3-electrode GDT
BT 90/20
BT 90/20
Part Number: 9290001
  • 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).



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10 x 8/20µs impulses
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) <640 V
DC sparkover voltage ((100V/s) 72-108 V
Holdover voltage
R = 300 ohms in serie R = 150 ohms; 100nF en parrallel)
>70 V
 
Technology Gas discharge tube
Dimensions
see diagram
Standards compliance UIT-T-K12 rec. / IEC 61643-311
RohS compliance False