SMAJ130A is an unidirectional thyristor surge protection device (TVS) with 209V, 144V, and 130V ratings manufactured by Jingdao. It is a surface mount device (SMA) and is compliant with RoHS standards.The SMAJ130A is designed to protect circuits from the damaging effects of voltage and current surges, and transients. It has low capacitance, fast response times, and a bidirectional flow of current. It provides great over-voltage protection by quickly conducting excess electricity away from the circuit. It also works to prevent reverse current leakage. The device is intended for use in automotive, telecommunications, and industrial electronics applications.