SMAJ22A-Q is a unidirectional transient voltage suppressor diode designed for surge and ESD protection in compact SMA (DO-214AC) surface mount package. It features a breakdown voltage range of 24.2 to 26.9 volts with a working peak reverse voltage of 26.9 V, providing reliable overvoltage transient protection. The device delivers a peak pulse power dissipation of 400 watts with a maximum peak pulse current of 35.5 A at 10/10000 µs pulse conditions and a maximum clamping voltage of 11.3 V. With typical fast response times of less than 1.0 picosecond from 0 V to breakdown voltage and an operating temperature range of -55°C to +150°C, the SMAJ22A-Q is ideal for protecting power buses, I/O interfaces, and sensitive electronics in telecom, computer, industrial, and consumer applications. The device is RoHS compliant and AEC-Q101 qualified for automotive-grade reliability.