SMCJ150A is a transient voltage suppressor diode designed for surge and ESD protection in portable communications, computing, and video equipment applications. The device features a working peak reverse voltage of 150V with a breakdown voltage of 178V, housed in a compact DO-214AB (SMC) surface mount package. It delivers peak pulse power dissipation of 1500 watts at 1 ms pulse width and steady-state power dissipation of 5.0 watts at 75°C lead temperature, with a peak forward surge current rating of 200 amps. The diode exhibits fast response times and operates reliably across a temperature range of -55°C to +150°C, making it ideal for protecting sensitive electronic circuits from transient voltage events in demanding portable and computing applications.