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Vishay General Semiconductor - Diodes Division 1.5SMC20AHM3/H — Circuit Protection

Vishay 1.5SMC20AHM3/H TVS Diode, 1500W, DO-214AB, AEC-Q101

MPN1.5SMC20AHM3/H
Active

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb series, Zener TVS diode, 1500W peak pulse, DO-214AB SMC package, unidirectional, 17.1V standoff, 27.7V clamp.

Vishay General Semiconductor - Diodes Division 1.5SMC20AHM3/H datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC20AHM3/H specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown19V
Voltage - clamping (Max) @ ipp27.7V
Voltage - reverse standoff17.1V
Current - peak pulse (10/1000μs)54.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive, Telecom
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Automotive-grade surge protection

The 1.5SMC20AHM3/H: Housed in the DO-214AB (SMC) package, the footprint is standard for TVS diodes at this power level — the copper pad on the cathode tab sets the thermal resistance to the board; a solid ground-plane connection is recommended for full 1500 W surge capability.

Sourcing and compliance

No pin-compatible second source or direct cross-reference is listed by the manufacturer; the 1.5SMC20 base number shares the same clamping and breakdown voltage across the TransZorb family, but the AEC-Q101 suffix (AHM3/H) is specific to the automotive-grade variant.

Frequently asked questions

What compliance documentation does Vishay provide for this part?

The part is manufactured under the Vishay General Semiconductor - Diodes Division brand and carries AEC-Q101 automotive qualification.