PET3CX15000H3

Drop-in equivalent of 3CX15000H3
Air Cooled Triode For Industrial RF Heating
  • Power Triode Tube Valve
  • Output Power: 40 kW
  • Anode voltage: 12 kV max
  • Anode dissipation: 15 kW max
  • Frequency: 90 MHz max
  • Warranty: 12 months irrespective of number of hours in operation
  • Condition: Brand New
  • Price: Please call +91-9815309603 or email: [email protected]
Superior quality at a lower price with unmatched warranty of 52 weeks with no restriction on the number of hours of operation.
​Manufactured in India, in a world-class facility equipped with high quality machinery, materials and components sourced from reputed suppliers in America, Europe and Japan.

Data Sheet of 3CX15000H3 / PET3CX15000H3

3CX15000H3 is a forced air-cooled, ceramic-metal power triode with a robust mesh filament, for use in industrial radio-frequency heating.
 
Electrical Characteristics of 3CX15000H3 
Filament            .           .           .           .           .           thoriated tungsten
Filament voltage (see note 1)     .           .           .      6.3                V
Filament current            .           .           .           .        160               A
Surge Filament current (peak) (See note 2).        .  800               A
Filament cold resistance .           .           .           .      4.7              mΩ
Peak usable cathode current      .           .           .     35                A
Amplification factor (Va = 2.3 kV, la = 1.0 A)         .  20
Mutual conductance (Va = 2.5 kV, la = 1.3 A).      .  36            mA/V
Inter – electrode capacitances:
Grid to anode    .           .           .           .           .         39                 pF
Grid to filament             .           .           .           .        58                 pF
Anode to filament          .           .           .           .       1.9                pF
 
Mechanical Characteristics of 3CX15000H3
Connections      .           .           .           .           .         Filament leads and grid contact flange
Operating position         .           .           .           .       Vertical, either way up
Maximum operating temperature            .           .   250                OC
Maximum dimensions    .           .           .           .       See outline drawings
Net weight         .           .           .           .           .          6 kg (13 pounds) approx
 
Accessories of 3CX15000H3
Cathode connector        .           .           .           .      CWPA830
 
For frequencies above 2MHz, CWPA830 should be used in conjunction with a strip connection to provide a low inductance cathode return.
 
Cooling        
Sufficient air must be passed through the radiator to keep the temperatures of ceramic to metal seals and of the anode (measured next to the radiator) below the maximum rated value of 250 degree C. The air flows required to maintain seal temperature at 225 degree C in an ambient temperature of 50 degree C and with an operating frequency of less than 30 MHz are shown in the following table.
 
An additional air flow is required for the filament seals. 16ft3/min directed at the centre contact ring, ½ inch below the outer contact ring, through a 1 ½ inch internal diameter air duct at 45 degree to the axis of the tube, is sufficient for operation up to 30 MHz at 50 degree C ambient and 5000 ft altitude.
 
Minimum Radiator Air Flow Requirements
                                                Sea Level                                              5000 Feet        
                                                Pressure                                               Pressure
    Anode                           Air                   Drop                              Air                              Drop
Dissipation                     Flow                 inches                             Flow                            inches
     Watts                       ft3/min                Water                           ft3/min                            Water             

      7500                            361                  1.63                               433                               1.96
     10 000                          606                  3.26                               728                               3.92
     15 000                         1260                 10.0                              1510                              12.0

 
The values given allow for maximum filament and grid dissipation in addition to anode dissipation shown.
 
Radio Frequency Oscillator For Industrial Service
(Class C Conditions, One Tube)
Maximum Ratings (Absolute Values)
Frequency         .           .           .           .           .    90     MHz max
Anode voltage   .           .           .           .           .   12        kV max
Anode current d.c.(see note 3)   .           .           6.0         A max
Anode input power        .           .           .              60       kW max
Anode dissipation         .           .           .           .   15       kW max
Grid voltage d.c.           .           .           .           .    1000        V max
Grid current d.c. (see note 4)       .           .          1.0          A max
Grid dissipation .           .           .           .           .    500       W max
Cathode current d.c.      .           .           .              7.0        A max
 
Typical Operating Conditions of 3CX15000H3
Frequency         .           .           .           .          30           30     MHz
Anode voltage d.c.        .           .           .       7.0        10.0       kV
Anode current d.c.         .           .           .      6.0          5.0         A
Anode dissipation         .           .           .       12            9        kW
Grid voltage d.c.           .           .           .        -600      -800        V
Grid resistor      .           .           .           .        910       1480       Ω
Grid current d.c. .           .           .           .      660       540      mA
Grid dissipation .           .           .           .        290       220       W
Drive power      .           .           .           .          660       650       W
Anode input power        .           .           .        42           50      kW
Anode output power      .           .           .       30           41       kW
Output power less drive             .           .      29.3      40.3      kW
 
Notes
  1. The filament voltage measured at the tube should be 6.3 V ± 5% for satisfactory performance, maximum life is obtained at -5% (6.0 V).
  2. The filament current of 3CX15000H3 must not exceed 800 A, even momentarily, at any time.
  3. Maximum anode voltage and current should not be applied simultaneously; this could result in excessive anode dissipation. The anode supply should include current-limiting resistors, and an over-current trip to remove anode voltage quickly in the event of an overload or arc (such load variations and faults are common in industrial service). Spark gaps should be connected between anode and ground, to protect the tube from voltage transients under fault conditions.
  4. The grid current rating of 1.0 A d.c. should not be exceed, except for very short periods during tuning. The grid circuit should include over-current protection, and d.c. grid current should be monitored continuously during industrial operation with varying loads.