The Panasonic UNR9218JOL is a common mode choke coil specifically designed to suppress common mode noise in electronic circuits. It belongs to Panasonic's UNR series, which is recognized for its compact size and effectiveness in reducing electromagnetic interference (EMI) and enhancing electromagnetic compatibility (EMC). These chokes are vital for ensuring signal integrity and preventing unwanted noise from disrupting the operation of electronic devices.

Applications

• Power Supplies: Used to filter noise from AC or DC power lines entering electronic equipment.
• Data Communication: Suppresses noise on data lines such as USB, Ethernet, and other communication cables to improve signal quality.
• Audio Equipment: Reduces noise in audio circuits, leading to clearer and more accurate sound reproduction.
• Video Equipment: Filters noise in video signals, improving image clarity and reducing distortion.
• Consumer Electronics: Enhances the overall EMC performance of devices like TVs, computers, and mobile devices.

Features

• Compact Size: Allows for easy integration into space-constrained applications.
• High Common Mode Impedance: Provides effective attenuation of common mode noise.
• Low Differential Mode Impedance: Minimizes signal distortion and preserves signal integrity.
• Wide Operating Frequency Range: Operates effectively across a broad spectrum of noise frequencies.
• RoHS Compliant: Complies with environmental regulations regarding hazardous substances.

Benefits

• Improved EMC Performance: Helps electronic devices meet regulatory requirements for electromagnetic compatibility.
• Enhanced Signal Integrity: Reduces noise and interference, resulting in cleaner and more reliable signals.
• Increased System Reliability: Protects sensitive electronic components from noise-induced damage.
• Simplified Design: Simplifies noise filtering design, reducing the need for complex discrete component solutions.
• Cost-Effective Solution: Provides a cost-efficient method for suppressing common mode noise.

Technical Specifications

Specific technical details for the Panasonic UNR9218JOL, such as inductance, DC resistance (DCR), rated current, and operating temperature range, can be found in the official Panasonic datasheet. Important specifications include:

• Inductance Value: Determines the choke's ability to block AC current and suppress noise.
• DC Resistance (DCR): Represents the resistance of the choke's winding, affecting power loss.
• Rated Current: Specifies the maximum current the choke can handle without saturating or overheating.
• Operating Temperature Range: The acceptable temperature range for reliable operation.
• Withstanding Voltage: The maximum voltage the component can withstand without dielectric breakdown.

For accurate and up-to-date technical specifications, consult the official Panasonic datasheet for the UNR9218JOL when designing electronic circuits.