ELF-18D609

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Common mode chokes are a form of electromagnetic interference (EMI) filters which reduce and eliminate electrical interference or noise in direct current (DC) circuits and AC circuits. The ELF-18D609 is a common mode choke offering EMI solutions for system designs that require preventive measures against the interference of the power line such as adapters, industrial equipment, lighting, home appliances, automotive, and medical equipment. With an 18A rated current, the ELF-18D609 is a large-current, common-mode filter.

The ELF-18D609 is a common mode filter choke with a high-flux ferrite core and low-resistance copper windings. It is designed to reduce interference in circuits that use voltage-doublers, DC-DC converters, power regulators, DC motors, and switching systems. The ELF-18D609 is ideal for high-intensity applications with high current and high EMI.

The working principle of the ELF-18D609 is simple. The choke consists of a magnetic material with windings wrapped around it. The windings are connected in parallel with the conductors in the circuit, forming a large inductor.

When AC current flows through the choke, the magnetic field generated by the current induces a voltage in the windings. This voltage is in opposite direction to the current, thus cancelling out the electric field established by the current. This cancels out any noise an AC signal would introduce, and thus reduces EMI. Also, the choke\'s inductance limits current, thus protecting the circuit from overcurrent or excessive power.

The ELF-18D609 provides a wide array of features which makes it an ideal component for EMI solutions in system designs that require preventive measures against the interference of the power line. It has a rated current of 18A, a variety of sizes available (from 25mm to 40mm), a low magnetic series resistance (less than 4mΩ), and a wide range of operating temperatures (from -20°C to +105°C). It is also RoHS compliant.

The ELF-18D609 is a suitable component for system designs that require EMI solutions to reduce and eliminate electrical noise. It offers benefits such as high-current operation, a low magnetic series resistance, and a wide range of operating temperatures. Its working principle is simple and straightforward, making it an excellent choice for applications that require EMI control and noise attenuation.

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