The TB0640M-13-F from Diodes Incorporated is a Bidirectional Surge Protection Silicon Controlled Rectifier that is ideal for power distribution systems, telecommunications, and a wide range of other applications. It has a break-over voltage of up to 77 V and a break-over current of less than 800 mA. This SCR exhibits robust surge protection features, including a 250 A peak pulse current rating at 8/20μs. It features oxide-glass passivated junctions that provide bidirectional protection in a single unit. This lead-free SCR ensures high off-state impedance and low on-state voltage. It is available in a surface-mount package that measures 4.75 x 3.94 mm.