3-electrode GDT
BT 500/20
Part Number: 9290022
- 3-electrode GDT
- No radiactive
- Use in connection blocks and holders
- ITU-K12 compliant
- Available in version for PCB mounting (BT S and BT R series)
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).
DC sparkover voltage (100V/s) | 400-600 V | |
DC spark voltage tolerance (100V/s) | +/- 20% | |
Maximum impulse sparkover voltage (1kV/µs) | <1100 V | |
Nominal discharge current | In | 20 kA |
Total Maximum discharge current | Imax Total | 25 kA |
Max. capacitance | C | <0.9 pF |
Insulation resistance | IR | ≥10 GOhms |
Arc Voltage | ≤ 25 V | |
Glow-to-arc transition current | 0.5 A | |
Glow voltage | ≤ 100 V | |
AC discharge current (50Hz) | 20 A | |
DC Holdover voltage | >80 V |
Technology | Gas discharge tube | |
Operating and storage temperature | -40°C / +90°C | |
Dimensions | See diagram |
Standards compliance | ITU-T K12 rec. | |
Certification | UL | |
RohS compliance | Yes |