Bidirectional thyristor surge protectors lower breakover voltage

BOURNS Model TISP4011H1BJ bidirectional overvoltage protectors provide very low breakover voltage. Designed to limit damaging overvoltage threats, device provides optimized 2-point protection for transformer windings, low voltage electronics and digital telecommunication lines. Devices provide low V(bo) breakover voltage of 10.5V, which allows designers to protect lines of working voltages up to 5.25V. http://www.bourns.com/products/circuit-protection/thyristor-surge-protectors