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VI3-18/32

PULSE RECTIFIER TUBE

The VI3-18/32 rectifier tube is used as a clipping, protective, charging and rectifying diode in stationary and mobile RF equipment

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: glass-to-metal.
Anode cooling: forced air.
Height: at most 305 mm.
Diameter: at most 83 mm.
Mass: at most 600 g

vi3-18[32(1)00071.jpg

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 5-600
acceleration, m/s² 98
Multiple impacts with acceleration, m/s² 343
Ambient temperature, °C -60 to +85
Relative humidity at up to +40 °C, % 98

BASIC DATA
Electrical Parameters
Heater voltage, V 17
Heater current, A 4.6-5.6
Peak anode current (at anode voltage charge 5 kV), A, at least 18
Anode-cathode capacitance, pF, at most 12
Peak anode current over 750 h of service, A, at least 14.5

Limit Operating Values
Heater voltage, V 15.5-18.5
Reverse voltage, kV:
pulse 32
in rectification mode 30
Peak anode current, A 18
Anode current in rectification mode
(peak value), mA
1
Anode current in rectification mode (average value), mA 200
Anode dissipation, W 75
Electrical charge of pulse, A-µs 50
Pulse duration, µs 10
Warm up time, s, at most 120
Anode temperature, °C 150

vi3-18[32(2)00081.jpg
Averaged Anode Characteristic Curve:
Uf = 17V

vi3-18[32(2)00082.jpg
Characteristic Curves Showing Cooling Air Flow Rate versus Anode Dissipation (at anode temperature Ta 150°C)