3-Digit: First two digits are significant figures, third is multiplier ($10^x$). 'R' indicates decimal. Tolerance typically ±5%.

4-Digit: First three digits are significant, fourth is multiplier. 'R' indicates decimal. Tolerance typically ±1%.

EIA-96: Two digits (code for value from EIA-96 table) followed by a letter (multiplier). Tolerance is ±1%.