26V reverse standoff, 1.5 kW clamp — the surge rating that sets the protection floor
The SMCJ26CE3/TR13 is a bidirectional Zener TVS diode from Microchip Technology, rated for 1.5 kW peak pulse power (10/1000 µs) with a reverse standoff voltage of 26 V. That standoff means it blocks continuous 26 V DC lines without leakage, then clamps transients at 46.6 V maximum when the surge hits 32.2 A. The 28.9 V minimum breakdown voltage is the trigger point — the part starts conducting and shunting energy away from the protected circuit. No need to orient the part on the board — the symmetry simplifies layout.
Housed in a DO-214AB (SMC) surface-mount package, the same footprint used across the SMCJ series.
Active status — no end-of-life watch needed
Microchip lists the product status as Active.