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Littelfuse Inc. 1.5KE540C-B — Circuit Protection

Littelfuse 1.5KE540C-B TVS Diode, 1.5kW, 777V Clamp

MPN1.5KE540C-B
Obsolete

Littelfuse Inc. 1.5KE series, Type Zener, Bidirectional TVS Diode, 1.5KE540C-B, 1500W (1.5kW) Peak Pulse Power, 777V Clamping, DO-201AA/DO-27 Axial, Through Hole, Bulk.

$0.8600Ref. price · indicative, final on quote
Littelfuse Inc. 1.5KE540C-B datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE540C-B specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown486V
Voltage - clamping (Max) @ ipp777V
Voltage - reverse standoff486V
Current - peak pulse (10/1000μs)2A
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

1.5kW bidirectional transient suppressor, now obsolete

The 1.5KE540C-B: The single bidirectional channel protects against both positive and negative transients with a single device.

Obsolete – sourcing through independent channels

Littelfuse has marked the 1.5KE540C-B as Obsolete. For a BOM line that requires this exact clamping voltage and package, the independent supply chain is the only sourcing path. A board spin to a different package or a different TVS family is the alternative if the surplus channel cannot fill the quantity.

Frequently asked questions

How can I get current pricing and availability for the 1.5KE540C-B?

Pricing and stock are confirmed at quote time through independent distribution. Submit an RFQ against your BOM quantity; availability is lot-specific and verified per request.