ELF-18D290B

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Common Mode Chokes, also known as CM chokes, are electrical components that are used to reduce or eliminate common-mode currents that occur in electrical cables and connections. Common Mode Chokes are usually constructed from combinations of resistive, inductive and capacitive components that work together to reduce the common-mode voltage flowing in a system. In the context of a particular system, the Common Mode Choke works by reducing the commonmode voltage difference, by either absorb or canceling the commonmode current. This helps to reduce noise and interference in the system.

The ELF-18D290B is a Common Mode Choke used in digital signal processing applications. It is designed for power line and signal line applications, and is used to suppress common-mode noise from power line interference. It offers a wide common-mode bandwidth, which means it is suitable for a variety of applications, and is optimized for high current applications. It is also designed to work in very close proximity to digital circuits, and can be used in high-speed, low-jitter clock designs.

The ELF-18D290B has an operating frequency range of 10-100MHz and a rated current of 30mA. It has an inductance of 1.4nH and a resistance of 30 Ohms. It also features a DC current noise of less than 2mA, and a DC shield current leakage of less than 1mA. The ELF-18D290B also has a non-conductive body with a compact size of 18x12mm. The body is made of non-absorbent material, which prevents moisture build up, and increases its durability. It also has an operating temperature range of -40°C to +125°C.

In order to achieve its common-mode noise reduction goals, the ELF-18D290B uses a combination of inductance, capacitance, and resistance. The inductance is created by the winding of metal wire on a magnetic core. The core is typically constructed of ferrite material, which has a higher permeability than other magnetic materials. The capacitance is created by the winding of metal wire on a ceramic disc, which acts as a dielectric material. The resistance is created by the metal flat wire used in the winding of the core. The combination of these components helps to reduce the common-mode voltage difference in the system, and reduce the noise and interference levels.

Overall, the ELF-18D290B is a reliable Common Mode Choke that is designed for power line and signal line applications. It has a wide operating frequency range, and a high rated current. It also has low DC current noise, and a non-conductive body with a compact size. The combination of inductance, capacitance and resistance helps to reduce the common-mode voltage difference, and help reduce noise and interference levels. This makes the ELF-18D290B an ideal choice for digital signal processing applications.

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