SMCJ170A 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 170 V, breakdown voltage of 196 V, and peak pulse power dissipation of 1500 watts with a pulse width of 1 ms. It is housed in a compact SMC (DO-214AB) surface mount package with lead-free, RoHS-compliant construction, offering fast response times and reliable transient protection. The device operates over a temperature range of -55°C to +150°C and is ideal for protecting sensitive electronic circuits from voltage transients and electrostatic discharge events.