Capacitance Formula:
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Definition: This calculator determines the capacitance value of ceramic capacitors based on their numeric code and multiplier.
Purpose: It helps electronics engineers, technicians, and hobbyists decode ceramic capacitor markings to understand their actual capacitance values.
The calculator uses the formula:
Where:
Explanation: The numeric code is multiplied by the appropriate factor to get the actual capacitance value.
Details: Correctly identifying capacitor values is crucial for circuit design, troubleshooting, and component replacement.
Tips: Enter the numeric code from the capacitor and select the appropriate multiplier from the dropdown menu.
Q1: How do I read ceramic capacitor codes?
A: Most ceramic capacitors use a 3-digit code where the first two digits are significant figures and the third is the multiplier.
Q2: What's the difference between pF and μF?
A: 1 μF (microfarad) = 1,000,000 pF (picofarads). μF is used for larger values, pF for smaller ones.
Q3: Why do some capacitors use different coding systems?
A: Different manufacturers may use different coding schemes, especially for very small or very large values.
Q4: How accurate are ceramic capacitor values?
A: Ceramic capacitors typically have tolerances ranging from ±1% to ±20%, depending on their class.
Q5: What if my capacitor has letters in the code?
A: Letters may indicate voltage rating, tolerance, or temperature coefficient. Only use the numeric part for this calculator.