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Littelfuse Inc. 1.5SMC350 — Circuit Protection

1.5SMC350 Littelfuse TVS Diode, 300V Standoff, DO-214AB

MPN1.5SMC350
Obsolete

Littelfuse Inc. 1.5SMC series Zener TVS diode, unidirectional, 300V reverse standoff, 315V breakdown min, 506.1V clamping, 1500W peak pulse, DO-214AB (SMC) package, Tape & Reel.

$1.0155Ref. price · indicative, final on quote
Littelfuse Inc. 1.5SMC350 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC350 specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown315V
Voltage - clamping (Max) @ ipp506.1V
Voltage - reverse standoff300V
Current - peak pulse (10/1000μs)3.2A
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

The 1.5SMC350: The 1500W rating means this device can absorb a single 10/1000µs surge up to 3.2A without failing — useful for protecting 300V DC rails in industrial power supplies, telecom rectifiers, or solar inverter DC buses where the transient energy is high but infrequent.

For a BOM already qualified to this DO-214AB footprint and 300V standoff, the 1.5SMC350 remains a functional drop-in if stock is found. Confirm the exact breakdown voltage window and clamping performance against the existing design's surge requirements before committing.

Frequently asked questions

What is the closest alternative to the 1.5SMC350?

For a 300V standoff, 1500W TVS in DO-214AB, you would need to review parametric cross-references from other manufacturers (e.g., Vishay, Bourns) — the 1.5SMC350's breakdown window (315V min, 506.1V clamp) is the target spec.

How do I get current pricing and availability for the 1.5SMC350?

Submit an RFQ through this listing. The part is sourced to order through independent distribution; current pricing and available quantities are confirmed at quote time. No stock-holding claim is made here.

What is the 1.5SMC350's type and series?

It is a Zener TVS diode from the 1.5SMC series. Unidirectional, single-channel.