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Vishay General Semiconductor - Diodes Division 1.5SMC33A-M3/9AT — Circuit Protection

1.5SMC33A-M3/9AT Vishay TVS Diode, 1500W, DO-214AB

MPN1.5SMC33A-M3/9AT
Active

Vishay General Semiconductor - Diodes Division 1.5SMC, TransZorb® series, Zener TVS diode, DO-214AB SMC package, 1500W peak pulse power, 28.2V standoff, Tape & Reel.

$0.3333Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5SMC33A-M3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC33A-M3/9AT specifications
ParameterValue
TypeZener
Series1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown31.4V
Voltage - clamping (Max) @ ipp45.7V
Voltage - reverse standoff28.2V
Current - peak pulse (10/1000μs)32.8A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

The 1.5SMC33A-M3/9AT: The DO-214AB (SMC) surface-mount package (also designated SMCJ) handles the 32.8A peak pulse current without cracking the body or lifting the leads, provided the PCB copper area under the cathode tab is sized for the thermal pulse.

No official successor or pin-compatible cross-reference is recorded from Vishay. The 1.5SMC series includes multiple voltage variants in the same DO-214AB footprint, but the 33V standoff version is the one that fits a 24V rail with adequate margin.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC33A-M3/9AT in this Circuit Protection family?

No official pin-compatible alternative or second-source is recorded from Vishay. The 1.5SMC series shares the same DO-214AB footprint across voltage variants, but a different standoff voltage changes the protection threshold.