The DS3316P-473 is a high-performance, shielded power inductor manufactured by Coilcraft. This inductor is designed for use in a wide range of power supply applications, offering excellent current handling capabilities and low DC resistance. The '473' likely indicates an inductance value of 47µH (microhenries), though the exact interpretation can depend on Coilcraft's specific marking conventions.

Applications

• DC-DC Converters: Used as an energy storage element in buck, boost, and other DC-DC converter topologies.
• Power Supplies: Employed in various types of power supplies, including switching power supplies and linear regulators.
• Voltage Regulators: Integrated into voltage regulator circuits to filter noise and provide stable output voltage.
• Filtering Circuits: Used as a filter component in power line filters and EMI/RFI filters.
• Energy Storage: Suitable for energy storage applications in portable devices and battery-powered systems.

Features

• High Current Handling: Designed to handle high current levels without saturation or overheating.
• Low DC Resistance (DCR): Offers low DCR, minimizing power losses and improving efficiency.
• Shielded Construction: Shielded design reduces electromagnetic interference (EMI) and radio frequency interference (RFI).
• Compact Size: Provides a compact size for space-constrained applications.
• Wide Operating Temperature Range: Operates over a wide temperature range, suitable for various environments.
• RoHS Compliant: Compliant with RoHS (Restriction of Hazardous Substances) directives, ensuring environmental friendliness.
• Surface Mount Technology (SMT): Designed for surface mount assembly on printed circuit boards.

Benefits

• Improved Power Supply Efficiency: Low DCR minimizes power losses and improves power supply efficiency.
• Reduced EMI/RFI: Shielded construction reduces electromagnetic interference and radio frequency interference.
• Compact Design: Small size allows for use in space-constrained applications.
• Reliable Performance: High current handling and wide operating temperature range ensure reliable performance.
• Environmental Compliance: RoHS compliance ensures environmental friendliness.

Additional Details

The DS3316P-473 inductor has specific saturation current and RMS current ratings. The saturation current is the current level at which the inductance begins to drop significantly. The RMS current is the continuous current the inductor can handle without exceeding its temperature rating. Detailed specifications, including inductance tolerance, DC resistance, saturation current, RMS current, and dimensions, can be found in the Coilcraft datasheet for the DS3316P series. Proper PCB layout is crucial for minimizing parasitic inductance and capacitance. The inductor should be placed close to other power components to minimize trace lengths.