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Littelfuse Inc. 1.5KE100C-B — Circuit Protection

1.5KE100C-B Littelfuse TVS Diode, 1500W, DO-201

MPN1.5KE100C-B
Obsolete

Littelfuse Inc. 1.5KE series bidirectional Zener TVS diode, 1.5KE100C-B, 1500W peak pulse power, 85.5V standoff, 90V breakdown, 143.85V clamping, DO-201AA axial package, bulk.

Littelfuse Inc. 1.5KE100C-B datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE100C-B specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown90V
Voltage - clamping (Max) @ ipp143.85V
Voltage - reverse standoff85.5V
Current - peak pulse (10/1000μs)11.1A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Obsolete — sourcing for sustainment

The 1.5KE100C-B is listed as Obsolete by Littelfuse, meaning the manufacturer has discontinued production with no scheduled last-time-buy window.

1500W bidirectional Zener — what the ratings mean

A single bidirectional channel means the device protects against both positive and negative transients in one package — useful for AC signal lines or DC rails where polarity reversal is possible.

DO-201 axial — board-fit and thermal note

Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE100C-B is a through-hole device suited for point-to-point wiring or PCB mounting with 0.042-inch diameter leads.

Frequently asked questions

What is the peak pulse power rating of the 1.5KE100C-B?

1500W (1.5kW) at 10/1000µs waveform, clamping a peak pulse current of 11.1A to a maximum of 143.85V.

What package does the 1.5KE100C-B use?

A DO-201AA (DO-27) axial-lead through-hole package, with the supplier device package designated as DO-201.