What Are Farads?
The term farad is usually symbolized as just the capital letter "F". A farad is the SI unit for capacitance. It gets its name from the English physicist Michael Faraday.
For example, a capacitor with a capacitance of 15 nF will increase by 1 volt per second with a 15 nA input current.
1 microfarad (μF) = one millionth (10-6) of a farad
1 nanofarad (nF) = one billionth (10-9) of a farad
1 picofarad (pF) = one trillionth (10-12) of a farad