ECQ-B1H683JF3

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Film capacitors are used in a wide range of applications across many industries due to their unique properties. Among these applications, the ECQ-B1H683JF3 stands out as one of the most impressive. This film capacitor is a radial-leaded part and is designed specifically for use in power factor correction within switching power supplies. This article will discuss the ECQ-B1H683JF3\'s application field, working principle, and construction.

Application Field

The ECQ-B1H683JF3 is ideally suited for use in both single and multiple phase power factor correction (PFC) circuits found in switching power supplies. The power factor correction circuit is designed to reduce the harmonic distortion associated with the switching frequency used in the power supply. This type of film capacitor is extremely efficient, providing a low ESR rating with ultra-low ESL. This allows for the elimination of costly bulk storage capacitors that are requсred in larger power factor correction circuits.

The ECQ-B1H683JF3 is also suitable for line-to-ground applications in general purpose power supplies. This includes applications such as voltage boosting, voltage control, active power management, and buck/boost operations. Its miniature profile, low ESR, and low ESL make it an ideal choice in these types of applications.

Working Principle

The ECQ-B1H683JF3 works on the principle of capacitive reactance. In a power factor correction application, the film capacitor is used to reduce the harmonic distortion associated with the switching frequency of the power supply. The ECQ-B1H683JF3 is also used for general purpose power supply applications, such as voltage boosting, voltage control, active power management, and buck/boost operations.

The capacitor works by charging and discharging current in response to changes in the voltage on the device. The capacitor stores energy in the form of an electric field between its plates, and when the voltage across the plates changes, the stored energy is released. This energy is then used to regulate the current flow in the circuit.

Construction

The ECQ-B1H683JF3 is constructed of metallized polypropylene film. This thin film technology is designed to provide superior electrical properties over standard oxide film capacitors. By metallizing the polypropylene film, the ECQ-B1H683JF3 is able to provide excellent capacitance stability over temperature and frequency, along with an ultra-low ESR and ESL.

The ECQ-B1H683JF3 is housed in a frame which is designed to provide maximum heat dissipation and thermal protection. The film is wound with flexible strips of end lead material which is connected to the frame for mechanical strength and reliable electrical contact. The ECQ-B1H683JF3 is rated for an operating temperature range of –55°C to +105°C and is available in a variety of capacitance values.

Conclusion

The ECQ-B1H683JF3 is a versatile film capacitor that is designed for use in a wide variety of applications. From power factor correction circuits in switching power supplies to general purpose power supply applications, the ECQ-B1H683JF3 is well-suited for the job. With its metallized polypropylene film technology and low ESR, ESL ratings, the ECQ-B1H683JF3 provides superior electrical properties compared to traditional oxнide film capacitors. The ECQ-B1H683JF3 is available in several different capacitance values and can operate over a temperature range of –55°C to +105°C. With its efficient performance and robust design, the ECQ-B1H683JF3 is an excellent choice for power factor correction and general-purpose power supply applications.

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