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Diodes Incorporated SMAJ43CAQ-13-F — Circuit Protection

SMAJ43CAQ-13-F Diodes Inc TVS, 400W, AEC-Q101, DO-214AC

MPNSMAJ43CAQ-13-F
Active

Diodes Incorporated SMAJ43CAQ-13-F, Automotive AEC-Q101 Zener TVS, 400W peak pulse, 43V reverse standoff, 69.4V clamping, bidirectional, DO-214AC SMA, Tape & Reel.

$0.1154Ref. price · indicative, final on quote
Diodes Incorporated SMAJ43CAQ-13-F datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ43CAQ-13-F specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101
MountingSurface Mount
Voltage - breakdown47.8V
Voltage - clamping (Max) @ ipp69.4V
Voltage - reverse standoff43V
Current - peak pulse (10/1000μs)5.7A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AC, SMA
Bidirectional channels1

Product details

AEC-Q101 TVS for 12V/24V automotive bus clamping

The SMAJ43CAQ-13-F: The 43V standoff voltage sits above a 24V nominal bus (including load-dump transients up to 36V), so the TVS remains transparent during normal operation and only clamps when the line exceeds the breakdown threshold of 47.8V min.

Housed in a DO-214AC (SMA) surface-mount package, the SMAJ43CAQ-13-F uses the standard JEDEC footprint with a cathode band on the body — the bidirectional construction means polarity marking is for orientation only, not electrical function.

For BOM redundancy, confirm the DO-214AC footprint and 43V standoff with an alternative supplier's equivalent series.

Frequently asked questions

What automotive qualification does SMAJ43CAQ-13-F carry?

It is AEC-Q101 qualified, which covers the stress tests and reliability requirements for automotive-grade discrete semiconductors, including the -55°C to 150°C operating temperature range.