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Microchip Technology SMAJ54CE3/TR13 — Circuit Protection

SMAJ54CE3/TR13 TVS Diode – 54V Standoff, 500W, DO-214AC

MPNSMAJ54CE3/TR13
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Microchip Technology SMAJ54CE3/TR13, Zener TVS diode, 54V reverse standoff, 60V breakdown (min), 96.3V clamp @ 5.2A, 500W peak pulse power, DO-214AC (SMA), single bidirectional channel.

$0.1800Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ54CE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown60V
Voltage - clamping (Max) @ ipp96.3V
Voltage - reverse standoff54V
Current - peak pulse (10/1000μs)5.2A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Bidirectional channels1

Product details

What the 60V breakdown buys the design

That threshold means the device stays transparent below 54V reverse standoff and only starts clamping once the transient pushes above 60V — a clean window for 48V or 54V rails that need to ride out normal ripple without leakage. The 5.2A peak pulse current gives the designer a hard limit for fuse coordination or downstream component stress.

Housed in a DO-214AC (SMA) package, this is a two-terminal surface-mount device with a cathode band on one end — orientation is obvious under magnification. The SMA body is small enough to rework with a standard hot-air station; the junction-to-ambient thermal path depends on the copper pad area under each terminal, so keep the footprint generous if the board sees repetitive surges.

This is a current-production part, sourced to order against BOM quantities.

Frequently asked questions

Is the SMAJ54CE3/TR13 bidirectional?

Yes, it has a single bidirectional channel. That means it clamps equally on positive and negative transients, making it suitable for AC lines or bipolar signal pairs without worrying about polarity.

What is the peak pulse power rating of the SMAJ54CE3/TR13?

Rated at 500W for a 10/1000µs waveform. The clamping voltage at that peak current is 96.3V.