R73UI11004000J

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Film Capacitors

Film capacitors are a type of capacitor that are made from thin films of metal or polymer film. They are among the most popular types of capacitors due to their reliability, low cost, and wide range of applications. The R73UI11004000J is a film capacitor with a capacitance of 4,000pF, a test voltage of 175VAC, and an insulation resistance of 250 VDC.

Application field

The R73UI11004000J is suited for a variety of applications. It is popular in medical equipment, lighting fixtures, inverters, uninterruptible power supplies, telecom devices, and automotive applications. Its slim and low profile design is great for devices with limited space, making it a great solution for many different applications. The R73UI11004000J is also rated for 200VAC and is UL-approved for safety.

Working principle

The R73UI11004000J works like a conventional capacitor. It stores electrical energy in an electric field created between its two electrodes. When a voltage is applied to the capacitor, it is converted to an electric field between the plates, increasing the capacitance as a result. Conversely, when the voltage is removed, the charge stored in the capacitor is released and the capacitance decreases. The capacitor is said to be discharged and ready to be recharged again.

The R73UI11004000J uses a thin plastic film for its electrodes. This thin film provides a space for electrical charges to build up, reducing its leakage current compared to other types of capacitors, such as electrolytic capacitors. The thin film also gives the capacitor a better self-healing property, meaning it can repair itself from minor defects caused by voltage spikes.

In addition, the R73UI11004000J also features a very low ESL, or equivalent series inductance, which means it can pass high frequency signals with little to no noise or distortion. The low ESL also helps to reduce the amount of electromagnetic interference that the capacitor produces.

Finally, the R73UI11004000J is also very temperature stable. This is important, as it ensures the capacitor will have consistent performance over a wide range of temperatures.

Conclusion

The R73UI11004000J is a reliable and highly versatile film capacitor, suited for a wide variety of applications. It features a low profile design, low leakage current, low ESL, and temperature stability, making it an ideal solution for many applications that require a reliable, high-performance capacitor.

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