1.5 kW bidirectional transient suppressor — DO-214AB SMC
The SMCJ18CA-13 is a 1500 W (1.5 kW) bidirectional TVS diode from Diodes Incorporated, built on a Zener clamping structure. It is designed to clamp transients on signal or DC power rails where polarity is unknown or where a single device must handle both positive and negative surges. The 20 V minimum breakdown voltage ensures the device starts conducting before the protected circuitry sees damaging overvoltage.
Package and board-fit — DO-214AB SMC
Housed in the DO-214AB (SMC) surface-mount package, the SMCJ18CA-13 occupies a standard footprint with a JEDEC-registered outline. The SMC body handles the 1.5 kW pulse without exceeding the junction temperature rating of -55°C to 150°C (TJ). Store the reels in a dry environment; the SMC package is not moisture-sensitive per JEDEC level 1, but long-term humidity exposure can affect solderability.
Sourced through authorized distribution channels. No pin-compatible second-source is listed on the Diodes cross-reference, but the SMCJ18CA-13 is a standard JEDEC part number — many TVS manufacturers offer a functionally equivalent device with the same electrical ratings.