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Diodes Incorporated SMAJ18CAQ-13-F — Circuit Protection

SMAJ18CAQ-13-F Diodes Inc TVS Diode, 400W, 18V, AEC-Q101

MPNSMAJ18CAQ-13-F
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Diodes Incorporated SMAJ18CAQ-13-F, Automotive Zener TVS Diode, 400W Peak Pulse, 18V Reverse Standoff, Bidirectional, DO-214AC SMA Package, AEC-Q101 Qualified.

$0.4200Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ18CAQ-13-F specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown20V
Voltage - clamping (Max) @ ipp29.2V
Voltage - reverse standoff18V
Current - peak pulse (10/1000μs)13.7A
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
Bidirectional channels1

Product details

Automotive-grade transient suppression for 18V signal rails

The SMAJ18CAQ-13-F: It clamps transients at 29.2 V max while conducting 13.7 A peak pulse current.

Bidirectional clamping and package fit

Single bidirectional channel with a 20 V minimum breakdown voltage — one device protects both positive and negative transients on a data or signal line, saving board space versus two unidirectional parts. Housed in the DO-214AC (SMA) surface-mount package, it shares the standard footprint of the SMAJ family. The tape-and-reel supply supports automated pick-and-place for volume assembly. No power line protection means this TVS is intended for signal and low-power data lines, not for DC power buses or AC mains.

Frequently asked questions

Where can I buy SMAJ18CAQ-13-F?

Sourced through independent distribution.