Capacitor Value Reading Capacitors of these types (ceramic, various plastic films) are coded in pF, the last two digits being the number of zeroes following the first two digits. e.g. 104 = 10 0000 => 100,000pF => 0.1uF. The values are sometimes coded as colour bands on some types of caps. The letter following the value is usually a tolerance code (IEC 62, BS1852): C = +/-0.25pF D = +/-0.5pF F = +/-1% G = +/-2% J = +/-5% K = +/-10% M = +/-20% Z = -20 +80% The coloured end of single plate ceramic caps indicates the temperature coefficient of the dielectric: green = high K yellow = medium K red/violet = +100ppm/deg C black = zero TC brown = -150ppm/deg C violet = -750ppm/deg C brown/red = -1500ppm/deg C There may also be a material code used for plastic films as follows: MKT = Metallised polyester MKC = Metallised polycarbonate KT = Polyester film/foil KS = Polystyrene film/foil KP = Polypropylene film/foil MKP = Metallised polypropylene