Skip to main content
Log in
Littelfuse Inc. 1.5KE47C-B — Circuit Protection

Littelfuse 1.5KE47C-B TVS Diode, 1500W, 40.2V Standoff

MPN1.5KE47C-B
Obsolete

Littelfuse Inc. 1.5KE series bidirectional TVS diode, Zener type, 1.5KE47C-B, 1500W peak pulse, 40.2V reverse standoff, DO-201AA / DO-27 axial package, bulk.

Littelfuse Inc. 1.5KE47C-B datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE47C-B specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown42.35V
Voltage - clamping (Max) @ ipp68.04V
Voltage - reverse standoff40.2V
Current - peak pulse (10/1000μs)23.5A
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

1500W bidirectional transient suppressor — DO-201 axial

The 1.5KE47C-B: Reverse standoff voltage is 40.2V typical, with a minimum breakdown of 42.35V and maximum clamping at 68.04V when conducting 23.5A peak pulse current. Housed in a DO-201AA / DO-27 axial-lead package (supplier device package DO-201), through-hole mounted, bulk packaging.

Obsolete — sourcing through independent channels

No pin-compatible drop-in replacement exists from Littelfuse — a BOM review is required if migrating to an active part. No power line protection feature — this is a standard TVS diode for signal and low-voltage DC rail clamping, not for AC mains or high-energy transients.

Frequently asked questions

How can I source the 1.5KE47C-B or check availability?

This part is obsolete per Littelfuse. Request a quote for your BOM quantity.

Is the 1.5KE47C-B a unidirectional or bidirectional device?

It is a single-channel bidirectional Zener TVS diode — clamping is symmetrical for both positive and negative transients, which simplifies board layout when the protected line swings above and below ground.

What package does the 1.5KE47C-B use?

Through-hole DO-201AA / DO-27 axial package (supplier device package DO-201). The axial leads suit point-to-point wiring or through-hole PCB mounting with a 0.4-inch lead spacing typical for this body size.