The RN1121202 is a common mode choke from Schaffner EMC Inc., designed to suppress common mode noise in various electronic applications. These chokes are crucial for reducing electromagnetic interference (EMI) and ensuring electromagnetic compatibility (EMC) in devices and systems.

Applications

• Power supplies
• Inverters
• Motor drives
• Lighting ballasts
• Data and signal lines
• Industrial automation equipment

Features

• High common mode attenuation
• Compact design
• Wide frequency range
• High rated current
• Excellent temperature stability
• RoHS compliant

Benefits

• Effective suppression of common mode noise, reducing EMI.
• Improved EMC performance, ensuring compliance with regulatory standards.
• Enhanced reliability and performance of electronic devices.
• Reduced interference with other electronic equipment.
• Helps in meeting stringent emission requirements.

Technical Specifications

While specific specifications may vary based on the exact model, common characteristics include:

• Inductance Range: Typically from a few mH to tens of mH.
• Rated Current: Ranges from several amps to tens of amps.
• Voltage Rating: Hundreds of volts AC/DC.
• Operating Temperature: -25°C to +125°C (typical).
• Dielectric Strength: Several kVAC.
• Termination Type: Through-hole or surface mount.

These chokes are constructed with high-quality ferrite core materials and windings to provide optimal performance. Their design minimizes parasitic capacitance and maximizes common mode impedance over a broad frequency range. Selecting the appropriate common mode choke is essential for achieving effective EMI suppression and ensuring the reliable operation of electronic systems.