Unit aF
Name attofarad
Category Capacitance
Details An attofarad (aF) is a unit of capacitance in the International System of Units (SI). Capacitance is the ability of a component or circuit to store and release electrical charge, and it is typically used to describe the property of capacitors, which are common electronic components.

The unit farad (F) is named after the British physicist Michael Faraday and is the standard SI unit for capacitance. However, a farad is a relatively large unit, and for many practical applications, smaller units are more appropriate. The attofarad (aF) is one such smaller unit, where 1 attofarad is equal to 10^-18 farads.

The prefix "atto" represents a factor of 10^-18, which means that an attofarad is one quintillionth (10^-18) of a farad. This small unit of capacitance is used to describe and measure the capacitive properties of electronic components and circuits, particularly in high-frequency applications and nanotechnology, where extremely small capacitance values are encountered.