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OpenSpecEngineering

Open data for a field built on precision

Resistor Color Code Decoder

Decodes a 4-band or 5-band resistor color code into its resistance value and tolerance, per IEC 60062 (Marking codes for resistors and capacitors). A 4-band code has two significant-digit bands; a 5-band code has three.

digit — digit — multiplier — (digit) — tolerance
Bands read left to right, starting from the band closest to one end.

Solution

History