BN074K0332K--

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Film Capacitors

Film capacitors, sometimes called plastic film capacitors, are passive electrical components used for suppressing unwanted AC signals, noise, and other interference in both high and low frequency applications. These capacitors are frequently used because of their high dielectric strength, which allows them to store more electrical charge than other types of capacitors. The different kinds of film capacitors for use in various applications include BN074K0332K.

BN074K0332K – Application Field and Working Principle

The BN074K series film capacitor, manufactured by KEMET Electronics Corporation, is a three-layer polypropylene capacitor. These capacitors are used in audio applications such as crossover networks, tone control networks, amplifier damping, speaker driver circuits, and tweeter/midrange crossover networks.

This type of capacitor is made with three layers (electrodes, dielectric, and metal foil layers) that are made using the dielectric compound of polypropylene. When AC signals flow through it, the electrons of the metal foil layers are alternately attracted and repelled, creating an electrical field between the electrode layers. This field stores charge in a capacitor, allowing small AC signals to pass through the capacitor while larger AC signals are blocked. As a result, the capacitor prevents unwanted AC signals from interfering with the output.

The BN074K0332K film capacitor features a wide frequency range of 0.1Hz to 100KHz. It also has a low ESR (Equivalent Series Resistance) rating and is temperature-resistant, so it can operate in harsh environments without losing performance. The BN074K0332K also offers low self-heating, which makes it ideal for high-frequency applications. Furthermore, these capacitors are highly heat resistant, as they can operate up to temperatures of 125°C. The BN074K0332K film capacitors also boast a wide operating temperature range between -55° and 125°C, giving them the ability to handle extreme temperatures.

The BN074K0332K film capacitors also have a high capacitance rating of 0.33uF. The maximum rated voltage for the capacitor is also fairly high at 250V DC. In addition, the BN074K0332K is also RoHS (Restriction of Hazardous Substances) compliant, meaning it contains no hazardous materials and is safe to use in any environment.

Therefore, due to its high dielectric strength, wide frequency range, low ESR rating, temperature resistance, RoHS-compliant construction, and high capacitance rating, the BN074K0332K film capacitor is an ideal choice for audio applications such as crossover networks, tone control networks, amplifier damping, speaker driver circuits, and tweeter/midrange crossover networks.

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