ALLIED'S ELECTRONICS DATA HANDBOOK

Military Capacitor Letter-Number Codes

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  MIL-C-20D    TYPE   CC  
Capacitors  *  Fixed   *  Ceramic Dielectric   *  Temperature Compensating
     
             
  CC     20     A     K     OR5     C  
                      1            2           3               4               5    
     
 
1  STYLE
   Radial lead tubular case, 500
   DC working volts, styles, 20, 22,
   25, 27, 30, 31, 32, 33, 35, 37,
   45, 47.  Axial lead tubular case,
   500 DC working volts, styles,
   21, 26, 36.  Disc case, 500 DC
   working volts, styles, 50, 51,
   52, 53.  Rectangular case styles,
   60, 62, 64, 66, 68, 70, all 150
   DC working volt; and 61, 63,
   65, 67, 69, 71, all 500 DC
   working volts.
 
4  CAPACITANCE
   Expressed in picofarads. First
   two digits represent significant
   figures.  Last digit indicates the
   number of zeros to follow.
   When fractional values are re-
   quierd, the letter "R" indicates
   the placing of the decimal
   point, and the following digits
   represent significant figures.
 
 
 
 
     
 
2  TEMPERATURE
COEFFICIENT
  A = P100 = +100  
  C = NPO = ±0  
  H = N30 = -30  
  L = N80 = -80  
  P = N150 = -150  
  R = N220 = -220  
  S = N330 = -330  
  T = N470 = -470  
  U = N750 = -750  
all as per charts in MIL-C-20D
 
5  CAPACITANCE
TOLERANCE
  C = ± 0.25 picofarads  
  D = ± 0.5 picofarads  
  F = ± 1 % (±1.0 pf @ ±10 pf)  
  G = ± 2 % (±2.0 pf @ ±10 pf)  
  J = ± 5 %  
  K = ± 10 %  
 
     
 
3  T-C TOLERANCE
BAND ENVELOPE
 
F, G, H, J, K, all as per curves
in MIL-C-20D
 
 
     

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