The 38.100.205-001 from CPE Italia S.p.a. is a RF Surge Protector with Frequency DC to 11 GHz, Operating Voltage 90 V(Gas Capsule), Surge Current 20 kA, Voltage Level 100 to 500 V(Sparkover Voltage). Tags: Gas Discharge Tube. More details for 38.100.205-001 can be seen below.