Skip to main content
Taiwan Semiconductor Corporation 1.5KE51AHB0G — Circuit Protection

1.5KE51AHB0G Taiwan Semiconductor, 1500W Zener TVS, DO-201

MPN1.5KE51AHB0G
Active

Taiwan Semiconductor Corporation 1.5KE series Zener TVS, 1.5KE51AHB0G, 1500W peak pulse, 43.6V reverse standoff, 70.1V clamping, 22A peak pulse, AEC-Q101, DO-201AA axial through-hole, bulk.

$0.4993Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE51AHB0G specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown48.5V
Voltage - clamping (Max) @ ipp70.1V
Voltage - reverse standoff43.6V
Current - peak pulse (10/1000μs)22A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageBulk
QualificationAEC-Q101
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Active automotive-grade TVS for 48V bus protection

The 1.5KE51AHB0G: Its 43.6 V reverse standoff voltage makes it a fit for 48 V DC bus clamping in automotive and industrial power rails, while the 70.1 V maximum clamping voltage at 22 A peak pulse current limits the spike seen by downstream components.

AEC-Q101 qualification and temperature envelope

The junction temperature range spans -55°C to 175°C, covering the full automotive ambient plus self-heating margin during a pulse event.

Through-hole DO-201 package and board integration

Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE51AHB0G mounts with standard 0.040-inch diameter holes on a 0.300-inch lead spacing. The bulk packaging suits low-volume production and prototyping; the axial leads handle the thermal cycling of soldering without the stress concentration of a surface-mount joint.