Circuit board (PCB) is the foundation of modern electronic equipment, on which various electronic components are integrated. These components can be divided into active components, passive components, connectors and switches, sensors and actuators, signal processing and interference suppression components.period22035025Many adjustments have also been made, and the direction of product research and development has been reversed, in order to better meet the market demand. https://www.asourcingelectronics.com/product/detail/store/8849622/22035025.html
1. Active components
Active components can regulate current and signals, mainly including:
Transistor: including bipolar transistor (BJT) and field effect transistor (FET) such as MOSFET, JFET, etc., used for amplifying and switching circuits.
Integrated circuit (IC): microprocessor (MCU), digital signal processor (DSP), operational amplifier (Op-Amp), etc., which are widely used in complex control and signal processing tasks.
Diode: including standard diode, light emitting diode (LED) and Schmidt trigger, etc., used for rectification, protection and signal indication.
2. Passive components
Passive components are used to store, release or consume electric energy, including:
Resistor: an element used to control current and voltage division, which is divided into fixed resistance and variable resistance (such as potentiometer).
Capacitor: energy storage element, including ceramic capacitor, electrolytic capacitor and metal film capacitor, used for filtering, coupling and vibration suppression.
Inductor: Components used to store magnetic energy, such as wound inductance and core inductance, are usually used in filtering and oscillation circuits.
3. Connectors and switches
Connectors and switches are used for the connection and control of circuits. Common ones are:
Connectors: plugs, sockets, pins, buses and terminal blocks, etc., which help to connect different circuits.
Switch: including button switch, toggle switch and rotary switch, allowing users to manually control the switch state of the circuit.
4. Sensors and actuators
These elements are used to convert physical quantities into electrical signals or perform physical actions:
Sensors: such as temperature sensors, humidity sensors and optical sensors, which convert environmental information into electrical signals.
Actuator: such as relay and solenoid valve, used to control the start and stop of other circuits or equipment.
5. Signal processing and interference suppression elements
In order to improve the circuit performance and stability, the following components are used:
Filters: including RC filters and LC filters, used to remove unnecessary signal clutter.
Regulators: such as linear regulators and switching regulators, are used to keep the power supply voltage stable and ensure the continuous normal operation of the circuit.
Circuit protection components: such as transient voltage suppressor, fuse and thermal protector, to prevent damage caused by overload or short circuit.