The DRA124-2R2-M is a power inductor manufactured by Cooper Bussmann (now Eaton). It is designed for use in various power supply and filtering applications. These inductors are commonly used to store energy and smooth out current flow in electronic circuits. The DRA series is known for its compact size and robust performance.

Applications:

• DC-DC converters: Used as an energy storage element in step-up (boost), step-down (buck), and other DC-DC converter topologies.
• Power supplies: Found in linear and switching power supplies to filter noise and regulate current.
• EMI filtering: Used to suppress electromagnetic interference (EMI) in electronic circuits.
• LED lighting: Employed in LED drivers to regulate current and ensure stable light output.
• Portable devices: Utilized in smartphones, tablets, and other portable devices for power management.

Features:

• Shielded construction: Reduces electromagnetic interference (EMI) and minimizes noise.
• High current capability: Designed to handle high current levels without saturation.
• Low DC resistance (DCR): Minimizes power loss and improves efficiency.
• Compact size: Small footprint allows for use in space-constrained applications.
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits:

• Improved power supply efficiency: Low DCR minimizes power loss, resulting in higher efficiency.
• Reduced EMI: Shielded construction reduces electromagnetic interference, improving system performance.
• Stable operation: High current capability ensures stable performance under varying load conditions.
• Smaller device size: Compact size allows for the development of smaller and more portable electronic products.
• Enhanced reliability: Robust construction ensures long-term performance and durability.

Specifications:

Specific specifications for the DRA124-2R2-M typically include:

• Inductance: 2.2 µH (Microhenries)
• Tolerance: Typically ±20%
• DC Resistance (DCR): Specified in milliohms (mΩ). A low DCR is desirable.
• Saturation Current: The maximum current the inductor can handle before its inductance drops significantly.
• Rated Current: The continuous current the inductor can handle without overheating.
• Operating Temperature Range: Typically -40°C to +125°C
• Package Size: Determined by the DRA124 designation. Consult the datasheet for specific dimensions.

Designers should consult the Cooper Bussmann (Eaton) datasheet for the DRA124-2R2-M to ensure correct implementation and performance in their specific application. It's important to check the rated current and saturation current to ensure the inductor can handle the expected load.