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Diodes Incorporated SMAJ70A-13 — Circuit Protection

SMAJ70A-13 Diodes Inc TVS, 70V Standoff, 400W, DO-214AC

MPNSMAJ70A-13
End of Life

Diodes Incorporated SMAJ70A-13 Zener TVS diode, 400W peak pulse power, 70V reverse standoff, 113V clamping, unidirectional, DO-214AC SMA package, Tape & Reel.

$0.3900Ref. price · indicative, final on quote
Diodes Incorporated SMAJ70A-13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ70A-13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown77.8V
Voltage - clamping (Max) @ ipp113V
Voltage - reverse standoff70V
Current - peak pulse (10/1000μs)3.5A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

70V rail protection in a standard SMA footprint

The SMAJ70A-13: Its 77.8V minimum breakdown voltage ensures the device stays off during normal operation, while the 113V maximum clamping voltage at 3.5A peak pulse current (10/1000µs waveform) limits the voltage spike seen by downstream components. The DO-214AC (SMA) surface-mount package is a widely used footprint for board-level transient suppression, making this a drop-in fit for existing layouts that already use the SMA outline.

Rated for operation from -55°C to 150°C junction temperature, the SMAJ70A-13 covers the full industrial temperature band and extends into automotive under-hood environments where ambient temperatures can reach 125°C. The 150°C TJ max provides margin for self-heating during repetitive surge events.

Frequently asked questions

What package does the SMAJ70A-13 come in?

The SMAJ70A-13 is supplied in a DO-214AC (SMA) surface-mount package. It is available in Tape & Reel (TR) and Cut Tape (CT) options for different assembly volumes.