The SMAFJ9.0A with 15.4V 10V 9V SMA-F TVS ROHS, manufactured by Jingdao, is a surface mount transient voltage suppressor device. It provides protection against transient voltage pulses commonly caused by electrical fast transients (EFT) and electrostatic discharge (ESD). It is designed with a SMA-F package for easy mounting on circuit boards. The device is rated for peak pulse power of 9.0A (tp=8/20 microseconds) and has standoff voltages of 15.4V, 10V, and 9V, respectively. This device is also RoHS compliant, meaning that its components are free from hazardous materials often used in electronics production.