4403-007LF

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Capacitors play a critical role in the electronic industry, providing power to a circuit, and allowing low-frequency current to pass through while blocking high-frequency current. Feed through capacitors, like the 440-007LF, offer many advantages in this field, including their small size and enhanced performance. In this article, we will review the application fields and working principles of the 440-007LF feed through capacitor.

Application Fields of the 440-007LF

The 440-007LF feed through capacitor is a small, yet effective, component used primarily for a wide range of RF and telecommunications applications. It features a very low Inductance of less than 0.3 nH, making them suitable for very high frequencies (100MHz~2GHz). Additionally, it features an ultra high self-resonant frequency, while maintaining extremely low ESR and ESL values. This makes them ideal for use in narrow-band filters and lightweight antennas.

The 440-007LF is also suitable for use in portable and mobile electronic devices. It features high level impedance control, and features a low lead-inductance by virtue of its PWB mounting, as well as low EMI radiation. These features make it ideal for use in components with wireless standards such as GSM, CDMA, WCDMA, PCS, and LTE. It is also suitable for use in consumer electronics, such as laptops, personal digital assistants (PDAs), and mobile phones.

Working Principle of the 440-007LF

The 440-007LF feed through capacitor operates on a straightforward principle. When DC power is applied to the capacitor, an electric field is created between the two electrical plates that make up the capacitor. This electric field creates a capacitance between the two plates, and this capacitance can store a charge between the two plates.

The capacitance of the 440-007LF is fixed, so its behaviour is predictable. When alternating current is applied to the capacitor, the charge is stored, and then released. This effect is responsible for filtering out AC signals, allowing low-frequency current to pass through while blocking high-frequency current. This makes them suitable for use in RF and telecommunications applications, where low-frequency signals must be allowed to pass, while high-frequency signals are blocked.

The 440-007LF is also designed to reduce EMI radiation, due to its efficient energy storage and dissipation. This helps to ensure that the device does not interfere with other devices, such as medical devices or navigation systems.

In summary, the 440-007LF feed through capacitor is a versatile device that can be used for a variety of low-frequency applications. This is due to its low self-resonance, fast switching, and high level impedance control. It is suitable for use in various consumer electronic devices, as well as RF and telecommunications applications.

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