SMCJ45CA is a bidirectional transient voltage suppressor diode designed for surge and ESD protection in portable communications, computing, and video equipment. The device features a working peak reverse voltage of 55.8 V, breakdown voltage of 47.8 V, and is housed in a compact DO-214AB (SMC) surface mount package. It delivers a peak pulse power dissipation of 1500 watts with a peak forward surge current of 200 amps (8.3 ms single half sine wave), and operates reliably across a temperature range of -55°C to +150°C. The SMCJ45CA provides fast response times and conforms to IEC 61000-4-2 ESD (Level 4), IEC 61000-4-4 EFT, and IEC 61000-4-5 Surge standards, making it ideal for protecting sensitive electronic circuits from transient overvoltage events.