3-electrode GDT
BT 500/20
BT 500/20
Part Number: 9290022
  • 3-electrode GDT
  • No radiactive

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
10 x 8/20µs impulses following ITU-T K12 rec.
20 kA
Total Maximal discharge current
max. total withstand @ 8/20 µs
25 kA
Max. shunt capacitance <0.9 pF
AC discharge current (50Hz)
20 A
Insulation resistance
≥10 GOhms
Impulse sparkover voltage (1kV/µs) <1100 V
DC sparkover voltage (100V/s)
400-600 V
Holdover voltage
R = 300 ohms in serie R = 150 ohms; 100nF en parrallel)
>80 V
Technology Gas discharge tube
Dimensions
See diagram
RohS compliance
False
Standards compliance
UIT-T-K12 rec. / IEC 61643-311