Active components are called active components, passive components are called passive components, active components can be used to form the \"source\" in the circuit, in this circuit it is in the core position. Passive components, by contrast. The transistor and sensor are active components, and the crystal oscillator should be passive components.
Active components include a wide variety of transistors, integrated circuits (ics), video tubes and displays. Passive Components: Passive Components relative to active components, refers to the electric signal can not stimulate amplification, oscillation, etc., the response to the electric signal is passive, and the electric signal according to the original basic characteristics through the electronic components.
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The most common resistors, capacitors, inductors, etc., are passive components.