1. What is a Ceramic Capacitor Code Calculator?

Definition: This calculator determines the capacitance value from the 3-digit code found on ceramic capacitors.

Purpose: It helps electronics engineers, technicians, and hobbyists quickly decode capacitor values for circuit design and repair.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Capacitance in picofarads (pF)
• \( digit1 \) — First digit of the code (0-9)
• \( digit2 \) — Second digit of the code (0-9)
• \( multiplier \) — Power of 10 multiplier (-2 to 9)

Explanation: The first two digits form the significant figures, and the third digit represents the power of 10 multiplier.

3. Importance of Capacitor Code Calculation

Details: Correct interpretation of capacitor codes ensures proper component selection, circuit functionality, and prevents damage to electronic components.

4. Using the Calculator

Tips: Enter the three digits from your capacitor code. The first two digits should be between 0-9, and the multiplier between -2 to 9.

5. Frequently Asked Questions (FAQ)

Q1: What does a code like "104" mean?
A: 104 = 10 × 10⁴ pF = 100,000 pF or 100nF (digits 1,0 with multiplier 4).

Q2: What about codes with letters?
A: Letters often indicate tolerance (J=±5%, K=±10%). This calculator focuses on the numeric value.

Q3: How do I read small capacitors with only 2 digits?
A: Two-digit codes typically represent the value directly in pF (e.g., "47" = 47pF).

Q4: What's the range of this calculator?
A: It can calculate values from 0.01pF (digits 10, multiplier -2) up to 99,000,000,000pF (digits 99, multiplier 9).

Q5: Why are some multipliers negative?
A: Negative multipliers are used for very small capacitors (e.g., 0.1pF would be 100 with multiplier -2).