Skip to main content
Log in
Littelfuse Inc. 1.5KE10CA — Circuit Protection

1.5KE10CA Littelfuse TVS Diode, 1500W, 14.5V Clamp

MPN1.5KE10CA
Active

Littelfuse Inc. 1.5KE series Zener TVS diode, bidirectional, 1.5KE10CA, 1500W peak pulse power, 14.5V clamping, DO-201AA axial package.

$0.6300Ref. price · indicative, final on quote
Littelfuse Inc. 1.5KE10CA datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE10CA specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown9.5V
Voltage - clamping (Max) @ ipp14.5V
Voltage - reverse standoff8.55V
Current - peak pulse (10/1000μs)104.8A
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

1500W peak pulse in a DO-201 body

The 1.5KE10CA is a 1500W bidirectional Zener TVS diode from Littelfuse's 1.5KE series, clamping at 14.5V on a 104.8A peak pulse current (10/1000µs waveform). The 8.55V reverse standoff means it stays transparent on a 5V or 12V rail, only clamping when the transient exceeds the 9.5V minimum breakdown threshold.

Clamping voltage and pulse current — what they mean for rail protection

14.5V clamping at 104.8A means the diode holds the transient below 14.5V even at full pulse current — a 12V rail with a 15V abs-max downstream regulator stays safe. The 9.5V min breakdown gives a 1V guard band above the 8.55V standoff — enough to avoid nuisance clamping from normal rail ripple or load transients.

Active production — sourcing posture

The DO-201 package is a standard axial-lead form factor that multiple foundries can supply, so second-source options exist within the 1.5KE family for identical electrical specs.

Frequently asked questions

Where can I buy 1.5KE10CA and check stock?

The 1.5KE10CA is an active Littelfuse part sourced through authorized and independent distribution. Availability and lead time are confirmed when you submit an RFQ against your BOM quantity.

What does the 14.5V clamping voltage mean for a 12V rail?

The 14.5V maximum clamp at 104.8A peak pulse current (10/1000µs) keeps the rail below the typical 15-16V abs-max of downstream 12V regulators. The 8.55V reverse standoff ensures the diode does not conduct during normal 12V operation — it only activates when the transient exceeds the 9.5V minimum breakdown threshold.

What package does 1.5KE10CA use?

Through-hole DO-201AA (DO-27 axial) package. The axial leads allow through-hole mounting on a PCB or point-to-point wiring in a terminal block or bus bar assembly. The DO-201 body is rated for the full 1500W pulse without derating at room temperature.