SEREB® SB Type Thermal Protector
SEREB® is a thermal protector integrated into the battery cells of various portable electronic devices. It interrupts the current flow in the event of overheating or when over-current causes self-generation of abnormal heat levels. In these situations, the rise in temperature will cause the bimetal element within the protector to reverse, shunting the conductive line to the PTC ceramic. The bimetal element remains reversed until there is a sufficient voltage drop.