SMD capacitor code
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Results
- Capacitance
- 0.0000001 F
Questions, examples and engineering limits
Decode numeric and EIA-198 capacitor codes. Understand 104K, case-sensitive letters and why capacitance markings do not specify voltage rating.
Content updated:
How is SMD Capacitor Code Calculator: 104, 104K and EIA-198 calculated?
Use C(pF) = first 2 digits × 10^(third digit). Decode numeric and EIA-198 capacitor codes. Understand 104K, case-sensitive letters and why capacitance markings do not specify voltage rating.
Sources: content.kemet.com [1]
How do I calculate this example: 104K?
100 nF ±10%. This is a calculated example under the model stated above; it is not a measured component specification.
Which units does SMD Capacitor Code Calculator: 104, 104K and EIA-198 use?
pF, nF, µF, F; %, pF. Convert prefixes before substituting values; keep the input and output units attached to every number.
Sources: content.kemet.com [1]
Does K in 104K mean kilofarads?
No. In this marking, K denotes ±10% tolerance. 104 determines the capacitance: 100 nF.
Sources: content.kemet.com [1]
Are all tolerance letters percentages?
No. B, C and D are often absolute ±0.1, ±0.25 and ±0.5 pF in ceramic-capacitor specifications. Check the manufacturer convention before interpreting them.
Sources: content.kemet.com [1]
Can an unmarked MLCC be fully identified by measuring it?
No. Capacitance measurement does not establish dielectric, voltage rating or reliability grade. Use the original BOM or verified manufacturer information.
Sources: content.kemet.com [1]
Answers use the stated model and units. Examples are calculated values, not measurements or component ratings.