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What is the main function of data converter IC

What are the main product characteristics of ceramic chip capacitors

Ceramic chip capacitor is made of high dielectric constant capacitor ceramic barium titanate and titanium oxide extruded into a circular tube, disk or disk as the medium, and silver plated on the ceramic as the electrode by sintering infiltration method. It is divided into high-frequency ceramic capacitor and low-frequency ceramic capacitor.   80% of the capacitors produced in the world are ceramic chip capacitors. About 300-400 capacitors are required for a mobile phone, and about 700-800 capacitors are required for notebook and tablet computers, which contributes greatly to the miniaturization and lightweight of electronic devices.   From the perspective of the structure of ceramic chip capacitors, the main structure of plate ceramic chip capacitors is mainly divided into five parts: ceramic medium, internal electrodeposition, external electrode, nickel layer and tin layer. In terms of structure, this ceramic chip capacitor is a multi-layer stacked structure, achieving miniaturization and space saving, and realizing high-density assembly of circuit substrate.   So, what are the main product characteristics of ceramic chip capacitors?   Rated voltage: there is an upper limit to the voltage that can be applied to the capacitor. The maximum voltage available that can be stably applied to the capacitor is called the rated voltage. The rated voltage is usually expressed by DC voltage, and AC voltage products are also useful.   Leakage current / insulation resistance / insulation breakdown: Although the capacitor cuts off the direct current, it still produces very small leakage current. The value obtained by dividing the current through the capacitor by the voltage applied to the capacitor is called the insulation resistance value. Ceramic capacitors have high insulation resistance and leakage current will not be a problem in general applications. However, if the rated voltage is exceeded and the applied voltage is further increased, the insulation breakdown of the capacitor will eventually occur.   Impedance frequency characteristic: ceramic chip capacitor has the characteristic that the higher the frequency, the easier to pass. In an actual capacitor, the impedance value is infinitely close to zero with the increase of frequency, but in an actual capacitor, the impedance will rise with the increase of frequency. The results show that the impedance frequency characteristic of the signal is a V-shaped (or U-shaped) curve.

What is the maximum current that the inductor can pass

Inductors, also known as chokes, reactors, and dynamic reactors. It is an element that can convert electric energy into magnetic energy and store energy in the magnetic field. The structure is similar to the transformer and has the characteristics of DC and AC resistance. In electronic circuits, inductance mainly plays the role of filtering, current limiting, tuning, oscillation, interference suppression and magnetic field generation.   Inductance is an attribute of closed loop and a physical quantity. When the current passes through the coil, a magnetic field induction is formed in the coil, and the induced magnetic field will generate induced current to resist the current passing through the coil. It is a circuit parameter that describes the induced electromotive force effect in this coil or in another coil due to the change of coil current. Inductance is the general term of self inductance and mutual inductance. Devices that provide inductance are called inductors.   Then, what is the maximum current that the inductor can pass?   Strictly speaking, there is no special specification or unified answer standard for the problem of how much current an inductor can generally pass. Why do we say this? It is mainly because the inductance size of different types of inductors is different. Even for the same type of inductor products, there are differences in the current size of different core powder formulas, different winding methods, and different coil turns.   Take the Patch inductor as an example, most of the chip inductors have a relatively small current, which is below 1a. It is possible that the current of 2a and 3a is already a large current for the Patch inductor, while the current of the chip integrated inductors can even be more than 20A. This is only the current difference of the same type of inductance, let alone the current difference of different types of inductance.

Supercapacitors are bringing new materials and may have far-reaching consequences in the future

With the increasing demand for energy and the reduction of fossil fuels, it is of great importance to use renewable energy for power generation. Moreover, energy storage is as important as energy production for industrial progress and human well-being.   Supercapacitor is an attractive electrochemical energy storage system with the advantages of low price, relatively high energy density, high specific capacitance, high capacitance retention rate and renewability.   As an electrode material in various energy storage technologies, organic materials have received much attention in recent years. Conjugated polymers (pi-CPs) are attractive because of their many advantages, such as good conductivity, cost-effectiveness, light weight and environmental protection. Among them, using pi-CPs as the electrode material of multifunctional energy storage system can greatly promote the rapid development and innovation of electrode materials.   Chemical oxidation polymerization is a two-electron exchange technology that requires the use of oxidants to oxidize monomers. Electropolymerization is the most advantageous synthetic method after oxidative polymerization. Polymerization occurs at the working electrodes when an external voltage is applied. In most cases, these synthesizations are carried out in a glove-type operating box.   Super capacitor is generally referred to as double layer capacitance. Double layer capacitance is a kind of super capacitor and a new type of energy storage device.   The double layer capacitance is between the battery and the capacitance, and its enormous capacity can be fully used as a battery.   Double-layer capacitors are widely used. As the power balance power supply of the lifting unit, it can provide the power with extra large current. As a starting power supply for vehicles, the starting efficiency and reliability are higher than traditional batteries, which can completely or partially replace the traditional batteries. It can be used as traction energy for vehicles to produce electric vehicles, replace traditional internal combustion engines, and transform existing trolleys. Military use ensures the smooth start of tanks, armored vehicles and other combat vehicles (especially in the cold winter), as pulse energy for laser weapons. It can also be used to store energy for other electromechanical devices.

Modular Cable Assemblies (VA)

DigiKey Kit (VA)

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Panasonic Electronic Components

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YAGEO

National Semiconductor

Toko America Inc. EMIT

EMIT

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