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Littelfuse Inc. 1.5SMC150 — Circuit Protection

Littelfuse 1.5SMC150 TVS Diode, 1500W, DO-214AB

MPN1.5SMC150
Obsolete

Littelfuse 1.5SMC series Zener TVS diode, 1.5SMC150, DO-214AB (SMC) package, 128V reverse standoff, 217.35V clamp, 1500W peak pulse power, unidirectional.

$0.6200Ref. price · indicative, final on quote
Littelfuse Inc. 1.5SMC150 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC150 specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown135.45V
Voltage - clamping (Max) @ ipp217.35V
Voltage - reverse standoff128V
Current - peak pulse (10/1000μs)7.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Littelfuse has marked the 1.5SMC150 as obsolete. No official successor is listed, so any replacement will require a board spin or a parametric cross to a different TVS diode in the same DO-214AB footprint.

Housed in a DO-214AB (SMC) package, the 1.5SMC150 is a surface-mount device with a single unidirectional channel. The SMC footprint is larger than the SMA/SMB siblings, which helps with thermal dissipation during the pulse — the 1500 W rating assumes the standard copper land pattern on the PCB.

Frequently asked questions

Where can I buy the 1.5SMC150?

The 1.5SMC150 is obsolete but available through independent distribution.

What is the closest pin-compatible alternative to the 1.5SMC150?

No official pin-compatible successor is listed by Littelfuse. A functional replacement would need to match the DO-214AB footprint, 128 V standoff, and 1500 W peak pulse rating — a parametric search against the 1.5SMC series or a competitor's SMCJ family is the next step.