NL-5557 type thyratron
NL-5557 type thyratron is a glass-shell structure, direct-heating oxide cathode, natural cooling mercury-filled thyratron, mainly used for the protection of small and medium-sized power high-frequency equipment, spark-proof circuits, stable quality and high reliability .
General performance and mechanical performance |
Parameter |
Unit |
Weight |
100 |
g |
Hight |
≤152 |
mm |
Installation Location |
Axial vertical installation |
|
Ambient temperature |
5 to 50 |
℃ |
Cooling condition |
Natural cooling |
|
Service life |
≥500 |
h |
Electrical parameters |
Rated value |
Unit |
Filament voltage |
2.5 |
V |
Filament current |
5 |
A |
Tube Voltage drop |
10 |
V |
Anode-grid capacitance |
1.8 |
pF |
Positive anode peak voltage |
2500 |
V |
Peak reverse anode voltage |
5000 |
V |
Average anode current |
0.5 |
A |
Peak anode current |
40 |
A |
Ignition voltage |
100 to 500 |
V |
Anode Current when Grid voltage=0 |
10 |
A |
Ionization time |
10 |
μS |
Deionization time |
1000 |
μS |
Frequency |
25 |
Hz |
The main parameters3
Electrical parameters Limit value |
Min. |
Max. |
Unit |
Filament voltage |
2 |
3 |
V |
Filament current |
4.5 |
5.5 |
A |
Anode voltage |
|
2500 |
V |
Anode current |
0.5 |
40 |
A |
Filament voltage |
2.5 |
V |
Filament current |
5 |
A |
Grid voltage |
-15 |
V |
Anode voltage |
1000 |
V |