TVS Selection: Why the 1500W Rating Matters
The SMCJ13AE3/TR13 is a unidirectional Zener TVS diode from Microchip Technology, rated for 1500W (1.5kW) peak pulse power at 10/1000µs waveform — this is the energy it can clamp without failing, not a continuous rating. The 13V reverse standoff voltage means it sits across a 12V rail and stays off until a transient pushes above 14.4V breakdown. The clamping voltage at peak current is 21.5V, which sets the upper limit the downstream circuitry must survive.
Package and Mounting: DO-214AB (SMC) on Reel
The operating temperature range spans -65°C to 150°C, so it handles soldering reflow and high-ambient environments without derating the pulse capability.
The base product number is SMCJ13, and the - suffix indicates lead-free / RoHS-compliant finish.