PET3CX10000H3

Drop-in equivalent of 3CX10000H3
Air Cooled Triode For Industrial RF Heating
  • Power Triode Tube Valve
  • Output Power: 28 kW (CW mode)
  • Anode voltage: 10 kV max
  • Anode dissipation: 10 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 3CX10000H3 / PET3CX10000H3

3CX10000H3 is a forced air-cooled, ceramic-metal power triode with a robust mesh filament, for use in industrial radio-frequency heating
 
Electrical Characteristics of 3CX10000H3 
Filament            .           .           .           .           .       thoriated tungsten
Filament voltage (see note 1)     .           .           .   7.5              V
Filament current            .           .           .           .     100             A
Surge Filament current (peak) (see note 2)         500             A
Filament cold resistance .           .           .           .  9.7          mΩ
Peak usable cathode current      .           .           .  26              A
Amplification factor (Va = 2.3 kV, la = 1.0 A)        20
Mutual conductance (Va = 2.5 kV, la = 1.3 A)      31         mA/V
Inter – electrode capacitances:
Grid to anode    .           .           .           .           .     39           pF
Grid to filament             .           .           .           .    54           pF
Anode to filament          .           .           .           .   2.0          pF
 
Mechanical Characteristics of 3CX10000H3
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
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 of 3CX10000H3
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 OC. The air flows required to maintain seal temperature at 225 OC in an ambient temperature of 50 OC 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. 16 ft3/min directed at the centre contact ring, ½ inch below the outer contact ring, through a 1 ½ inch internal diameter air duct at 45O to the axis of the tube, is sufficient for operation up to 30 MHz at 50  OC ambient and 5000 ft altitude.
 
Minimum Radiator Air Flow Requirements of 3CX10000H3
                                    Sea Level                                              5000 Feet        
                                    Pressure                                              Pressure
    Anode               Air                  Drop                               Air                               Drop
Dissipation        Flow                inches                            Flow                             inches
     Watts           ft3/min               Water                           ft3/min                            Water  

    4000                 85                    0.18                             105                                 0.21
    6000                145                   0.38                             175                                 0.46
    8000                215                   0.68                             260                                 0.82
  10000                 295                   1.08                             360                                 1.32
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  of 3CX10000H3 (Absolute Values)
Frequency         .           .           .           .           .           90     MHz max
Anode voltage d.c.        .           .           .           .          10        kV max
Anode current d.c. (see note 3)  .           .           .      4.0         A max
Anode input power        .           .           .           .         40      kW max
Anode dissipation         .           .           .           .          10      kW max
Grid voltage d.c.           .           .           .           .          –1000        V max
Grid current d.c. .(See note 4)     .           .           .     0.6         A max
Grid dissipation .           .           .           .           .         250       W max
Cathode current d.c.      .           .           .           .       5.0         A max
 
Typical Operating Conditions of 3CX10000H3
Frequency         .           .           .           .           .          30           30          MHz
Anode voltage d.c.        .           .           .           .         7.0          9.0            kV
Anode current d.c.         .           .           .           .        4.0          4.0              A
Anode dissipation         .           .           .           .         9            7            kW
Grid voltage d.c.           .           .           .           .         –670      –930             V
Grid resistor      .           .           .           .           .        2450      2160           Ω
Grid current d.c. .           .           .           .           .      275        430          mA
Grid dissipation .           .           .           .           .       94          168           W
Drive power      .           .           .           .           .        260        570           W
Anode input power        .           .           .           .     28           36          kW
Anode output power      .           .           .           .    19           29          kW
Output power less drive .           .           .           .   18.7       28.4         kW
 
Notes
  1. The filament voltage measured at the tube should be 7.5 V ± 5% for satisfactory performance, maximum life is obtained at -5%.
  2. The filament current of 3CX10000H3 must not exceed 500 A, even momentarily, at any time.
  3. 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 0.6 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.