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Vishay General Semiconductor - Diodes Division 1.5SMC18A-E3/9AT — Circuit Protection

Vishay 1.5SMC18A-E3/9AT TVS Diode, 1500W, 15.3V Standoff

MPN1.5SMC18A-E3/9AT
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Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, Zener TVS diode, 1500W peak pulse, 15.3V reverse standoff, unidirectional, DO-214AB (SMC) surface mount, Tape & Reel.

$0.2266Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5SMC18A-E3/9AT datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC18A-E3/9AT specifications
ParameterValue
TypeZener
Series1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown17.1V
Voltage - clamping (Max) @ ipp25.2V
Voltage - reverse standoff15.3V
Current - peak pulse (10/1000μs)59.5A
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

Transient suppression for a 15.3 V rail

The 1.5SMC18A-E3/9AT: The 1500 W rating is the peak pulse power the device can absorb in a standard 10/1000 µs waveform — a common telecom or industrial surge shape. For shorter transients (8/20 µs), the diode can handle significantly higher peak current, but the 10/1000 µs figure is the one to use for BOM derating against IEC 61000-4-5 combined-wave tests.

Housed in a DO-214AB (SMC) package, also known as SMCJ, this diode has a standard surface-mount footprint with a cathode band for orientation. The base product number is 1.5SMC18; the -/9AT suffix denotes the specific lead-free finish and reel quantity variant.