The SMAJ12CA with TVS SMA RoHS manufactured by TWGMC is an electronic component that utilizes Transient Voltage Suppression (TVS) protection technology to protect other components in a circuit. It has a bidirectional structure, which means it will contain two terminals, one each connected to both ends of the circuit. The main purpose of the component is to protect sensitive electronic parts, including components such as semiconductors, by creating a high impedance protection barrier against transient voltage spikes. This allows the circuit to be safe from voltage spikes that could cause circuit damage, and provides unmatched ESD protection. With its RoHS rating, it is also compliant with the Restriction of Hazardous Substances directive, reducing environmental pollution.