BFC238021823

Film capacitors, also known as plastic film capacitors, are some of the most commonly used components in the global electronics industry. The BFC238021823 type, in particular, is an axial-lead film capacitor with a capacitance range of 2.2μF to 18μF and a working voltage range of 250VAC to 400VAC. This series of capacitors is made using polyester, polypropylene, or polycarbonate plastic films as the dielectric and electrodes made of aluminum foil, with a series of terminal leads coated with nickel or silver.

The most common application for this type of capacitor is filtering and signal coupling. Due to the low ESR, this component is used in pulse-discharge circuits and switching power supplies, where it is expected to reduce the voltage peaks. It also finds applications in consumer-electronic products such as televisions, radios, and amplifiers, where the capacitor helps to reduce the AC hum, or mains hum, produced by noisy electrical environments. Additionally, when paralleled with larger capacitors, these capacitors can extend the temperature endurance limit, enabling them to operate in environments with higher temperatures.

The working principle of the BFC238021823 capacitor is simple and effective. The capacitor stores energy in the form of electric charge. When an AC voltage is applied, the capacitance of the capacitor acts as a buffer, which limits the amplitude of the AC voltage. This regulating effect is based on the size of the capacitor’s dielectric medium and the applied AC voltage. When exposed to continuous AC voltage, the capacitor charges and discharges over and over, sustaining a constant and steady output voltage. In addition, the polyester, polycarbonate, and polypropylene dielectrics help increase the capacitor’s insulation strength, which makes the BFC238021823 capacitor a reliable device.

The BFC238021823 capacitor is the go-to component for voltage regulation and filtering applications. While it isn’t suitable for use in high-frequency applications due to its poor audio performance, its superior AC performance makes it the perfect choice for consumer electronic equipment and noise reduction circuits.