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Diodes Incorporated SMAJ14AQ-13-F — Circuit Protection

SMAJ14AQ-13-F TVS Diode, 400W, 14V, DO-214AC, AEC-Q101

MPNSMAJ14AQ-13-F
Active

Diodes Incorporated SMAJ14AQ-13-F, Automotive Zener TVS Diode, 400W Peak Pulse Power, 14V Reverse Standoff, Unidirectional, DO-214AC SMA Package, Tape & Reel.

$0.3800Ref. price · indicative, final on quote
Diodes Incorporated SMAJ14AQ-13-F datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ14AQ-13-F specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown15.6V
Voltage - clamping (Max) @ ipp23.2V
Voltage - reverse standoff14V
Current - peak pulse (10/1000μs)17.2A
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 protection for 14V rails

The SMAJ14AQ-13-F: It operates from -55°C to 150°C junction temperature, covering under-hood and cabin environments. The 14V standoff voltage sits just above a nominal 12V battery line, so the diode stays transparent during normal operation and only clamps when a transient pushes the rail above 15.6V breakdown.

Housed in a DO-214AC (SMA) surface-mount package — the same footprint as standard SMA diodes, so no layout change if swapping from a generic SMAJ14A. No power line protection feature — this is a unidirectional TVS for signal or low-side power rail clamping, not for AC mains. The single unidirectional channel protects one rail per device.

The base product number is SMAJ14, and the full order code SMAJ14AQ-13-F includes the automotive Q-grade suffix.

Frequently asked questions

Where can I buy SMAJ14AQ-13-F and how is it quoted?

Submit an RFQ for a firm price and lead time.

What compliance documentation does Diodes Incorporated provide for SMAJ14AQ-13-F?

The part is AEC-Q101 qualified for automotive applications. RoHS and REACH compliance documentation is available from Diodes Incorporated upon request.