The Panasonic UNR921AGOL is a common mode choke coil designed to effectively suppress common mode noise in electronic circuits. It is part of Panasonic's UNR series, known for its compact size and high performance in noise filtering applications. Common mode chokes are essential for reducing electromagnetic interference (EMI) and improving the electromagnetic compatibility (EMC) of electronic devices, preventing unwanted noise from disrupting their operation.

Applications

• Power Supplies: Used for filtering noise from incoming AC power lines or DC power distribution systems.
• Data Communication Lines: Suppresses noise on data lines such as USB, Ethernet, and other high-speed communication interfaces.
• Audio and Video Equipment: Improves the quality of audio and video signals by reducing noise in signal paths.
• Industrial Automation: Protects sensitive control circuits from noise in industrial environments, enhancing system reliability.
• Consumer Electronics: Enhances the performance of various consumer electronics devices like TVs, computers, and mobile devices.

Features

• Compact Size: Enables easy integration into space-constrained applications.
• High Common Mode Impedance: Provides excellent attenuation of common mode noise signals.
• Low Differential Mode Impedance: Minimizes signal distortion and preserves signal integrity.
• Wide Frequency Range: Effective across a broad range of noise frequencies.
• RoHS Compliant: Meets environmental standards for hazardous substances, ensuring environmental responsibility.

Benefits

• Improved EMC Performance: Helps electronic devices meet regulatory requirements for electromagnetic compatibility.
• Enhanced Signal Integrity: Reduces noise and interference, resulting in clearer and more reliable signals.
• Increased System Reliability: Protects sensitive electronic components from noise-induced damage, improving overall system reliability.
• Simplified Design: Simplifies noise filtering compared to using discrete components, streamlining circuit design.
• Cost-Effective Solution: Provides a cost-efficient way to suppress common mode noise in electronic circuits.

Technical Specifications

Specific technical details such as inductance, DC resistance (DCR), rated current, and operating temperature range for the Panasonic UNR921AGOL are available in the official Panasonic datasheet. Key parameters to consider include:

• Inductance: The inductance value determines the choke's ability to impede AC current flow and suppress noise.
• DC Resistance (DCR): Lower DCR values minimize power loss through the choke.
• Rated Current: The maximum current the choke can handle without saturating.
• Operating Temperature Range: The acceptable temperature range for reliable operation.
• Dielectric Strength: The maximum voltage the choke can withstand without breakdown.

Always consult the official Panasonic datasheet for the UNR921AGOL for precise and up-to-date technical specifications when designing electronic circuits.