The TB0640H-13-F from Diodes Incorporated is a Bidirectional Thyristor that has been designed for surge protection applications. It has a break-over voltage of up to 77 V and a break-over current of less than 50 A. This silicon-controlled rectifier (SCR) can handle a maximum pulse current of 100 A for a duration of 10/1000 μs and a peak pulse current of 400 A for a duration of 8/20 μs. It consists of an oxide-glass passivated junction, which allows it to withstand voltages between 58 V and 320 V. This SCR offers bidirectional protection in a single device and has high off-state impedance with low on-state voltage. It is designed to help equipment meet various standards such as GR-1089-CORE, IEC 61000-4-5, FCC Part 68, ITU-T K.20/K.21, and UL497B. This RoHS-compliant SCR is available in a surface-mount package that measures 4.57 x 3.94 x 2.50 mm.