The SMAJ12CA with 19.9V 13.3V 12V SMA TVS ROHS is a surface-mount double line unidirectional Transient Voltage Suppressor (TVS) manufactured by Leiditech. It is designed to protect sensitive electronic components from voltage spikes caused by Electrostatic Discharge (ESD), Electro-Magnetic Interference (EMI), or surge events. This device has a lead-free, RoHS-compliant, SMT package that allows it to be easily mounted on a PCB or other surface. It features a maximum peak pulse power dissipation of 1.5kW, fast response time of 1 nanosecond, and an ESD rating of up to 15kV. The SMAJ12CA is suitable for automotive, consumer, medical, and other applications that require protection from voltage overshoot or transients.