The B88069X4781S102 is a Gas Discharge Tube (GDT) or Gas Plasma Arrestor manufactured by TDK, suitable for high voltage signal and telecom protection applications. The device features a surge rating greater than 8 kV, with an insulation resistance rating of 1 GO at 250 VDC, as well as a response time of less than 1 ns. The GDT also features high environmental resistance, including shock, humidity, and temperature. Additionally, the device is UL approved, with a flame class rating of UL-94V-0.