The TPCM1213A-01SO is a SOT-23 ESD protection device manufactured by TECH PUBLIC. It is specifically designed to protect sensitive electronic components from electrostatic discharge (ESD). It is ROHS (Restriction of Hazardous Substances) compliant, meaning it is made of substances which are not harmful to human health or the environment. This device is designed to provide up to 1.5kV of ESD protection and is able to withstand continuous voltages up to 20V. It is also able to be used in a variety of applications, including mobile devices, remote communication systems, computers, and consumer electronics.