What are the common active components and passive components?
During the PCBA processing process, corresponding electronic components will be needed, and these electronic components are mainly divided into two categories, one is active components and the other is passive components, so do you know those components? Are the devices active? Which components are passive? What is the difference between active components and passive components?
First of all, let’s understand the difference between active components and passive components. Active components are the “power source” in electronic circuits. They require an external power supply to provide energy to operate, while passive components do not. It can operate with the help of external power supply. This is the difference between active components and passive components. In addition, their functional properties are also different. Active components usually have functions such as amplification and control, while passive components are mainly used to adjust the electrical properties of the circuit.
The most common active components are transistors (Transistors) and integrated circuits (ICs). They have functions such as amplification, switching, and regulation, and can control the flow of current and voltage.
Transistor: A transistor is a semiconductor device commonly used as a control element in current amplifiers, switches, and other circuits. The main function of a transistor is to control the flow of current, which can amplify signals or achieve conduction and interruption in switching circuits.
Integrated circuit: An integrated circuit is a device that integrates a large number of electronic components and functional modules on a single chip. They include microprocessors, memories, amplifiers, timers, etc., and are widely used in various electronic devices and systems.
Common passive components include resistors, capacitors, inductors, etc. These devices are mainly used to adjust the resistance, capacitance and inductance characteristics of circuits.
Resistor: Resistors are used to limit the flow of current, control the resistance value in a circuit, and are often used to regulate the voltage and current of a circuit.
Capacitor: Capacitors are used to store electrical charge and have the ability to store and release energy in a circuit. They are mainly used in circuits for filtering, coupling, voltage stabilization and other functions.
Inductor: Inductors are mainly used to store magnetic field energy and hinder changes in current. They are commonly used in circuits for filtering, impedance matching, and energy conversion.
