4400-094LF

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Feed through capacitors are device solutions that correct power disturbances and electrical noise interference. The 4400-094LF by Cornell Dubilier is commonly used for this purpose. It is useful for a variety of applications, from power conditioning to safety systems within various industries. This article will provide an overview of the 4400-094LF application fields and its working principle.

Application fields
The 4400-094LF is ideal for power conditioning and safety systems in the medical field, aerospace, military, and communication systems where low EMI, power back-up, and control of power line transient voltage is critical. It is also an excellent solution for high frequency applications such as motor drives, solenoid control, switch mode power supplies, and even alarm systems which are susceptible to power line transients.

The device can also be used in ground loop isolation applications such as between amplifiers and intercom systems, and between PC’s and medical diagnostic equipment. The 4400-094LF’s ability to eliminate power line transients also makes it a great solution for robotics and automation, factory automation, office equipment, and gas and liquid monitoring.

Working principle
The 4400-094LF feed through capacitor works by creating a capacitive electric field to filter out voltage disturbances and control signal waveform. Within the capacitor package, two metallic disks are separated by ceramic or mica insulation. External capacitors are connected between the two disks to create a voltage-controlled, adjustable, capacitive electric field. This field is capable of filtering out any unwanted DC or AC currents while still allowing the passage of other desired signals.

The 4400-094LF feed through capacitor is designed with a shielded enclosure which helps to provide improved EMC noise immunity. This makes it an excellent choice for applications where voltage disturbances and EMC noise may be present. The elimination of voltages and current disturbances helps to reduce failure rates in critical components and prolongs the life expectancy of the capacitor.

Conclusion
The 4400-094LF feed through capacitors are an ideal solution for power conditioning, power line transients, and EMC noise immunity. It is useful in a wide variety of applications, from medical to aerospace, that require reliable high frequency performance and protection from voltage transients. The 4400-094LF works by using a capacitive electric field to filter out undesirable signals while still allowing passage of desired signals. For this reason, the feed through capacitor is the perfect choice for applications in which signal integrity and power conditioning is of the utmost importance.

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