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Taiwan Semiconductor Corporation 1.5KE39CAHB0G — Circuit Protection

1.5KE39CAHB0G TVS Diode, 1500W, 33.3V, DO-201

MPN1.5KE39CAHB0G
Active

Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, 1.5KE39CAHB0G, 1500W peak pulse power, 33.3V reverse standoff, DO-201AA through-hole, AEC-Q101 qualified.

$0.5792Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE39CAHB0G specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown37.1V
Voltage - clamping (Max) @ ipp53.9V
Voltage - reverse standoff33.3V
Current - peak pulse (10/1000μs)29A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageBulk
QualificationAEC-Q101
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Automotive-grade transient suppressor, 1500 W peak pulse

The 1.5KE39CAHB0G: The 33.3 V reverse standoff suits 24 V automotive systems where nominal rail voltage sits at 28 V during alternator charging; the 37.1 V minimum breakdown ensures the TVS does not conduct during normal operation.

At the 29 A peak pulse current (10/1000 µs), the clamping voltage reaches 53.9 V maximum. That figure sets the voltage stress the protected device sees: a downstream DC-DC converter rated at 60 V abs-max has 6 V of headroom above the clamp, so the TVS absorbs the surge before the converter's input FET avalanches. The DO-201AA (DO-27) axial-lead package suits point-to-point wiring or PCB through-hole mounting. The bulk packaging is typical for high-volume panel assembly where axial components feed into a radial inserter. The single bidirectional channel clamps both polarities, eliminating the need for two series diodes in a unidirectional configuration.

Active production — sourcing posture

The AEC-Q101 certification is backed by the manufacturer's PPAP documentation — a requirement for automotive tier-1 submittals.