SMAJ45CA is a bidirectional transient voltage suppressor diode designed for surge and ESD protection in portable communications, computing, and video equipment. It features a working peak reverse voltage of 45 V, breakdown voltage range of 50.2 to 52.3 V, and a peak pulse power dissipation of 400 watts at 1 ms pulse width. The device is housed in a compact DO-214AC (SMA) surface mount package with dimensions of 2.70 mm (max) length, operates over a temperature range of -55°C to +150°C, and provides fast response times for transient suppression. It is RoHS compliant and UL recognized, making it suitable for IEC 61000-4-2 ESD (Level 4), IEC 61000-4-4 EFT, and IEC 61000-4-5 surge protection applications.