Decode ceramic capacitor color bands and voltage ratings instantly with this free Ceramic Capacitor Color Code with Voltage Rating Calculator. Identify capacitance, tolerance, and working voltage for electronics repair, PCB design, manufacturing, and engineering.
100V 10nF Bypass Disc Cap (5-Band)
Decodes as Brown (100V), Brown (1), Black (0), Orange (x1000 multiplier), Black (±20% tolerance). Commonly used as voltage-decoupling blocks.
22pF High-Frequency Disk (3-Band)
Decodes as Red (2), Red (2), Black (x1 multiplier) with no voltage band. Designed for stability in RF resonant tanks.
Sub-Ohm Low-Pass Stabilizer
Decodes utilizing fractional digit scaling to smooth noise spikes in high-current digital signal lines.
Power Supply Damper
Utilizes high-voltage (630V) 5-Band ceramic disks to safely suppress power line grid variations and voltage peaks.
Radial leaded ceramic disc capacitors consist of a single disk of high-K or low-K ceramic dielectric material coated with silver contacts on both faces, encased in protective epoxy insulation.
Because their small, curved profiles make text printing difficult, manufacturers printed colored horizontal bands. Orient the capacitor disk so the band closest to the top of the body is on your left, then read from top to bottom (towards the wire leads).
On a standard 5-band radial ceramic disc capacitor, the top color band signifies the maximum DC working voltage rating of the component (e.g. Red represents 250V, Blue represents 630V).
Standard low-voltage logic circuits rarely require precision tolerances or high-voltage parameters. Standard 3-Band capacitors are highly cost-effective and provide stable coupling properties.
Class 1 dielectrics (e.g., C0G, NP0) are temperature-compensating and have low dielectric constant properties. Class 2 dielectrics (e.g., X7R, Y5V) use high-K materials to achieve superior capacitance densities inside small disc dimensions.
When there are no tolerance markings, ceramic disk capacitors defaults to standard baseline manufacturing tolerance margins of ±20%.
Ceramic Capacitor Color Code with Voltage Rating is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.