The DLP31DN551SL2L is a common mode choke coil manufactured by Murata Electronics. Common mode chokes are used to suppress common mode noise in electronic circuits. They are particularly effective in filtering out unwanted signals that are common to multiple lines, such as those found in power lines and data communication cables.

Applications:

• Power Line Filtering: Suppression of common mode noise in AC and DC power lines.
• USB and Data Line Filtering: Reduction of EMI/RFI on USB, HDMI, and other data cables.
• Signal Line Noise Reduction: Minimizing noise in signal lines to improve signal integrity.
• Electronic Equipment: Used in a wide range of electronic devices to meet EMC (electromagnetic compatibility) requirements.
• Industrial Equipment: Noise suppression in industrial automation and control systems.

Features:

• High Common Mode Impedance: Provides effective attenuation of common mode noise.
• Low Differential Mode Impedance: Minimizes signal distortion in differential mode signals.
• Compact Size: Small footprint for space-constrained applications.
• Surface Mount Technology (SMT): Designed for automated assembly.
• RoHS Compliant: Environmentally friendly and lead-free.

Benefits:

• Effective Noise Suppression: Reduces EMI/RFI noise for improved circuit performance.
• Improved Signal Integrity: Minimizes signal distortion for more reliable data transmission.
• Enhanced EMC Performance: Helps electronic devices meet regulatory EMC requirements.
• Easy Integration: Surface mount design simplifies assembly process.
• Compact Design: Suitable for use in small and portable devices.

Additional Details:

The DLP31DN551SL2L common mode choke consists of two magnetically coupled inductors wound on a single core. This configuration allows it to effectively attenuate common mode currents while having minimal impact on differential mode signals. The specific impedance characteristics, current rating, and package size can be found in the Murata datasheet.