PCB News - What are the commonly used SMT components in SMT

What are the commonly used SMT components in SMT

On the basis of printed circuit boards, the abbreviated SMT patch, which is processed by human technology, is booming in the electronic assembly industry. The SMD components are the important elements that we usually process on the PCB. Then, what are the commonly used SMT components in SMT? It includes the following four categories: chip resistors, chip inductors and semiconductor devices. Next, let's take a closer look.

Chip resistor
SMD resistors (SMD Resistor) can also be called chip fixed resistors (Chip Fixed Resistor), belonging to metal glass glaze resistors. In terms of technology, it is simply regarded as mixing metal powder and glass glaze powder in a certain proportion, and printing on the substrate by screen printing. This is how chip resistors are made. It is different from ordinary resistors in that it has the characteristics of moisture resistance, high temperature resistance, and small temperature coefficient. It also has the advantage of saving circuit space and can make the design more refined.

Chip capacitors
SMD capacitor is a kind of capacitor material. SMD capacitors are called: multilayer (multilayer, laminated) chip ceramic capacitors, also known as SMD capacitors, chip capacitors. There are two ways to express the chip capacitor, one is expressed in inches, and the other is expressed in millimeters.

Chip inductance
SMD inductors are also called power inductors, high current inductors and surface mount high power inductors. It has the characteristics of miniaturization, high quality, high energy storage and low resistance.

Semiconductor device
In fact, semiconductor devices can also be called crystal diodes. Remember the crystal diode we introduced earlier? Its main component is semiconductor, which is an electronic device with unidirectional conduction current. There is a PN junction and two lead terminals inside the semiconductor diode. This kind of electronic device has the conductivity of unidirectional current according to the direction of the applied voltage.

The above is the related introduction of SMD components. Don't look at them as similar to electronic components. The processing technology is indispensable. It is a very fine small component. However, every bit of hard work is worth gaining. It is precisely because of the exquisite workmanship that these four SMD components have small size, light weight, no leads or very short leads, high mounting density, high reliability, and good vibration resistance. It is easy to realize the features of automation.

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