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VI1-50/25

PULSE RECTIFIER TUBE

The VI1-50/25 rectifier tube is used as a clipping, protective, charging and rectifying diode in stationary and mobile RF equipment

GENERAL
Cathode: indirectly heated, sintered, oxide-coated.
Envelope: glass-to-metal.
Height: at most 180 mm.
Diameter: at most 85 mm.
Mass: at most 800 g

vi1-50[25(1)00051.jpg

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 5-600
acceleration, m/s² 75
Multiple impacts at impact duration up to 80 ms with acceleration, m/s² 343
Ambient temperature, °C -60 to +125
Relative humidity at up to +40 °C, % 98

BASIC DATA
Electrical Parameters
Heater voltage, V 12.6
Heater current, A 7-8.5
Peak anode current (at anode voltage 5 kV, pulse duration 2-4 µs, 1/duty factor 1,000), A, at most 70
Anode-cathode capacitance, pF, at most 30
Peak anode current over 500 h î service, A, at least 40

Limit Operating Values
Heater voltage, V 11.4-13.8
Peak reverse voltage, kV 25
Peak reverse voltage (peak value in protection, rectification and charging modes), kV 16
Peak anode current, A 50
Anode current (average value, in clipping and protection modes), mA 100
Anode current (peak value, in rectification and charging modes), A 2
Anode current (average value, in rectification and charging models), A 0.5
Anode dissipation, W 300
Electrical charge of pulse, A-µs 300
Pulse duration, µs 10
Peak reverse voltage 1/duty factor 300
Warm up time, s:
at heater voltage 12.6 V 120
at heater voltage 15V 60
Anode temperature, °C 150

vi1-50[25(2)00061.jpg
Averaged Anode Characteristic Curve:
Uf = 12.6V

vi1-50[25(2)00062.jpg
Characteristic Curves Showing Cooling Air (Gb) Flow Rate versus Anode Dissipation (Pa)