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Littelfuse Inc. 1.5KE18CA — Circuit Protection

1.5KE18CA Littelfuse TVS Diode, 1500W, 15.3V Standoff

MPN1.5KE18CA
Active

Littelfuse Inc., 1.5KE series, bidirectional TVS diode, 1.5KE18CA, 1500W peak pulse, 15.3V reverse standoff, 25.2V clamp, DO-201AA axial through-hole.

$0.8400Ref. price · indicative, final on quote
Littelfuse Inc. 1.5KE18CA datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE18CA specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown17.1V
Voltage - clamping (Max) @ ipp25.2V
Voltage - reverse standoff15.3V
Current - peak pulse (10/1000μs)60.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Surge protection for 15 V rails

The 1.5KE18CA: That is enough margin to protect a 15 V rail from inductive kickback or lightning-induced transients in industrial and general-purpose equipment.

Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE18CA is a through-hole part suited for wave-solder or hand-solder assembly. The DO-201 body handles the thermal pulse of a 1500 W surge without derating at 25 °C ambient. The wide range means the clamping behaviour stays consistent across the full temperature envelope.

Frequently asked questions

Is the 1.5KE18CA a bidirectional or unidirectional TVS?

It is a bidirectional Zener TVS, with a single bidirectional channel.

What package does the 1.5KE18CA come in?

It is supplied in a DO-201AA (DO-27) axial leaded through-hole package.