The SC85AAA Thermal Cutoffs 85C Reinforced Cover SMD HC TCO manufactured by Bourns is an electronic part designed to protect against risky or hazardous situations that arise from uncontrolled overcurrent or overheating. This part automatically disconnects from the power supply when the temperature rises above 85C to prevent further damage to the component. It is an SMD (Surface Mount Device) made with a reinforced cover for added protection and features a High Current (HC TCO) rating of up to 16 Amps.