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  • Passive Components
Any electronic product must use two components, so-called "active components" and "passive components". "Active components", as the name suggests, are components that can actively perform operations independently, while "passive components" play a passive protective role. When an electronic product changes current or voltage, the role of "passive components" is to protect "active components" by means of low voltage, filtering noise, etc. To put it simply, "passive components" with low unit prices are always ready to protect the safety of "active components" with high unit prices.
Electronic components are the basis for composing electronic products and mastering the types, structures, and properties of commonly used electronic components is the foundation of electronic technology.
Electronic components are divided into two categories, active and passive, the difference lies in whether or not power is required to drive. Semiconductor components such as transistors and diodes are often discussed as active components; passive components including resistors, capacitors, inductors, etc. are often regarded as supporting roles on the motherboard. In recent years, the phenomenon of short supply of passive components in the market has attracted market attention, especially MLCC for the most part, MLCC is a kind of ceramic capacitor. Its capacitance value is proportional to the surface area of the product and the number of layers of ceramic film stacking. Due to the progress of ceramic film stacking technology, the capacitance value content is also higher, and it can gradually replace medium and low capacitors such as electrolysis market applications for capacitors and tantalum capacitors.
Passive components are indispensable basic components in electronic products. The annual usage starts from trillions, the price is cheap, the number of materials used is large, and most of them are general-purpose types, which belong to a niche market.