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Vishay General Semiconductor - Diodes Division 1.5SMC350A-E3/9AT — Circuit Protection

1.5SMC350A-E3/9AT Vishay Zener TVS, 300V Standoff, DO-214AB

MPN1.5SMC350A-E3/9AT
Obsolete

Vishay General Semiconductor 1.5SMC, TransZorb® Zener TVS, 1.5SMC350A-/9AT, 300V reverse standoff, 482V clamp, 1500W peak pulse, DO-214AB (SMC), Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5SMC350A-E3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC350A-E3/9AT specifications
ParameterValue
TypeZener
Series1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown333V
Voltage - clamping (Max) @ ipp482V
Voltage - reverse standoff300V
Current - peak pulse (10/1000μs)3.1A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

The 1.5SMC350A-E3/9AT: The 1.5SMC350A-/9AT is a Zener-type unidirectional TVS diode from Vishay's 1.5SMC series, branded TransZorb®. It is designed for general-purpose circuit protection in surface-mount assemblies.

The surface-mount footprint is compatible with standard reflow soldering processes. No power line protection is offered — this is a standalone transient suppressor, not a rail-clamp array.

Lifecycle reality and sourcing

Vishay has marked the 1.5SMC350A-/9AT as Obsolete. Sourcing is confirmed per RFQ — quantities are lot-specific and no stock-holding claim is made.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC350A-/9AT?

No pin-compatible alternative is listed in the lifecycle data. A functional replacement would require a parametric search for a 300 V standoff, 1500 W unidirectional TVS in DO-214AB — but no direct cross-reference is provided by Vishay.