3-electrode GDT
DatasheetThe 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 |
