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Diodes Incorporated 1.5KE30A-B — Circuit Protection

1.5KE30A-B Diodes Inc TVS, 1500W, 25.6V Standoff, DO-201

MPN1.5KE30A-B
Obsolete

Diodes Incorporated 1.5KE series TVS Zener, unidirectional, 1500W peak pulse power, 25.6V reverse standoff, 41.4V clamping, DO-201AA/DO-27 axial, bulk.

$0.6000Ref. price · indicative, final on quote
Diodes Incorporated 1.5KE30A-B datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE30A-B specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown28.5V
Voltage - clamping (Max) @ ipp41.4V
Voltage - reverse standoff25.6V
Current - peak pulse (10/1000μs)36A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Clamping voltage and pulse handling for the 1.5KE30A-B

Its 25.6 V reverse standoff voltage protects a 24 V rail, clamping at 41.4 V when the surge current reaches 36 A. The 36 A peak pulse current rating at the 10/1000 µs test condition means this device absorbs a substantial transient before the clamping voltage rises above the protected circuit's absolute maximum. For a 24 VDC supply bus, the 25.6 V standoff provides margin against steady-state ripple without nuisance triggering.

Supplied in a DO-201AA (DO-27) axial-lead package, the 1.5KE30A-B mounts through-hole. The wide TJ range is typical for TVS diodes that must survive both cold-start and hot-soak conditions without derating the peak pulse power.

Diodes Incorporated lists the 1.5KE30A-B as obsolete.

Frequently asked questions

How can I buy the 1.5KE30A-B or check its price?

The 1.5KE30A-B is sourced through independent distribution.