passive electronic component

  Four types of chip inductors There are four main types of  chip inductors , namely wire-wound, laminated, woven and thin-film chip inductors. Two types of wire-wound type and laminated type are commonly used. The former is a product of the miniaturization of traditional wire-wound inductors; the latter is made with multilayer printing technology and laminated production technology, and its volume is smaller than wire-wound chip inductors. It is a key product developed in the field of inductive components. 1. Winding type It is characterized by a wide range of inductance (mH～H), high inductance accuracy, low loss (large Q), large allowable current, strong manufacturing process inheritance, simplicity, and low cost, but its shortcomings are further Miniaturization is limited. The ceramic core winding type chip inductor can maintain a stable inductance and a fairly high Q value at such a high frequency, so it occupies a place in the high-frequency circuit. TDK's NL series induc...

  The main role of a capacitor Capacitors  play an important role in circuits such as tuning, bypassing, coupling, and filtering. With the rapid development of electronic information technology, the update speed of digital electronic products is getting faster and faster. The sales of consumer electronic products such as flat-panel TVs (LCD and PDP), notebook computers, digital cameras and other products continue to grow, which drives capacitors. Industry growth. So what is the main function of the capacitor? 1. Bypass The bypass capacitor is an energy storage device that provides energy for the local device. It can uniformize the output of the regulator and reduce the load demand. Just like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device. In order to minimize the impedance, the bypass capacitor should be as close as possible to the power supply pin and ground pin of the load device. This can well prevent the ground potential rise...

  The practical application of multilayer inductors and the four main points of attention Multilayer inductors  are non-wound inductors. The commonly used sizes are 0402, 0805, 0603, 1206, 1210, 1812, etc. The multilayer inductors have good magnetic shielding, high sintering density, and good mechanical strength. They are comparable to wire-wound inductors. Compared with the small size, it is conducive to the miniaturization of the circuit, the magnetic circuit is closed, it will not interfere with the surrounding components, and will not be interfered by the surrounding components, which is conducive to the high-density installation of the components; Laminated integrated structure, high reliability, good heat resistance, good solderability, regular shape, suitable for automated surface mounting production. The disadvantage is that the pass rate is low, the cost is high, the inductance is small, and the Q value is small. At present, laminated inductors are widely used in note...