUROPE497525
DIGIKEYOrder NowWORLDWIDE1751
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SM4T12AYActive11.7Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE38971
Ecopack2-
SM4T12CAYActive11.7Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE49751
RS COMPONENTSOrder NowEUROPE497525
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SM4T14AYActive14Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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SM4T14CAYActive14Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE49001
RS COMPONENTSOrder NowEUROPE495025
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SM4T15CAYActive15.2Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE10751
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SM4T18AYActive17.6Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE48451
RS COMPONENTSOrder NowEUROPE450025
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SM4T18CAYActive17.6Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE6731
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SM4T21AYActive21.1Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE47911
RS COMPONENTSOrder NowEUROPE500025
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SM4T21CAYActive21.1Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE46801
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SM4T23AYActive23.4Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE49701
RS COMPONENTSOrder NowEUROPE500025
MOUSEROrder NowWORLDWIDE49001
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SM4T23CAYActive23.4Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE48571
RS COMPONENTSOrder NowEUROPE500010
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SM4T26AYActive25.7Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE49801
RS COMPONENTSOrder NowEUROPE480025
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SM4T26CAYActive25.7Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE50001
RS COMPONENTSOrder NowEUROPE500025
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SM4T28AYActive28.1Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE45111
RS COMPONENTSOrder NowEUROPE442525
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SM4T28CAYActive28.1Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE44821
RS COMPONENTSOrder NowEUROPE490025
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SM4T30AYActive30.4Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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RS COMPONENTSOrder NowEUROPE477525
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SM4T30CAYActive30.4Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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SM4T33CAYActive32.7Bi-Directional;Uni-DirectionalSMATape And Reel-.147Distributor reported inventory date: 2015-01-29
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MOUSEROrder NowWORLDWIDE50001
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SM4T35AYActive35.1Bi-Directional;Uni-DirectionalSMATape And Reel-.137Distributor reported inventory date: 2015-01-29
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Farnell Element14Order NowEUROPE45001
RS COMPONENTSOrder NowEUROPE2000025
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Farnell Element14Order NowEUROPE43221
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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