-||- Ceramic capacitors
, unlike electrolytic
ones, have their value coded as three digits, due to their size, as the smallest ones are about the size and shape of a lentil
They are measured in Farad
s, which is equivalent to producing 1 volt
at 1 ampere
for 1 second. That is actually a huge value, so all capacitors are graded using the SI prefixes
), or micro
The capacitors have three digits inscribed on them. The first two represent the two first significant digits (mantissa) and the last remaining digit indicates the number of zeroes following (exponent) represented in picofarads, mmn:: mm X 10n pF :
47 with five zeroes: 4,700,000pF or with zeroes shifted out: 4.7μF.
A special exception exists for small pF values: the format is mRn:
represents a 4.7pF capacitor.