1.5 kW bidirectional TVS for general-purpose rail protection
The 1.5SMC13CA-E3/9AT: Its 11.1 V reverse standoff voltage and 12.4 V minimum breakdown threshold make it a fit for protecting 12 V nominal supply rails against transient overvoltage events. The 1500 W rating is the power it can absorb in a single pulse — useful for industrial control, telecom, and general-purpose DC rail clamping where a single bidirectional device replaces two unidirectional diodes in antiparallel.
The 18.2 V clamping voltage at 82.4 A (10/1000 µs) tells you the maximum voltage the protected load sees during a surge. For a 12 V rail with a 15 V abs-max input rating, the 18.2 V clamp is above the safe operating area — this part is better suited for rails that tolerate up to 20 V transients, or where a downstream LDO or DC-DC has its own 20 V+ input rating. Operating temperature spans -65°C to +150°C junction, covering the full industrial and automotive ambient range. The DO-214AB (SMC) package footprint is shared with the SMCJ industry standard — the same land pattern serves both, simplifying PCB layout if you later switch unidirectional variants.
Active lifecycle and sourcing posture
The Tape & Reel packaging suits automated pick-and-place assembly for volume production runs.