3-electrode GDT
BT 500/20
BT 500/20
Part Number: 9290022
  • 3-electrode GDT
  • No radiactive
Contact Us
The BT serie is a range of 3-electrode Gas Discharge Tubes designed by CITEL with ceramic and non-radioactive technology. This range is available without leads (contact on side electrodes: BT type) to fit in standard connectors blocks or holders. Versions with leads, radial leads (BTR version) or axial leads (BTS version) for PCB mounting. BT gas tubes can be supply with a fail-safe mechanism (BTC version). BT are available in a large range of DC sparkover voltages and are in compliance with international standards (ITU-T rec. K12).
Nominal discharge current In 20 kA
Total Maximal discharge current Imax Total 25 kA
Max. capacitance C <0.9 pF
DC sparkover voltage (100V/s) 400-600 V
Insulation resistance IR ≥10 GOhms
Maximum impulse sparkover voltage (1kV/µs) <1100 V
AC discharge current (50Hz) 20 A
DC Holdover voltage >80 V
Technology Gas discharge tube
Dimensions See diagram
Standards compliance UIT-T-K12 rec. / IEC 61643-311
RohS compliance Yes