Film Capacitors

Film capacitors, also known as plastic dielectric capacitors are a type of capacitor that uses a plastic film as its dielectric, usually polyethylene terephthalate (PET). They are well suited for applications requiring very small capacitors with high temperature stability, large capacitance values, and precise capacitance/tolerance tolerances, as well as low ESR (Equivalent Series Resistance). In particular, they are used in automotive and power electronics, such as rectifiers, lithium ion batteries, and power inverters.

DMT2P22K-F application field and working principle

The DMT2P22K-F is a film capacitor manufactured by Schurter, and is a highest-performance cap that meets all the requirements of an automotive and power electronics application. It is a no-voltage release, self-healing device with a long lifetime that is highly resistant to temperature stress and aging. The DMT2P22K-F has a high capacitance value in the range of 2-4µF and low ESR. It has a low self-resonance frequency of less than 30kHz and is highly stable.

The basic working principle of a film capacitor is that two conductive plates, separated by an insulating dielectric material, are exposed to an electric potential. The insulating material stores electrical charge between the plates while allowing the Easy flow of current between them. As the voltage increases, the capacitance increases due to a decrease in the dielectric constant of the film. The DMT2P22K-F is designed for applications requiring a high capacitance and a high temperature endurance.

The DMT2P22K-F is suitable for a variety of automotive and power electronics applications, due to its high capacitance and low loss characteristics. The capacitor can be used in applications such as power supplies, rectifiers, voltage converters, lithium ion batteries, inverters, and more. The film capacitor is also suitable for high-voltage and high-current applications that require a high degree of reliability, stability, and safety.

The DMT2P22K-F is considered the ideal and most reliable choice of film capacitor for automotive and power electronics applications. It is designed to offer a long operational life with a high degree of stability and reliability, as well as low ESR and capacitance values. The DMT2P22K-F is also highly resistant to temperature stress and aging. With its wide range of applications and features, this film capacitor is the perfect solution for automotive and power electronics applications.