The B72207S0251K211V87 is a varistor manufactured by TDK. It is a through-hole varistor with a rated voltage of 250V and RoHS compliant. The body size measures 7.2mm x 20.7mm and it has a lead spacing of 2.5mm x 11mm. The features of this part include: low loss, wide operating temperature range of -40°C to 125°C, low noise, high reliability, high surge capacity, and high surge current capacity. Additionally, this part is UL Recognized, CSA recognized, and AAA certified.