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Vishay General Semiconductor - Diodes Division 1.5SMC400AHE3_A/I — Circuit Protection

1.5SMC400AHE3_A/I TVS Diode, 1500W, 342V Standoff, DO-214AB

MPN1.5SMC400AHE3_A/I
Obsolete

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, TVS Zener diode, 1500W peak pulse power, 342V reverse standoff, 548V clamping, unidirectional, DO-214AB SMC package, Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5SMC400AHE3_A/I datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC400AHE3_A/I specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown380V
Voltage - clamping (Max) @ ipp548V
Voltage - reverse standoff342V
Current - peak pulse (10/1000μs)2.7A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Obsolete — last-time-buy window closed

Vishay has marked the 1.5SMC400AHE3_A/I as Obsolete. Quantities are lot-specific and confirmed at RFQ; no factory lead time applies.

1500 W peak pulse — what the rating means

Rated for 1500 W peak pulse power dissipation under the 10/1000 µs waveform. This is the energy-handling ceiling for a single transient event — the device absorbs the surge and clamps the voltage, then resets.

AEC-Q101 and the automotive pedigree

Part of the Automotive, AEC-Q101 qualified 1.5SMC series using Vishay's TransZorb® silicon-avalanche technology. Unidirectional — one channel protects a single rail.

DO-214AB (SMC) — board-fit note

Supplied in DO-214AB (SMCJ) surface-mount package, Tape & Reel. The 548 V clamping voltage means the PCB clearance and creepage around the cathode tab should follow the peak transient voltage, not the standoff — a 600 V-rated clearance rule is a safe starting point.

Frequently asked questions

What package does 1.5SMC400AHE3_A/I use?

DO-214AB (SMC) surface-mount package, also referred to as SMCJ. Supplied on Tape & Reel.