CDV30FJ161JO3F

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Mica and PTFE Capacitors

The CDV30FJ161JO3F is a mica and PTFE capacitor that is designed with a dielectric construction, consisting of a PTFE (“Polytetrafluoroethylene”) base and a mica dielectric layer. It can combine high capacitance and high voltage ratings in a small form factor making it ideal for a variety of applications.

Application Field

This capacitor is an ideal part for small-form-factor applications which require a high voltage rating and high capacitance. It can be used in DC-DC power supplies, energy storage, power management, and other high voltage DC power systems. While this is a surface-mount component, special mounting techniques can be used to secure the part in applications where size is at a premium.

Due to its dielectric, it can also be considered a specialty part for applications in high voltage DC isolation and coupling. This capacitor can be employed in power line filters and snubber circuits owing to its high capacitance. This makes it ideal for applications in power electronics.

Working Principle

Mica and PTFE capacitors use an interleaved construction which is composed of a PTFE base film, mica dielectric layers, and outer metallic electrodes. The PTFE base attempts to even out voltage gradients as much as possible, and the mica helps to achieve a high capacitance value in a small form factor. Together they provide a reliable and efficient high voltage capacitor.

When the metal electrodes are applied to the PTFE and mica layers, they form an electrical field between them. This field is partially screened by the electrostatic field of the mica layers, and the PTFE substrate. The capacitor stores energy between the two electrodes as electrical charge, and provides a very low electrical resistance to the current passing between them.

It is this dielectric coupled with the PTFE base that allows for high voltage ratings in a small form factor. The mica is also highly resistant to breakdown and offers stable capacitance performance over a wide temperature range, providing a reliable capacitor across many applications.

Conclusion

In conclusion, the CDV30FJ161JO3F mica and PTFE capacitor offers a relatively small form factor for applications which require high voltage ratings and high capacitance in a small package; this makes the part ideal for a range of applications from DC-DC power supplies to line filters and snubber circuits. Owing to the robust dielectric construction, this capacitor can provide reliable power even during extreme conditions.

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