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Film Capacitors

A film capacitor is a type of capacitor characterized by the use of plastic film as its dielectric material. Essentially, a film capacitor is just like any other capacitor, but the dielectric of a film capacitor is formed by thin plastic film rather than paper or mica. This type of capacitor offers several advantages, including low equivalent series resistance (ESR), high operating temperature range, high dielectric strength, wide range of capacitance values, and excellent tolerances.

MKP1848C71250JY5

The MKP1848C71250JY5 is a polypropylene film capacitor with screw terminal and has a frequency range from 0.1 Hz to 100 kHz. It is rated for 250 volts at a temperature range of - 40 °C to + 85 °C. It has an insulation resistance of > 5000 MΩ (at 20°C, 500V) and a dielectric absorption ratio of < 0.1% at 1 kHz. Its working principle is such that when a voltage is applied across its terminals, the dielectric film develops a polarized electrical field, resulting in a capacitance between the leads.

Application Field

The MKP1848C71250JY5 is mainly used in DC circuit applications such as power supplies, DC motor drivers, voltage regulators, DC-to-AC converters, and automotive electronics. In these applications, it can help filter the switching transients and suppress motor noises, as well as to improve the dynamic and transient response. In addition, it can be used in other applications such as audio and power amplification, delay lines, high voltage pulse suppression, and EMI suppression.

Conclusion

In conclusion, the MKP1848C71250JY5 is a type of polypropylene film capacitor which is commonly used in DC circuits and other applications such as audio amplifiers. It has a frequency range from 0.1 Hz to 100 kHz and an operating temperature range of - 40 °C to + 85 °C. It has a good insulation resistance of > 5000 MΩ (at 20°C, 500V) and a dielectric absorption ratio of < 0.1% at 1 kHz. Its working principle is such that when a voltage is applied across its terminals, the dielectric film develops a polarized electrical field, resulting in a capacitance between the leads.

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