SMAJ9.0A is a unidirectional transient voltage suppressor diode designed for surge and ESD protection in portable communications, computing, and video equipment. It features a compact surface mount SMA (DO-214AC) package with a standoff voltage of 9.0 V and a maximum breakdown voltage of 10.0 V, providing fast response times of less than 1.0 ns for effective transient suppression. The device is rated for 400 watts peak power dissipation and offers a maximum reverse voltage rating of 9.0 V with a maximum reverse current of 15.4 A. This component is lead-free and RoHS compliant, making it suitable for modern electronic designs requiring reliable protection against voltage transients in compact form factors.