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Vishay General Semiconductor - Diodes Division 1.5SMC56AHM3_A/I — Circuit Protection

1.5SMC56AHM3_A/I Vishay TVS Zener, 1.5kW, AEC-Q101

MPN1.5SMC56AHM3_A/I
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Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, Zener TVS diode, 1500W peak pulse power, 47.8V reverse standoff, DO-214AB SMC package, Tape & Reel.

$0.3331Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5SMC56AHM3_A/I datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC56AHM3_A/I specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown53.2V
Voltage - clamping (Max) @ ipp77V
Voltage - reverse standoff47.8V
Current - peak pulse (10/1000μs)19.5A
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

Clamping performance and selection criteria

The 1.5SMC56AHM3_A/I: The 1500W peak pulse power rating (1.5kW at 10/1000µs) defines the energy-handling capability for a single surge event; for repetitive transients, derate the peak power per the pulse derating curve in the datasheet. The single unidirectional channel and the absence of power line protection confirm this is a signal-rail or low-side clamp, not a direct AC mains protector.

The base product number 1.5SMC56 covers multiple package and qualification variants; the AHM3_A/I suffix specifically denotes the AEC-Q101 qualified version in Tape & Reel packaging, which is the ordering code for automotive production lines.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC56AHM3_A/I in this Circuit Protection family?

The base product number 1.5SMC56 covers multiple variants; the AHM3_A/I suffix specifies the AEC-Q101 qualified, Tape & Reel packaged version. A non-automotive alternative would be the standard 1.5SMC56A (without the HM3 suffix), which shares the same DO-214AB footprint and electrical ratings but lacks the AEC-Q101 qualification and automotive temperature grade testing.