Component Codes & Values
Every component codes & values calculator on CalcEngines — unit converters, derived indices and interpretive tools, each with its formula, a worked example and the reference intervals it is judged against.
4 calculators in this section
- Capacitor Code CalculatorDecode the three-digit value code printed on ceramic and film capacitors (104 = 100 nF), the tolerance letter and the EIA two-character voltage code (1H = 50 V, 2A = 100 V) — with a table for going the other way, from a value to its code.
- Inductor Color Code CalculatorRead a four-band moulded inductor — two digits, a multiplier and a tolerance, in microhenries — or work the other way and find the bands for the value you want. Covers the EIA four-band scheme and the military marking with its wide silver body band and gold decimal point.
- Resistor Color Code CalculatorPick the colour of each band on a 4-, 5- or 6-band resistor and read its resistance, the tolerance range it may really be, and the temperature coefficient — using the IEC 60062 colour code.
- SMD Resistor Code CalculatorRead the marking on a surface-mount resistor — 473, 4702, 4R7 or the three-character EIA-96 code — or go the other way and find the marking a maker would print for a value, with the full 96-code table and the multiplier letters.