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Littelfuse Inc. 1.5SMC440C — Circuit Protection

1.5SMC440C Littelfuse Zener TVS, 1500W Bidirectional

MPN1.5SMC440C
Obsolete

Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC440C, bidirectional, 1500W peak pulse power, 376V reverse standoff, DO-214AB (SMC) package, Tape & Reel.

$0.9300Ref. price · indicative, final on quote
Littelfuse Inc. 1.5SMC440C datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC440C specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown396V
Voltage - clamping (Max) @ ipp632.1V
Voltage - reverse standoff376V
Current - peak pulse (10/1000μs)2.5A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

The 1.5SMC440C is listed as Obsolete by Littelfuse.

Zener TVS parametrics and fit

A bidirectional Zener TVS diode, the 1.5SMC440C clamps transients on both polarities — the single channel handles surges in either direction without a series diode. Peak pulse power is rated at 1500 W (1.5 kW) for the 10/1000 µs pulse — this sets the energy-handling ceiling for a single transient event.

DO-214AB footprint and board integration

Surface-mount with a standard JEDEC footprint — the cathode band is marked on the body for orientation. The tape-and-reel packaging supports automated pick-and-place for volume assembly.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC440C?

No official pin-compatible successor is listed by Littelfuse. For a functional replacement, evaluate other 1500 W bidirectional Zener TVS diodes in the DO-214AB package with a similar reverse standoff voltage (376 V) — but a board-level qualification is required since the breakdown and clamping voltages vary by device.

How can I order 1.5SMC440C or check availability?

This obsolete part is sourced through independent distribution. Submit an RFQ for current availability, pricing, and lot traceability. Quantities are confirmed at quote time.