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Taiwan Semiconductor Corporation 1.5KE27CA A0G — Circuit Protection

1.5KE27CA A0G TVS Diode, 1500W, 37.5V Clamp, DO-201

MPN1.5KE27CA A0G
Active

Taiwan Semiconductor Corporation 1.5KE series TVS diode, bidirectional, 1500W peak pulse power, 23.1V standoff, 37.5V clamping, DO-201AA axial package, Tape & Box.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE27CA A0G specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown25.7V
Voltage - clamping (Max) @ ipp37.5V
Voltage - reverse standoff23.1V
Current - peak pulse (10/1000μs)42A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
PackageTape & Box (TB)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Active production — 1500 W bidirectional transient suppressor

The 1.5KE27CA A0G: It clamps transients at 37.5 V maximum, with a 23.1 V reverse standoff voltage — meaning the protected DC rail can sit at 23.1 V continuously without the diode conducting leakage.

Breakdown, clamp, and thermal envelope

Minimum breakdown voltage is 25.7 V, ensuring the diode starts conducting before the protected circuit's absolute-max rating is reached. The 42 A peak pulse current (10/1000 µs) at the 37.5 V clamp level defines the surge capacity — useful for sizing the TVS against expected transient energy in industrial or automotive 24 V bus applications.

DO-201 axial package — through-hole board fit

Housed in the DO-201AA (DO-27) axial-lead package, the diode mounts through-hole and requires a 0.052-inch diameter lead hole on the PCB. The axial form factor is standard for high-power transient suppressors — the leads carry the 42 A surge without trace heating at the board interface.

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