ELF-25C005F

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Common Mode Chokes are widely used in wide range of applications as they are known for their ability to suppress common mode electric fields and external noise. They are mainly used to improve the electromagnetic compatibility (EMC) of a system. The ELF-25C005F, a common mode choke manufactured by TDK, is particularly designed for use in high current application fields.

The ELF-25C005F employs a unique internal construction of powdered iron cores, ferrite composition, and their associated winding structures. These materials are of high-uniformity and quality, resulting in a choking frequency of up to 150 MHz. This makes the ELF-25C005F suitable for use in high-frequency switching power supplies, with noise generated in the MHz range.

Due to the core properties of its material, the ELF-25C005F is capable of exhibiting an impedance maximum at 600MHz. This high impedance level is beneficial in reducing or isolating the EMC noise caused by impulse and switching noise in power lines. Furthermore, the ELF-25C005F has a rated current of 5A, which is suitable for applications with high levels of current.

In order to optimize the ELF-25C005F for certain application needs, several parameters can be altered. The rated current of the choke can be adjusted by changing the number of winds, and the mounting structure can also be tailored. This customizability allows the choke to be matched with the noise requirements of various systems and application fields. Additionally, by controlling the force of the spring clip, the ELF-25C005F can be used at higher frequencies for improved EMC performance.

The working principle of the ELF-25C005F is fairly simple. It works by introducing a magnetic field that opposes a current flowing through the common mode choke. When the current flowing through the windings induces an electromotive force, a magnetic field is created, which holds the electric lines in place, thus stopping them from causing EMC noise. The ELF-25C005F is well-suited to prevailing common mode noise, as the core materials and winding structures are designed to reduce the EMI radiation that might otherwise be present. With this, the ELF-25C005F provides superior electrostatic shielding and good common mode suppression.

The ELF-25C005F is an excellent choice for use in applications that require high-current loads and those that produce high levels of EMC noise. Its design is both efficient and effective, allowing it to meet the needs of the intended application field. By optimizing the choke properties, the ELF-25C005F can provide significant EMC performance, thus ensuring the utmost reliability for the system its attached to.

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