Electronic Categorization

One, Component: A product that does not alter the molecular composition of the raw material during the manufacturing process can be called a component.

Components are devices that do not require energy. They include: resistors, capacitors, and inductors. (Also known as Passive Components)

Components are categorized as:

1. Circuit Components: Diodes, resistors, etc.

2. Connectors, sockets, connecting cables, printed circuit boards (PCBs), and more.

Section II: Devices - Products whose raw material molecular structure is altered during the manufacturing process are referred to as devices.

Components are categorized as:

1. Active devices, characterized primarily by: (1) consuming electrical power internally, (2) requiring an external power source.

2. Discrete components, including: (1) Bipolar Junction Transistors, (2) Field-Effect Transistors, (3) Silicon Controlled Rectifiers, (4) Semiconductor Resistors and Capacitors.

Resistor

Resistance is represented by "R" followed by a number in a circuit, e.g., R1 denotes the resistor numbered 1. The primary functions of resistance in a circuit include:分流(diverting current), 限流(restricting current), 分压(dividing voltage), 偏置(biasing) etc.

Capacitor

Capacitors are generally represented in circuits by "C" followed by a number (e.g., C13 indicates a capacitor with the number 13). A capacitor is an element composed of two closely spaced metal films separated by an insulating material. The main characteristic of capacitors is to block direct current while allowing alternating current to pass.

The capacitance size indicates the amount of electrical energy it can store. The resistance of a capacitor to alternating signals is called capacitive reactance, which is related to the frequency of the alternating signal and the capacitance.

Inductor

Inductors are not frequently used in electronic manufacturing, but they are equally important in circuits. We consider inductors, like capacitors, to be energy storage elements that can convert electrical energy into magnetic energy and store it within a magnetic field. Inductors are denoted by the symbol L, with their basic unit being the Henry (H), commonly measured in millihenries (mH). They often work in conjunction with capacitors to form LC filters, LC oscillators, and the like. Additionally, the properties of inductance are utilized to manufacture chokes, transformers,