VI150/25
PULSE RECTIFIER TUBE
The VI150/25 rectifier tube is used as a clipping, protective, charging and rectifying diode in stationary and mobile RF equipment
GENERAL
Cathode: indirectly heated, sintered, oxidecoated.
Envelope: glasstometal.
Height: at most 180 mm.
Diameter: at most 85 mm.
Mass: at most 800 g
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads:  
frequencies, Hz  5600 
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  78.5 
Peak anode current (at anode voltage 5 kV, pulse duration 24 µs, 1/duty factor 1,000), A, at most  70 
Anodecathode capacitance, pF, at most  30 
Peak anode current over 500 h î service, A, at least  40 
Limit Operating Values  
Heater voltage, V  11.413.8 
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, Aµs  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 
Averaged Anode Characteristic Curve:
U_{f} = 12.6V
Characteristic Curves Showing Cooling Air (G_{b}) Flow Rate versus Anode Dissipation (P_{a})