Nennkapazität

Nennkapazität refers to the specified or rated capacity of an electrical component, most commonly a capacitor. It represents the ideal amount of electrical charge that the component can store under standard operating conditions. This value is typically indicated on the component itself or in its datasheet and is usually expressed in units of Farads (F), microfarads (µF), nanofarads (nF), or picofarads (pF).

The Nennkapazität is a crucial parameter for designing and using electronic circuits. It dictates how much charge a capacitor can hold, which in turn affects its performance in applications such as filtering, energy storage, and timing circuits. However, the actual capacitance of a capacitor can deviate slightly from its Nennkapazität due to manufacturing tolerances. These tolerances are usually expressed as a percentage and indicate the acceptable range of variation from the rated value.

Furthermore, the Nennkapazität is determined under specific conditions, such as a particular voltage and temperature. Changes in these operating parameters can cause the actual capacitance to differ from the Nennkapazität. For instance, capacitance can vary with applied voltage, a phenomenon known as voltage coefficient, and also with temperature, referred to as the temperature coefficient. Therefore, when selecting a capacitor for a specific application, it is important to consider not only the Nennkapazität but also these other factors and the component's tolerance.