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Microchip Technology SMAJ70E3/TR13 — Circuit Protection

SMAJ70E3/TR13 TVS Diode – 500W, 70V Standoff, DO-214AC

MPNSMAJ70E3/TR13
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Microchip Technology SMAJ70E3/TR13, Zener TVS diode, 500 W peak pulse power, 70 V reverse standoff, unidirectional, DO-214AC (SMA) surface mount package.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ70E3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ70E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown77.8V
Voltage - clamping (Max) @ ipp125V
Voltage - reverse standoff70V
Current - peak pulse (10/1000μs)4A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

500 W peak pulse power, 70 V standoff — what it protects

The SMAJ70E3/TR13 is a unidirectional Zener TVS diode from Microchip Technology, rated for 500 W peak pulse power under the 10/1000 µs waveform. Its 70 V reverse standoff voltage means it clamps transients on 48 V or 60 V DC buses — not 5 V or 12 V rails. The breakdown voltage starts at 77.8 V, and the clamping voltage is held to 125 V at the 4 A peak pulse current.

Sourcing is straightforward — we can quote against your BOM quantity and lead time at the time of request.

Frequently asked questions

Can SMAJ70E3/TR13 be used for 5V DC protection?

No — the 70 V reverse standoff is far above a 5 V rail. For 5 V buses, look at a TVS with a standoff voltage near 5 V, such as the SMAJ5.0A series. This part is intended for 48 V or 60 V systems.