passive element; passive component
Technical term in electronics for a component that does not require an external power source to operate, such as a resistor, capacitor, or inductor.
A resistor is one of the typical passive components.
Passive elements do not require an external power source.
能動素子 (active component) refers to components that can amplify or control power, such as transistors, and typically require an external power source, in contrast to 受動素子.
Compound of 受動 (じゅどう, 'passive') and 素子 (そし, 'element' or 'device'). The term is a direct calque from English 'passive element' used in electronics.