Ring varistor Ring varistor is a resistor that varies with voltage over a range of current and voltage, perhaps a resistor that is sensitive to voltage. The English name is “Voltage-dependent resistor” and is abbreviated as “VDR”, perhaps called “Varistor”. The resistor body data of the ring varistor is a semiconductor, so it is a type [...]
High voltage ceramic capacitor high voltage ceramic capacitor, that is, high-voltage ceramic capacitors used in power systems, generally, such as power system metering, energy storage, and voltage division, use high-voltage ceramic capacitors. High-voltage ceramic capacitors have been widely used and not in the LED lamp industry. High-voltage ceramic capacitors are extruded into round tubes, discs or [...]
Application of mylar capacitor Mylar capacitor is an essential component in electronic products. They act as filters, oscillations, power supply decoupling, bypassing and coupling of ripple signals in the circuit. Composition of mylar capacitor The simplest structure of a mylar capacitor can be composed of a layer of insulating medium sandwiched between two metal plates. A [...]
The principle of ceramic capacitor and electrolytic capacitor The electrolytic capacitor is a metal foil with a positive electrode (aluminum or tantalum), an oxide film (aluminum oxide or tantalum pentoxide) that is in close contact with the positive electrode is a dielectric, the cathode is made of a conductive material, an electrolyte (the electrolyte can be [...]
一 Solid aluminum electrolytic capacitor Solid aluminum electrolytic capacitor, which differ from ordinary capacitors (ie liquid aluminum electrolytic capacitors) in that they use different dielectric materials, liquid aluminum capacitor dielectric materials are electrolytes, and solid capacitor dielectric materials are conductive. Polymer Materials. In view of the problems of liquid electrolytic capacitors, solid aluminum electrolytic capacitors came [...]