Capacitor Code Decoder
Decode 3-digit capacitor code (e.g., 104 = 100nF) to capacitance in pF, nF, and μF. Works with ceramic, film, and tantalum capacitor markings.
Formula
How It Works
Capacitor codes are a standardized method for representing capacitance values and tolerances in a compact 3-digit or 4-digit format used extensively in electronics. The coding system allows manufacturers to print minimal information on small electronic components while providing precise capacitance and tolerance details. The first two digits typically represent the significant digits, and the third digit indicates the multiplier or number of zeros to be added.
Worked Example
Problem: Decode the capacitor code 104 Solution: 1. First two digits '10' represent the significant digits: 10 2. Third digit '4' indicates multiplier: 10^4 (10,000) 3. Calculate: 10 × 10,000 = 100,000 pF = 100 nF 4. Default tolerance is typically ±20% unless otherwise specified
Practical Tips
- ✓Always verify the manufacturer's specific coding standard
- ✓Use a capacitor code reference chart for quick conversions
- ✓Consider temperature characteristics (X7R, C0G) for precise applications
Common Mistakes
- ✗Misinterpreting the last digit as a tolerance value
- ✗Forgetting to convert pF to more practical units like nF or µF
- ✗Not checking the tolerance suffix (J, K, M)
Frequently Asked Questions
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