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Diodes Incorporated SMAJ28AQ-13-F — Circuit Protection

SMAJ28AQ-13-F Diodes Inc Automotive TVS, 400W, 28V, DO-214AC

MPNSMAJ28AQ-13-F
Active

Diodes Incorporated SMAJ28AQ-13-F Automotive Zener TVS, 400W peak pulse power, 28V reverse standoff, 45.4V clamping, DO-214AC (SMA) package, AEC-Q101 qualified.

$0.3800Ref. price · indicative, final on quote
Diodes Incorporated SMAJ28AQ-13-F datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ28AQ-13-F specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown31.1V
Voltage - clamping (Max) @ ipp45.4V
Voltage - reverse standoff28V
Current - peak pulse (10/1000μs)8.8A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C ~ 150°C (TJ)
GradeAutomotive
PackageTape & Reel (TR) Cut Tape (CT)
QualificationAEC-Q101
CaseDO-214AC, SMA
Unidirectional channels1

Product details

Automotive-grade transient suppression for 28V rails

The SMAJ28AQ-13-F: It clamps transients at 45.4V maximum while conducting 8.8A peak pulse current — the clamping voltage is what the downstream IC actually sees, so a 28V-rated rail needs a TVS whose clamp stays below the IC's abs-max rating. The -55°C to 150°C junction temperature range covers under-hood and engine-bay deployment where ambient can hit 125°C with self-heating margin.

Package and board-fit for automated assembly

Housed in a DO-214AC (SMA) surface-mount package, the SMAJ28AQ-13-F uses the standard SMA footprint with the cathode band marking orientation.

Frequently asked questions

How can I order SMAJ28AQ-13-F or check current availability?

SMAJ28AQ-13-F is an active part sourced through independent distribution.