MKP1837410013

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Film capacitors

• MKP1837410013 application field and working principle

Film capacitors, also referred to as metallized film capacitors, are a type of capacitor characterized by a monolithic film made from a polycarbonate, polyamide, or polyolefin material dielectrically layered with an aluminum, zinc, or copper metalized evaporated film. Film capacitors are manufactured in a wide variety of shapes, styles, dimensions, and packages providing designers with a broad range of possible applications for the components, including DC blocking, interference suppression, energy storage, timing and charging applications.

The MKP1837410013 is a polypropylene (PP) film capacitor designed for use in general purpose, DC blocking, interference suppression, energy storage, timing and charging applications operating in environments with a temperature range of -55°C to +85°C. This specific capacitor is designed with an operating voltage range of up to 160 VDC and a rated capacitance of 1 μF (microfarad).

Film capacitors are often used in electronic components for applications such as signal processing, audio electronics, instrumentation and medical electronics. Additionally, the commonode construction of these capacitors enables them to withstand twice the peak power compared to standard bipolar capacitors.

The working principle of film capacitors is based on the dielectric properties of the material used in the film capacitor. The film layers are arranged to form an electric field where the stored electric charge is increased and decreased as an input voltage is applied. This increases and decreases the electric field between the two film layers, generating an electric current between the two films.

In operation, the electric charge generates an electric field in the dielectric film, and the generated electric field produces an opposing voltage, which is fed back to the voltage source. This regenerated voltage is used to reduce the current flow from the voltage source and helps maintain the current flow and voltage level on the circuit. As the external voltage decreases, the capacitance of the film decreases, allowing the capacitor to dissipate the incoming electric current.

The MKP1837410013 offers an operating frequency range of 0.1 MHz to 1 MHz. At 105°C, the capacitor withstands an internal current of 300 mA and a surge current of 2.5 A. The MKP1837410013 has a dielectric loss factor of 0.1 % and a dielectric strength of 200 V. The rated ripple current of the capacitor is 3.5 mA.

Film capacitors are an attractive alternative to traditional electrolytic, ceramic, and tantalum capacitors, providing low ESR, long lifespan, low inductance, low residual voltage, and excellent surge performance. The MKP1837410013 capacitor is an ideal component for high frequency switching power supplies, inverters, and general purpose DC blocking, interference suppression, energy storage, timing and charging applications.

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