B32653A3754J289

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Introduction: Film Capacitors

Film capacitors, also known as film dielectric capacitors, are characterized by having a thin layer of dielectric material, usually polyester or polycarbonate, sandwiched between two conductive plates. The dielectric material gives these capacitors superior stability, temperature coefficient, and dielectric absorption properties compared to other capacitor types. Film capacitors come in both cylindrical and rectangular shapes.

B32653A3754J289 application field and working principle

The B32653A3754J289 is a type of film capacitor used in power electronics applications. It is a cylindrical film capacitor with a radial lead connection and is designed to be used in DC link capacitors, motor starters, and power supplies. It has a small size and footprint, making it a good choice for use in applications where space is at a premium. The B32653A3754J289 has a dielectric strength of 6.5 kV and a capacitance range of 0.15 µF to 440 µF.

The main working principle behind these capacitors is called electrostatic fields. The dielectric material between the conductive plates creates an electrostatic field between them when a voltage is applied. This electrostatic field causes a buildup of electric charge, which stores energy in the capacitor. This stored energy can then be discharged when the voltage is removed, providing an instantaneous voltage or current pulse.

The B32653A3754J289 has a rated voltage of 400 Vdc, and a temperature coefficient of ±200 PPM/K. It is an extremely reliable capacitor with long-term stability and life, and can be used in temperatures ranging from -40°C to 85°C, with an extended temperature rating of -60°C to 125°C. The capacitor is also surge (peak current) resistant and can withstand short-term peak inrush currents of 2x the rated current. The capacitor also has a self-healing property, which prevents it from short-circuiting in the event of a breakdown due to excessive current or voltage.

Conclusion

The B32653A3754J289 is a reliable and stable type of film capacitor that can be used in a variety of power electronics applications. Its small size and footprint make it an ideal choice for applications where space is a concern. Its long-term stability and surge resistance make it a great choice for applications that require reliable performance in harsh environments. With its wide capacitance range, temperature range, and self-healing property, the B32653A3754J289 is a great choice for those looking for a reliable and cost-effective solution for their power electronics requirements.

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