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Microchip Technology SMAJ7.0CAE3/TR13 — Circuit Protection

SMAJ7.0CAE3/TR13 TVS Diode – Microchip, 500W, Bidirectional

MPNSMAJ7.0CAE3/TR13
Active

Microchip Technology SMAJ7.0CAE3/TR13, Zener TVS Diode, 500W Peak Pulse Power, 7V Reverse Standoff, Bidirectional, Surface Mount DO-214AC (SMA), Tape & Reel

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

Specifications

SMAJ7.0CAE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown7.78V
Voltage - clamping (Max) @ ipp12V
Voltage - reverse standoff7V
Current - peak pulse (10/1000μs)41.7A
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

Transient suppressor for 7V rails — active and in production

Its 500W peak pulse power rating handles typical surge events like inductive load switching or lightning-induced spikes in general-purpose equipment. This part is bidirectional, so it protects both polarities — useful on AC-coupled signal lines or where the rail polarity could reverse during a fault.

Clamping voltage and pulse current — sizing the protection margin

Maximum clamping voltage is 12V at a peak pulse current of 41.7A (10/1000 µs waveform). That means a 7V rail sees the diode clamp at 12V worst-case — check that the downstream circuitry's absolute maximum rating is above 12V. Minimum breakdown voltage is 7.78V, so the diode starts conducting just above the 7V standoff level. The 0.78V margin between standoff and breakdown is typical for TVS diodes — no power line protection feature, so it's not meant for continuous overvoltage clamping.

Package and temperature range — board-level fit

Housed in a DO-214AC (SMA) package, surface-mount, rated for -65°C to 150°C junction temperature. The wide temperature range suits outdoor or industrial enclosures where ambient can swing.

Frequently asked questions

Is SMAJ7.0CAE3/TR13 bidirectional?

Yes, it is a single-channel bidirectional Zener TVS. It clamps transients of either polarity.