The TISP4070M3AJ from Bourns is a Bidirectional Thyristor Overvoltage Protector designed to provide 2-point protection of 2-wire telecommunication equipment. It has a break-over voltage of up to 70 V and a break-over current of less than 0.6 A. This IEC 61000-4-5-certified thyristor allows multiple devices to be configured for multi-point protection. It consists of a symmetrical voltage-triggered bidirectional thyristor that guarantees voltage limit and withstands the listed international lightning surges in both polarities. This RoHS-compliant thyristor is available in a surface-mount package.