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Taiwan Semiconductor Corporation 1.5SMC20AH — Circuit Protection

1.5SMC20AH TVS Diode, 1500W, 17.1V Standoff, DO-214AB

MPN1.5SMC20AH
Active

Taiwan Semiconductor Corporation 1.5SMC series automotive TVS diode, Type Zener, 1500W peak pulse power, 17.1V reverse standoff, 27.7V clamping, DO-214AB SMC package, Tape & Reel.

$0.2104Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC20AH specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown19V
Voltage - clamping (Max) @ ipp27.7V
Voltage - reverse standoff17.1V
Current - peak pulse (10/1000μs)56A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 150°C (TJ)
GradeAutomotive
PackageTape & Reel (TR)
ApplicationsTelecom
QualificationAEC-Q101
CaseDO-214AB, SMC
Unidirectional channels1

Product details

1500W automotive TVS in a hand-solderable package

The 1.5SMC20AH is a 1500W peak pulse power TVS diode from Taiwan Semiconductor Corporation, designed to clamp transients on 12V and 24V automotive power rails. Its 17.1V reverse standoff voltage means it sits across the line without conducting during normal operation, then fires at 19V breakdown to shunt the surge to ground. The DO-214AB (SMC) package is large enough for hand soldering with a standard iron — no hot-air rework station required for prototyping or rework.

Clamping specs that matter for the BOM

At 27.7V maximum clamping voltage, this diode holds the protected line below the typical 30V abs-max of most automotive-rated ICs and modules. The 56A peak pulse current rating (10/1000µs waveform) tells you it can absorb a substantial surge — think load-dump or alternator field decay events — without failing short. For a production BOM headed into a vehicle ECU or body controller, this certification removes the need for additional PPAP documentation from the diode alone.

Active lifecycle and sourcing posture

No minimum order threshold beyond the reel quantity; the Tape & Reel packaging suits both pick-and-place assembly and bench-level hand placement.