MCR12NG is an automotive-grade bi-directional TVS diode from Littelfuse. It is a transient voltage suppressor (TVS) diode, designed for use in automotive electrical systems for protection against overvoltage transients. It is designed to protect sensitive electronic components from high-voltage transients, which can occur during electrical disturbances, loaded inductive switching, and other high-energy events. The diode has a maximum operating voltage of 12 volts, and it is designed to operate at a wide temperature range of –55°C to +150°C. MCR12NG is available in a variety of package styles and sizes, offering excellent thermal performance, mechanical robustness, and durability.