The A997AS-4R7M is a shielded power inductor manufactured by Toko America Inc. It is designed for use in a variety of power supply applications, offering a compact size and robust performance. This inductor is particularly suitable for applications requiring high current handling and low DC resistance.

Applications:

• DC-DC converters
• Power supplies for portable devices
• Voltage regulators
• EMI filtering
• Buck and boost converters

Features:

• High current handling capacity
• Low DC resistance (DCR)
• Compact size
• Magnetically shielded construction
• Surface mount design (SMD)

Benefits:

• Efficient Power Conversion: The low DCR minimizes power loss, resulting in higher efficiency in power conversion circuits.
• Reduced EMI: The shielded construction helps to reduce electromagnetic interference, ensuring stable and reliable operation.
• Space Saving: Its compact size allows for high-density mounting, making it suitable for portable and space-constrained applications.
• Reliable Performance: Designed for robust performance under various operating conditions.
• Easy Integration: The surface mount design simplifies the assembly process and reduces manufacturing costs.

Technical Specifications:

While specific technical specifications may vary slightly depending on the exact series and tolerances, typical parameters for similar Toko power inductors include inductance values around 4.7µH (indicated by 4R7M), saturation current ratings of several Amperes, and low DC resistance values in the milliohm range. Consult the manufacturer's datasheet for precise electrical characteristics, temperature ratings, and mechanical dimensions.

The A997AS series from Toko is designed to provide high performance and reliability in demanding power supply applications. Its combination of high current handling, low DCR, and compact size makes it an excellent choice for engineers designing efficient and compact power solutions.