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Vishay General Semiconductor - Diodes Division 1.5SMC480A-E3/57T — Circuit Protection

1.5SMC480A-E3/57T Vishay TVS, 1500W, 408V Standoff, DO-214AB

MPN1.5SMC480A-E3/57T
Obsolete

Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, Zener TVS diode, 1500W peak pulse, 408V reverse standoff, 658V clamp, DO-214AB SMC package, surface mount.

Vishay General Semiconductor - Diodes Division 1.5SMC480A-E3/57T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5SMC480A-E3/57T specifications
ParameterValue
TypeZener
Series1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown456V
Voltage - clamping (Max) @ ipp658V
Voltage - reverse standoff408V
Current - peak pulse (10/1000μs)2.28A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

The 1.5SMC480A-E3/57T: Vishay has marked the 1.5SMC480A-/57T as Obsolete. No stock-holding claim; availability verified per inquiry.

1500W peak pulse — what the rating means for protection

At 2.28A peak pulse current, the device clamps at 658V max. For a 400V nominal DC bus, this provides margin for transients without interfering with normal operation.

DO-214AB SMC — surface-mount board fit

This is a standard surface-mount TVS package, compatible with reflow soldering. Single unidirectional channel — intended for DC rail protection where polarity is fixed. No power line protection, meaning it is not rated for AC mains surge suppression; it is a secondary-side transient clamp for sensitive electronics.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC480A-/57T?

The functional replacement would be another 1500W, 408V standoff TVS in DO-214AB — confirm the clamping voltage and breakdown tolerance against the BOM requirement before substituting.

What compliance documentation does Vishay provide for 1.5SMC480A-/57T?

Standard Vishay TransZorb TVS diodes are typically RoHS-compliant; verify the specific date code lot at RFQ.