Components are basic units with independent circuit functions and constitute circuits.
They are the general term for electronic devices such as capacitors, resistors, transistors, etc.
They are components of electronic components and small machinery and instruments; commonly used electronic components include resistors, capacitors, potentiometers, switches, etc.;
Any electronic circuit in life is composed of components.

Circuit board components include resistors, capacitors, inductors, potentiometers, electron tubes, radiators, electromechanical components, connectors, semiconductor discrete devices,
Electroacoustic devices, laser devices, electronic display devices, optoelectronic devices, sensors, power supplies, switches, micro motors, electronic transformers, relays,
Printed circuit boards, integrated circuits, various circuits, piezoelectric, crystals, quartz, ceramic magnetic materials, printed circuit board substrates, electronic functional process special materials,
Electronic adhesive (tape) products, electronic chemical materials and parts, etc.

In terms of quality, printed circuit board component identification has domestic and foreign certifications such as the European Union’s CE certification,
The United States’ UL certification, Germany’s VDE, TUV, and China’s CQC certification to ensure the qualification of components.

What are the common components of circuit boards?

Active components include: chips (IC), memory chips (memory), discrete components;

Passive components include capacitors, resistors, relays, oscillators, sensors, rectifier bridges, optocouplers, connectors, chips, fuses, inductors, switches, diodes, transistors, etc.;

Chip: The English abbreviation is IC, also known as integrated circuit, which is a device with certain functions formed by integrating transistors, resistors,
Capacitors and other components on a silicon substrate using a special process.

Capacitor: A component composed of two metal films close together, separated by insulating material in the middle.
The main characteristic of capacitors is to block direct current and allow alternating current to pass. It is generally represented by “C” plus a number in the circuit (for example,
C21 represents a capacitor numbered 21).

Resistors: The main functions of resistors in PCB boards are: current shunting, current limiting, voltage division, biasing, etc.,
And are generally represented by “R” plus a number in the circuit (for example, R2 represents a resistor numbered 2).

Inductor: It is an energy storage element that can convert electrical energy into magnetic field energy and store energy in the magnetic field.
It is often used with capacitors to form LC filters, LC oscillators, etc. The symbol L is often used to indicate that its basic unit is Henry (H), and millihenry (mH) is often used as the unit.

Relay: Relay is an electrical control device, which is actually an “automatic switch” that uses a small current to control the action of a large current.
It plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit;

Oscillator: An electronic component used to generate repetitive electronic signals (usually sine waves or square waves).
It is an energy conversion device – an electronic circuit or device that can convert direct current into an alternating current signal of a certain frequency. The circuit composed of it is called an oscillating circuit;

Sensor: A detection device;
It can convert the measured information into an electrical signal or other required form of information output to meet the requirements of information transmission, processing, storage,
Display, recording and control. According to its basic sensing function,
it is usually divided into ten categories: thermal sensors, photosensitive elements, gas sensors, force sensors, magnetic sensors, humidity sensors, sound sensors, radiation sensors,
color sensors, and taste sensors.

Rectifier bridge: The rectifier tube is encapsulated in the shell, and the rectification work is completed through the unidirectional conductivity principle of the diode to convert AC into DC;

Optical coupler: Use light as a medium to transmit electrical signals. It has a good isolation effect on input and output electrical signals and is widely used in digital circuits.

Connector: Generally refers to an electrical connector. A device that connects two active devices and transmits current or signals. Such as common sockets;

Chip: mainly composed of arsenic (AS), aluminum (Al), gallium (Ga), indium (In), phosphorus (P), nitrogen (N), strontium (Sr) and other elements. It is the light-emitting element of LED and the core part of LED;

Inductor: a component that can convert electrical energy into magnetic energy and store it. It hinders the change of current. Its principle is similar to that of a transformer;

Diode: It has unidirectional conductivity and is mainly used in rectification circuits, detection circuits, voltage stabilization circuits, etc. It has a wide range of applications;

Transistor: also called triode, it has three pins, so it is usually called triode. It has current amplification function and is widely used, such as switch control, signal amplification, etc.;

The components of a circuit board can be divided into active components and passive components. Active components refer to components that can stimulate and amplify electrical signals, generate oscillations, control current or energy distribution, and even perform data calculations and processing when energy is supplied. What are active components? They mainly include various types of transistors, integrated circuits (ICs), cathode ray tubes, displays, etc. Passive components are relative to active components. They react passively to electrical signals and cannot react to the stimulation, amplification, oscillation, etc. of electrical signals. Common electronic components of this type include resistors, capacitors, inductors, etc.

PCB components can also be divided into active components and passive components.
Simply put, active components refer to components that require power supply to achieve their specific functions and have internal power supply.
Electron tubes, transistors, and integrated circuits are all active components. Passive components do not require external power supply to achieve their own functions.
For example, resistors, capacitors, inductors, etc. do not require any energy supply themselves. As long as there is a signal passing through the circuit, they can complete their own functions.

Active components, as a classification of electronic components, can also be subdivided into discrete components and integrated circuits.
The two are relative. Discrete components refer to single independent electronic components such as resistors, capacitors, inductors, etc.,
Which have a single function and exist in the smallest unit. Integrated circuits connect discrete components and wiring together to form a more complex combination of electronic components.
They are also electronic components with circuit functions and require more complex welding processes.

Passive components in circuit board components can be further subdivided into circuit components and connection components.
To give a few examples, resistors, capacitors, inductors, transformers, relays, switches, etc. are circuit components, and connectors, sockets, connecting wires, printed circuit boards, etc.
Are connection components. It can be seen that circuit board components are connected in series through connection components to form a complete circuit structure.

How to solder PCB components? How to solder SMD components to PCB?

Generally speaking, soldering SMD components is a process: fix PCB components – solder PCB components – clean PCB

SMD component manual soldering steps – clean and fix PCB – fix SMD components – tin components with fewer pins on a certain pin –
Fix soldering components with fewer pins – solder remaining pins – drag solder SMD chips with more pins – remove excess solder – clean the soldering PCB

As PCB and PCB components become smaller and more sophisticated, manual soldering of PCB components becomes more and more difficult.
It is even impossible to manually solder PCB, so professional PCB component soldering manufacturers must be required to complete this work.
ZBPCB has advanced circuit board component soldering and SMT equipment. Provide customers with professional circuit board component soldering services

Circuit board procurement part

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