21FD37175

Introduction

A film capacitor is an electronic component that stores electrical energy in the form of an electrostatic field. It is composed of two electrodes which are separated by a dielectric film. The dielectric film is usually a polymer material such as polyester, polycarbonate, or teflon. Its fundamental operating principle is based on the capacitance effect, which is the ability of an electric field to store energy in an electric field.

21FD37175 Application Field and Working Principle

The 21FD37175 film capacitor is a series of film capacitors designed for power pulse applications in the medical, military, aerospace and other portable and consumer electronic devices. It boasts a voltage rating of up to 1000 VDC with temperature ratings of up to 125°C (257°F) and pulse power ratings up to 30 kW. The film capacitors are available in a variety of different capacitance values and configurations, with the most popular being the standard polystyrene version and the insulated capacitor.

The basic working principle of the 21FD37175 capacitor involves the electrical field established within the film by the applied voltage. When the capacitor is charged, the electrical energy stored within the film produces an oppositely charged electrostatic field. This field is connected to the capacitor’s terminals and the voltage produced by this field is the capacitor’s output voltage.

Moreover, as the voltage applied to the capacitor increases, the electrical field in the capacitor also increases and stores more energy. This increased energy storage allows the capacitor to provide a higher overall capacitance (C), which can be useful in a power pulse applications. As a last advantage, by storing energy in its dielectric material, the film capacitor reduces or eliminates arcing which can occur in other capacitors due to high electric shock.

Conclusion

The 21FD37175 film capacitor is a versatile component that can be used in a variety of power pulse applications. Its ability to store more energy due to its high capacitance and eliminate arcing due to its dielectric film make it an ideal choice for many electronics applications. Furthermore, it is also available in a variety of capacitance values and configurations, making it easy to match with any design.