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Diodes Incorporated SMAJ78CA-13 — Circuit Protection

SMAJ78CA-13 Diodes Inc TVS, 78V Standoff, 400W, DO-214AC

MPNSMAJ78CA-13
End of Life

Diodes Incorporated SMAJ78CA-13 bidirectional Zener TVS diode, 400W peak pulse power, 78V reverse standoff, 126V clamping, DO-214AC SMA package, Tape & Reel.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ78CA-13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown86.7V
Voltage - clamping (Max) @ ipp126V
Voltage - reverse standoff78V
Current - peak pulse (10/1000μs)2.2A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Bidirectional channels1

Product details

78V bidirectional TVS for 400W surge clamping

The SMAJ78CA-13: With a peak pulse power rating of 400W (10/1000µs waveform), it absorbs surges up to 2.2A while clamping at 126V maximum. The reverse standoff voltage of 78V means the diode does not conduct below that level — it sits as a high-impedance shunt across the protected line until a transient exceeds the minimum breakdown voltage of 86.7V.

Package and board-fit for SMA footprint

Housed in the DO-214AC (SMA) package, this surface-mount diode suits automated pick-and-place assembly. The SMA footprint is standard across the industry — the same pad layout serves equivalent TVS parts from multiple manufacturers, easing second-source qualification.

Frequently asked questions

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