Code 104 passes the supported grammar: first digit 1, second digit 0, multiplier 4. Keep 10 together, multiply by 10⁴ pF, then convert the exact result into larger units.
Calculate 10 × 10⁴ pF
10⁴ is 10000. Multiplying 10 × 10000 gives exactly 100000 pF. No preferred value, tolerance, or measurement is involved in this arithmetic.
Convert 100000 pF to 100 nF and 0.1 µF
100000 pF ÷ 1000 = 100 nF. Dividing once more by 1000 gives 0.1 µF. All three strings denote the same exact nominal capacitance.
Stop at nominal capacitance
The digits 104 alone do not state tolerance, voltage, dielectric, polarity, construction, or whether a part is safe in a circuit. Verify the complete marking and datasheet before selection or replacement.