The 38.109.206-031 from CPE Italia S.p.a. is a RF Surge Protector with Frequency DC to 11 GHz, Operating Voltage 230 V(Gas Capsule), Surge Current 10 kA, Voltage Level 100 to 500 V(Sparkover Voltage). Tags: Gas Discharge Tube. More details for 38.109.206-031 can be seen below.