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Microchip Technology SMCJ14CAE3/TR13 — Circuit Protection

SMCJ14CAE3/TR13 TVS Diode – 1500W Bidirectional, DO-214AB

MPNSMCJ14CAE3/TR13
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Microchip Technology SMCJ14CAE3/TR13, Zener TVS diode, bidirectional, 1500 W peak pulse power, 14 V reverse standoff, DO-214AB (SMC) surface-mount package, Tape & Reel.

$0.5850Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMCJ14CAE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown15.6V
Voltage - clamping (Max) @ ipp23.2V
Voltage - reverse standoff14V
Current - peak pulse (10/1000μs)64.7A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

Transient protection for 12 V rails — 1500 W in a single bidirectional device

Breakdown starts at 15.6 V (min), and clamping is specified at 23.2 V (max) when the peak pulse current reaches 64.7 A. The 8 V window between standoff and clamp gives the downstream regulator or IC a defined overvoltage ceiling — a tighter window than some generic 1.5 kW TVS parts, which matters when the protected device has a 30 V absolute maximum rating.

Package and temperature range — board-fit notes

The DO-214AB (SMC) package is a standard JEDEC outline with a copper tab on the cathode side — the PCB land pattern should follow the manufacturer's recommended pad geometry to keep the thermal impedance low during a surge event. The 1.5 kW rating is derated above 25°C per the datasheet curve; at 125°C junction, the peak pulse power typically drops to about 75% of the 25°C value.

Frequently asked questions

Is SMCJ14CAE3/TR13 equivalent to SMCJ14A?

The SMCJ14A is a unidirectional version of the same base part (SMCJ14), while the SMCJ14CAE3/TR13 is bidirectional. The breakdown and clamp voltages are identical — 15.6 V min breakdown, 23.2 V max clamp — but the unidirectional SMCJ14A only protects one polarity. If your circuit needs protection on both a positive and negative rail relative to ground, the bidirectional SMCJ14CAE3/TR13 replaces two unidirectional parts. For a single-polarity rail, the SMCJ14A is the simpler fit.