The SMFJ22CA with SOD-123F TVS ROHS is a surface mount, bi-directional, Transient Voltage Suppressor manufactured by Bourne. It has a maximum peak pulse power rating of 600 Watts and a working voltage range of 5.0 to 170 Volts. It is a RoHS compliant device, meaning that it is free from hazardous materials and uses the SOD-123F case type for easy mounting. The device provides protection for circuit components from damaging overvoltages caused by electrostatic discharge (ESD), inductive-load switching, and lightning. It is designed for use in portable and handheld computers, cell phones, PDAs, and other sensitive electronics.