The B82787C513H2 is a common mode choke manufactured by EPCOS (TDK). Common mode chokes are used to suppress common mode noise in electronic circuits. Common mode noise is unwanted electromagnetic interference (EMI) that appears on both signal lines simultaneously with respect to ground. This noise can interfere with the operation of electronic devices and can also radiate out, causing interference with other devices.

Applications

• Power Supplies: Used in power supplies to suppress common mode noise from the AC power line.
• Data Communication Lines: Employed in USB, Ethernet, and other data communication lines to reduce EMI and improve signal integrity.
• Audio and Video Equipment: Used in audio and video equipment to suppress noise and improve the quality of the signals.
• Motor Drives: Employed in motor drives to reduce EMI generated by the motor.
• Industrial Equipment: Used in industrial control systems and other industrial equipment to suppress noise and improve reliability.

Features

• High Common Mode Impedance: Provides high impedance to common mode noise, effectively suppressing it.
• Low Differential Mode Impedance: Exhibits low impedance to differential mode signals, allowing them to pass through with minimal attenuation.
• Compact Size: Available in a small package, saving valuable board space.
• High Current Capability: Can handle high current levels.
• Wide Frequency Range: Effective over a wide frequency range.

Benefits

• Reduced EMI: Suppresses common mode noise, reducing EMI and improving the EMC (electromagnetic compatibility) performance of electronic devices.
• Improved Signal Integrity: Reduces noise on data communication lines, improving signal integrity and reliability.
• Enhanced Audio and Video Quality: Reduces noise in audio and video equipment, improving the quality of the signals.
• Increased System Reliability: Reduces noise in electronic systems, increasing their reliability.
• Compliance with EMC Standards: Helps electronic devices meet EMC standards.

The B82787C513H2's specific characteristics, such as impedance at various frequencies, current rating, and package dimensions, are detailed in the EPCOS (TDK) datasheet. Selecting a suitable common mode choke requires considering the frequency range of the noise to be suppressed, the current level, and the desired impedance characteristics. Common mode chokes are an essential component in many electronic devices for ensuring EMC compliance and reliable operation.