The SMAJ11A is an 18.2V/12.2V/11V transient voltage suppressor (TVS) manufactured by Yageo. It features a small form factor of SMA (DO-214AC), and is RoHS compliant. Applications of the part include surge/ESD protection, power supply line protection, and data line protection. It is designed to absorb and dissipate very high energy pulse of up to 400W. The clamping voltage is 33.2V for an 18/20µs waveform. The device is rated for a maximum operating temperature of 175°C.