SMCJ20A is a Transient Voltage Suppressor Diode designed for surge and ESD protection in portable communications, computing, and video equipment. This unidirectional device features a Working Peak Reverse Voltage of 20 V and a Breakdown Voltage of 22.2 V, with a maximum reverse leakage current of 5 A at the rated voltage. The device is housed in a compact SMC (DO-214AB) surface mount package and delivers a peak pulse power dissipation of 1500 watts at 1 ms pulse width, with a steady-state power dissipation of 5.0 watts at 75°C. Operating across a temperature range of -55°C to +150°C, the SMCJ20A provides fast response times of less than 1.0 ns and is RoHS compliant with lead-free termination, making it ideal for modern electronic protection circuits requiring reliable transient suppression in compact form factors.