The B82790S253N201 is a common mode choke designed and manufactured by EPCOS, a TDK Group company. These chokes are used to suppress unwanted common-mode noise in electronic circuits, crucial for ensuring electromagnetic compatibility (EMC) and improving signal integrity. They are commonly employed in various applications to filter out noise that can interfere with the proper functioning of electronic devices.

Applications

• Switching power supplies
• Frequency converters
• Inverters
• Motor drives
• Data and signal lines
• Consumer electronics

Features

• High common-mode attenuation
• Low differential-mode impedance
• Compact design
• Wide frequency range
• RoHS compliant
• High insulation voltage
• Excellent temperature stability

Benefits

• Effective suppression of common-mode noise
• Improved electromagnetic compatibility (EMC)
• Enhanced signal integrity
• Reduced interference in electronic circuits
• Compliance with regulatory standards
• Reliable performance in harsh environments
• Easy integration into existing designs

Additional Details

The B82790S253N201 common mode choke is constructed with two or more identical windings on a single core. This configuration allows the choke to exhibit high impedance to common-mode currents, while presenting minimal impedance to differential-mode currents. Common-mode currents are those that flow in the same direction on multiple conductors, whereas differential-mode currents flow in opposite directions. By selectively attenuating common-mode noise, the choke helps to prevent interference from affecting sensitive electronic components.

The choke's core material is typically a ferrite composition optimized for high permeability and low losses over a wide frequency range. The construction is designed to provide high insulation voltage to ensure safety and prevent electrical breakdown. These chokes are critical components in modern electronic devices, helping to maintain signal quality and comply with stringent EMC requirements.