BF014D0104J

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Film capacitors, also known as plastic film capacitors, are electronic components in which a dielectric film is used to store electric charge in an electric field. BF014D0104J film capacitor is a capacitor that uses polyethylene naphthalate (PEN) film as the insulation layer, plus aluminum or zinc-plated stainless steel foil as the electrode, and electrostatically deposits the metal film on the surface of the film to form a capacitor. The BF014D0104J film capacitor has a wide application range, especially in low-frequency applications. And they possess many advantages, such as small size, good insulation performance, high frequency stability, and resonance.

Application Field

The BF014D0104J film capacitor has a wide application range because of its superior electrical characteristics. Its main application fields are:

• 1. Power electronics: used for harmonic filtering, energy storage, pulse conversion, damping, snubber, and other power electrical circuits;
• 2. DC energy storage: used for energy storage and peak current compensation in communication systems;
• 3. Flat panel display: for the LCD power supply circuit and the film capacitor must pass the burn-in test and maintain a certain guarantee of reliability;
• 4. Communication electronics: used for attenuation, attenuation, and impedance matching;
• 5. Aerospace, railway and other related industries: used in inverter, converter, power supply, AWDC, rectifier, UPS, IPM, filter, etc.

Working Principle

The BF014D0104J film capacitor consists of four basic components: dielectric, electrode, frame, and outer-covering. The working principle mainly relies on the dielectric material used in the film capacitor, which is a PEN film. This PEN film acts as an insulator between the two electrodes and creates a barrier that electricity is unable to cross. When a voltage is applied across the PEN film, the electric field within the film causes electrons to accumulate on one side and an electric charge to build up. This in turn creates a dielectric polarization, resulting in a capacitance change. The capacitor then stores the charge as long as the electric field is applied and discharges when the voltage is reduced.

The BF014D0104J PEN film capacitor has the ability to self-heal when subjected to extreme voltage, which is one of the reasons why this type of capacitor is often used in a variety of applications. This self-healing process is done through a series of breakdown events wherein positive charges rush to the breakdown point within the film and “fill in” the gap until the voltage ceases. The dielectric is then restored to its original state without any further damage.

Conclusion

In conclusion, the BF014D0104J film capacitor is a reliable and durable option when it comes to low-frequency applications. Its self-healing feature ensures that the capacitor is able to withstand extreme voltages without sustaining any permanent damage. Its wide application range, small size, and good insulation performance make it a reliable capacitor for a variety of applications including power electronics, flat-panel displays, communication electronics, and aerospace or railway applications.

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