Solutions The SMAJ170CA with 275V 189V 170V SMA(DO-214AC) TVS ROHS is a RoHS compliant surface-mount transient voltage suppressor diode manufactured by SMC Diode Solutions. It is designed to offer protection from voltage spikes and transients that occur in automotive, telecom, industrial and medical applications. It has a maximum reverse stand-off voltage of 275 volts, a breakdown voltage of 189 volts, and a clamping voltage of 170 volts. It has low-forward voltage drop with high surge current capability. It is packaged in the DO-214AC (SMA) package with high temperature soldering of 260 °C.