1500 W surge protection for 20 V rails
The SMCJ20CA-13-F: At that pulse condition it clamps at 32.4 V maximum while conducting 46.3 A peak pulse current. The 20 V reverse standoff voltage (working voltage) means it sits across a 20 V DC rail without conducting leakage; the 22.2 V minimum breakdown voltage defines where avalanche begins. Bidirectional construction (one channel) lets a single device protect both positive and negative transients on the same line — useful for AC-coupled signals or power rails where reverse polarity events are possible. The -55°C to 150°C junction temperature range covers industrial enclosures and under-hood automotive ambient without derating the peak power at the high end.
DO-214AB SMC package — footprint and board-fit
Housed in the DO-214AB (SMC) package, surface-mount, with the supplier device package also designated SMC. This is the standard footprint for 1500 W TVS diodes in this power class — the copper pad area under the cathode tab sets the junction-to-ambient thermal resistance. The tape-and-reel and cut-tape options accommodate both prototyping and production reel quantities. No power line protection (the part does not have internal crowbar or foldback circuitry) — it is a straight shunt clamp. The Zener type designation confirms the avalanche breakdown mechanism rather than a silicon-avalanche diode (SAD) or thyristor structure.
Active lifecycle — no near-term EOL risk
Product status is Active per Diodes Incorporated. For a BOM line carrying this order code, there is no end-of-life notice to track. The base product number SMCJ20 covers the family; the -13-F suffix indicates the tape-and-reel packaging and the lead-free / RoHS-compliant finish.