ELF-18D650C

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Common Mode Chokes, also known as Common Mode Filters, are a type of inductor or transformer designed to suppress electromagnetic interference (EMI) on power lines by blocking the common mode conductors from distributing the common-mode noise to the other conductors. They are generally used in applications involving power electronics, automotive systems, electronics manufacturing, and control systems. Specifically, ELF-18D650C is a common-mode differential-mode choke that provides excellent common and differential mode noise suppression from 100 kHz to 650 MHz with a minimum of 7 dB insertion loss across the entire frequency range.

The ELF-18D650C operates on a principle similar to other common-mode chokes, where the core is made up of two separate windings which are connected in series. The choke is effective at blocking Common Mode Noise (CMN) and Differential Mode Noise (DMN). The common-mode choke works by restricting the flow of CMN between the power source and the load. The choke absorbs the CMN via the core of the choke and the differences between the two windings. These differences in the windings create a high impedance path to the CMN, which blocks the CMN from reaching the load.

The ELF-18D650C is designed to be used in applications such as switch-mode power supplies, DC-DC converters, motor drives, servo drives, and other power electronics devices. It is also ideal for suppressing noise on data and telecommunications lines, consumer electronics, and other applications. It features a 10A current rating, 2.2uH inductance, and is temperature stable from -55°C to +125°C. The ELF-18D650C also features a RoHS compliant construction, ensuring safe use and easy recycling.

In order to install the ELF-18D650C, the user must first identify the correct terminals on the choke. Typically, the two terminals will be labeled A and B. The first terminal, A, is typically connected to the power source or power line, and the second terminal, B, is usually connected to the load or the power line sensitive to noise. The ELF-18D650C can also be used to suppress noise on data and telecommunications lines such as Ethernet, USB, and Bluetooth.

The ELF-18D650C provides excellent noise suppression performance across its entire frequency range and is highly effective at suppressing both common-mode and differential-mode noise. Its rated current and temperature ratings make it ideal for a variety of applications. Its RoHS compliant construction ensures safe use and easy recycling. With the ELF-18D650C, users can enjoy excellent noise suppression and a long service life.

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