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Microchip Technology SMAJ14AE3/TR13 — Circuit Protection

SMAJ14AE3/TR13 Zener TVS Diode – 500W, 14V, DO-214AC

MPNSMAJ14AE3/TR13
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Microchip Technology SMAJ14AE3/TR13, Zener TVS Diode, 500W Peak Pulse Power, 14V Reverse Standoff Voltage, DO-214AC (SMA) Package, Tape & Reel

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ14AE3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ14AE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown15.6V
Voltage - clamping (Max) @ ipp23.2V
Voltage - reverse standoff14V
Current - peak pulse (10/1000μs)21.5A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

14V rail clamp in a DO-214AC footprint

It delivers 500W peak pulse power per the 10/1000µs waveform, with a clamping voltage of 23.2V at the rated 21.5A peak pulse current. The DO-214AC (SMA) package suits reflow assembly and keeps the footprint small for dense PCB layouts.

Breakdown and clamping margins

Minimum breakdown voltage is 15.6V, giving a guard band above the 14V reverse standoff. The 23.2V clamp at 21.5A Ipp means the protected circuit sees less than 24V during a surge — a typical margin for 16V-rated downstream components. Unidirectional, single-channel configuration simplifies routing on a single supply rail.

Frequently asked questions

Is SMAJ14AE3 a suitable replacement for SMAJ14A?

The suffix on SMAJ14AE3 indicates Microchip's lead-free / RoHS-compliant finish. Electrically the two are identical — same 14V standoff, same 500W peak pulse rating, same DO-214AC package. If your BOM calls out SMAJ14A, the variant drops in as a direct replacement with no change in clamping performance.

What does the suffix in SMAJ14AE3 mean?

The suffix designates a lead-free / RoHS-compliant termination finish. It does not affect electrical ratings — the device is electrically identical to the standard SMAJ14A part.

Is SMAJ14AE3 RoHS compliant?

Yes, the suffix indicates RoHS compliance. The part is lead-free and meets the current RoHS directive requirements.