SMBJ64A-Q is a bidirectional transient voltage suppressor diode designed for surge and ESD protection applications in compact SMB (DO-214AA) surface mount package. It features a working peak reverse voltage of 64V with a breakdown voltage range of 71.1V to 78.6V, and delivers 600W peak power dissipation capability. The device exhibits fast response times of less than 1.0 picosecond from 0V to breakdown voltage, with a maximum clamping voltage of 103V and reverse leakage current of 5.9µA at rated voltage. This automotive-grade, AEC-Q101 compliant component is ideal for protecting power buses, I/O interfaces, and sensitive electronics in telecom, computer, industrial, and consumer applications requiring robust transient protection.