The SWPA3010S3R3MT from Sunlord is a shielded power inductor designed for use in a variety of power management applications. Its key features include a compact size and effective EMI shielding. The 3R3 designation refers to an inductance value of 3.3µH.

Applications

• DC-DC Converters: Ideal for step-up, step-down, and buck-boost converters.
• Power Supplies: Used in regulated power supplies for electronic devices.
• Mobile Devices: Suitable for smartphones, tablets, and portable electronics.
• LED Drivers: Provides stable current regulation for LED lighting applications.
• Point-of-Load (POL) Regulators: Enables efficient voltage regulation at the load.

Features

• Shielded Construction: Minimizes electromagnetic interference (EMI) for cleaner signal integrity.
• Compact Size: 3.0 x 3.0 x 1.0 mm footprint for space-saving designs.
• High Current Capacity: Handles significant DC current without saturation.
• Low DC Resistance (DCR): Reduces power losses and improves efficiency.
• Surface Mount Device (SMD): Facilitates automated assembly processes.

Benefits

• Improved Efficiency: Low DCR contributes to lower power dissipation and higher energy efficiency.
• Reduced EMI: Shielded design minimizes electromagnetic radiation and susceptibility.
• Space Saving: Compact footprint allows for denser circuit board layouts.
• Enhanced Reliability: Robust construction ensures stable performance in various environments.
• Simplified Assembly: SMD design allows for automated placement and soldering.

Additional Details

The SWPA3010S3R3MT inductor uses a ferrite core, which offers a good balance between inductance and saturation current. It's RoHS compliant, meaning it meets environmental standards for hazardous substances. It's designed for a standard operating temperature range, typically from -40°C to +125°C. The saturation current is approximately 1.6A, and the rated current is around 1.4A. In DC-DC converter circuits, the inductor smooths the current flow, minimizing ripple and improving overall regulation. This part is often chosen for applications where EMI is a concern, such as near sensitive analog circuitry.