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Taiwan Semiconductor Corporation 1.5SMC39CH — Circuit Protection

1.5SMC39CH TVS Diode, 1500W, 31.6V Standoff, DO-214AB

MPN1.5SMC39CH
Active

Taiwan Semiconductor Corporation 1.5SMC series Zener TVS diode, bidirectional, 1500W peak pulse power, 31.6V reverse standoff, 56.4V clamping, 27A Ipp, DO-214AB (SMC) surface mount, AEC-Q101 automotive grade.

$0.2184Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC39CH specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown35.1V
Voltage - clamping (Max) @ ipp56.4V
Voltage - reverse standoff31.6V
Current - peak pulse (10/1000μs)27A
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
Bidirectional channels1

Product details

AEC-Q101 qualification for automotive and telecom lines

The 1.5SMC39CH: Rated Automotive grade with AEC-Q101 qualification, meaning this TVS has passed the stress tests (temperature cycling, HTRB, ESD) required for under-hood and cabin electronics — not just a commercial-grade part with a wider temp range.

1500W peak pulse — clamping reality for 31.6V rails

Breakdown occurs at 35.1V minimum, giving a 3.5V window between normal rail voltage and the start of avalanche conduction — tight enough for regulated supplies but not for unregulated battery rails that sag below 35V.

DO-214AB surface-mount — board-fit notes

Supplied in Tape & Reel packaging for automated pick-and-place assembly; the single bidirectional channel means one device protects both polarities on the same line.

Frequently asked questions

What does the AEC-Q101 qualification mean for this TVS?

AEC-Q101 is the automotive-grade discrete semiconductor qualification standard. It certifies the 1.5SMC39CH has passed reliability testing (temperature cycling, high-temperature reverse bias, ESD) required for use in automotive electronics, not just commercial equipment.