SMAJ8.5CA-Q is a bidirectional transient voltage suppressor diode designed for surge and ESD protection in compact SMA (DO-214AC) surface mount package. The device features a working peak reverse voltage of 8.5 V, breakdown voltage range of 9.44 to 10.4 V, and a maximum clamping voltage of 14.4 V at the rated peak pulse current. With a peak pulse power dissipation of 400 watts and typical response times less than 1.0 picosecond from 0 V to breakdown voltage, this device provides fast transient suppression. The SMAJ8.5CA-Q is RoHS and AEC-Q101 compliant, making it suitable for protection of power buses, I/O interfaces, and overvoltage transient protection in telecom, computer, industrial, and consumer electronics applications.