Capacitor selection criteria
1) capacitance (pF)
2) max voltage (V)
3) max reactive power (kVAR)
Power flow into capacitor
The apparent power flow  S into any arbitrary capacitor is P = real power (dissipated in the capacitor)
S = P + jQ = V^ 2 * ω * C * (j + DF) Q =reactive power
DF = dissipation factor
Reactive power in the capacitor Q = V^ 2 * ω * C V = rms RF voltage across the capacitor 
ω = 2 * π * f
The power dissipated in the capacitor P = V^ 2 * ω * C * (DF) f = frequency
2) 1) 3)
C1 TX pwr f Voltage Vrms Vpeak C1/pF Q DF P UR4LL supply
  Watts MHz multiplier Volts Volts pF kVAr   Watts Russian doorknob capacitors
  3600 3.8 10 4243 6000 150 64.5 0.0015 96.7 150pF 10kV 9kVAr
  2500 3.8 10 3536 5000 150 44.8 0.0015 67.2 150pF/10kV 75kVAr
  1600 3.8 10 2828 4000 150 28.7 0.0015 43.0 150pF 10kV 120kVAr
  900 3.8 10 2121 3000 150 16.1 0.0015 24.2
  400 3.8 10 1414 2000 150 7.2 0.0015 10.7
  100 3.8 10 707 1000 150 1.8 0.0015 2.69
  10 3.8 10 224 316 150 0.18 0.0015 0.27
C2 TX pwr f Voltage Vrms Vpeak C1/pF Q DF P
  Watts MHz multiplier Volts Volts pF kVAr   Watts
  3600 3.8 3 1273 1800 500 19.3 0.0015 29.0
  2500 3.8 3 1061 1500 500 13.4 0.0015 20.1
  1600 3.8 3 849 1200 500 8.6 0.0015 12.9
  900 3.8 3 636 900 500 4.8 0.0015 7.3
  400 3.8 3 424 600 500 2.1 0.0015 3.2
  100 3.8 3 212 300 500 0.54 0.0015 0.81
  10 3.8 3 67 95 500 0.054 0.0015 0.081
17.10.2010
OH1TV
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