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STMicroelectronics SM6T10CAY — Circuit Protection

STMicro SM6T10CAY TVS Diode, 600W Bidirectional, AEC-Q101

MPNSM6T10CAY
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STMicroelectronics SM6T10CAY, Automotive AEC-Q101 TRANSIL™ bidirectional TVS diode, 600W peak pulse power, 8.55V reverse standoff, 18.6V clamping, DO-214AA SMB package.

$0.7800Ref. price · indicative, final on quote
STMicroelectronics SM6T10CAY datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SM6T10CAY specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, SM6TY, TRANSIL™
MountingSurface Mount
Voltage - breakdown9.5V
Voltage - clamping (Max) @ ipp18.6V
Voltage - reverse standoff8.55V
Current - peak pulse (10/1000μs)215A (8/20µs)
Power - peak pulse600W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsAutomotive
CaseDO-214AA, SMB
Bidirectional channels1

Product details

600W peak pulse in a DO-214AA — what it covers

The STMicroelectronics SM6T10CAY is a bidirectional Zener TVS diode from the TRANSIL™ SM6TY series, rated for 600W peak pulse power (10/1000µs waveform) and packaged in a surface-mount DO-214AA (SMB) case. The 8.55V reverse standoff voltage and 18.6V clamping at 215A peak pulse current (8/20µs) make it a fit for protecting 5V and 12V rails in automotive ECUs, sensors, and infotainment modules against load-dump and inductive-switching transients.

Bidirectional — no polarity guesswork on site

This is a single bidirectional channel, so orientation does not matter when you solder it in — handy if you are swapping a blown TVS on a field-returned board without a schematic. No power line protection means it is designed for signal or low-power supply clamping, not mains.

Frequently asked questions

What is the closest pin-compatible alternative to SM6T10CAY?

The base product number SM6T10 covers multiple variants in the SM6TY series — the SM6T10CAY is the bidirectional AEC-Q101 version. A unidirectional AEC-Q101 sibling (SM6T10AY) exists but is not pin-compatible for bidirectional applications since the polarity marking differs. For a non-automotive bidirectional replacement, the SM6T10CA (without the Y suffix) is the commercial-grade equivalent, same package and ratings.