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Littelfuse Inc. 1.5KE510C — Circuit Protection

Littelfuse 1.5KE510C TVS Diode, 1.5kW, DO-201

MPN1.5KE510C
Obsolete

Littelfuse Inc. 1.5KE series bidirectional TVS diode, 1.5KE510C, Zener type, 1500W peak pulse power, 434V reverse standoff, DO-201AA axial through-hole package.

Littelfuse Inc. 1.5KE510C datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE510C 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)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

1.5 kW bidirectional TVS in a through-hole axial package

The 1.5KE510C: The single bidirectional channel protects against both positive and negative transients in a single DO-201AA axial-lead package.

Through-hole mounting and temperature range

Housed in a DO-201AA (DO-27) axial package, the 1.5KE510C is a through-hole part — easy to hand-solder into a prototype or a production board. The device does not include power line protection (no internal crowbar or SCR structure), so it is best applied as a secondary transient suppressor on signal or DC power rails rather than a primary AC mains protector.

Obsolete — sourcing through independent channels

Littelfuse lists the 1.5KE510C as Obsolete. No pin-compatible direct replacement from Littelfuse is documented, so a board spin would be required to substitute a different TVS.

Frequently asked questions

What is the closest pin-compatible alternative to the 1.5KE510C?

Littelfuse does not publish an official pin-compatible successor for the 1.5KE510C. A functionally similar TVS from the same 1.5KE series with a different voltage rating would require a different breakdown voltage, so the BOM position must be re-evaluated.

What compliance documentation does Littelfuse provide for the 1.5KE510C?

Compliance documentation should be requested at RFQ time from the supplying distributor.