Skip to main content
Littelfuse Inc. 1.5KE510-B — Circuit Protection

Littelfuse 1.5KE510-B TVS Diode, 1500W, 434V Standoff

MPN1.5KE510-B
Obsolete

Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE510-B, 1500W peak pulse power, 434V reverse standoff, 732.9V clamping, DO-201AA/DO-27 axial, through-hole, bulk.

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

Specifications

1.5KE510-B specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown459V
Voltage - clamping (Max) @ ipp732.9V
Voltage - reverse standoff434V
Current - peak pulse (10/1000μs)2.1A
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 current — what the ratings mean for circuit protection

The 1.5KE510-B: Breakdown voltage (VBR) is specified at a minimum of 459 V, the point where the Zener junction begins to conduct and clamp the transient.

Obsolete — sourcing through independent channels

Littelfuse lists the 1.5KE510-B as Obsolete — the manufacturer no longer produces this part number.

Frequently asked questions

What package does the 1.5KE510-B come in?

It is a through-hole axial-lead device in a DO-201AA / DO-27 package (supplier device package DO-201), supplied in bulk.