The Panasonic UNR9212GOL is a common mode choke coil designed to suppress unwanted noise and interference in electronic circuits. It is part of Panasonic's UNR series, known for its compact size and high performance in noise suppression applications. These chokes are commonly used to filter out common mode noise, which is a type of electrical interference that can disrupt the operation of sensitive electronic devices.

Applications

• Power supplies: Filtering noise from AC or DC power lines.
• Audio equipment: Reducing noise in audio signals.
• Data communication lines: Suppressing noise in Ethernet and USB connections.
• Consumer electronics: Improving the electromagnetic compatibility (EMC) performance of devices like TVs, set-top boxes, and gaming consoles.
• Industrial equipment: Filtering noise in industrial control systems and automation equipment.

Features

• Compact size: Allows for use in space-constrained applications.
• High common mode impedance: Provides effective noise suppression.
• Low differential mode impedance: Minimizes signal distortion.
• High current capability: Handles relatively large currents without saturation.
• Wide operating temperature range: Suitable for use in various environments.

Benefits

• Improved signal integrity: Reduces noise and interference, leading to cleaner signals.
• Enhanced EMC performance: Helps electronic devices meet regulatory requirements for electromagnetic compatibility.
• Increased system reliability: Protects sensitive components from noise-induced damage.
• Reduced design complexity: Simplifies noise filtering design compared to discrete component solutions.
• Lower overall cost: Offers a cost-effective solution for noise suppression.

Technical Specifications

While specific technical specifications like inductance, DCR (DC resistance), and rated current can vary slightly depending on the exact manufacturing batch, typical specifications for the UNR9212GOL series include:

• Inductance: Varies depending on the specific model, but typically in the range of a few millihenries (mH).
• DC Resistance (DCR): Low DCR to minimize power loss.
• Rated Current: Specified for continuous operation without saturation.
• Operating Temperature Range: Typically -40°C to +85°C.
• Dielectric Withstanding Voltage: Specifies the voltage the choke can withstand without breakdown.

Designers should consult the official Panasonic datasheet for the UNR9212GOL for the most accurate and up-to-date specifications.