The CDRH8D28NP-4R7NC-P is a shielded power inductor manufactured by Sumida America Components Inc. The 4R7NC designation indicates an inductance value of 4.7 µH. This series of inductors is designed for applications requiring high current handling and low EMI, typically found in power supplies and DC-DC converters.

Applications

• DC-DC converters
• Power supplies
• Voltage regulators
• Filtering circuits
• Automotive electronics

Features

• Shielded construction for low EMI
• High current handling capability
• Low DC resistance (DCR)
• Operating temperature range: -40°C to +125°C
• RoHS compliant

Benefits

• Reduced electromagnetic interference (EMI)
• Efficient power conversion
• Stable performance over temperature
• Compact design
• Reliable operation

Additional Details

Key specifications include the inductance (4.7 µH), DC resistance (DCR), saturation current (Isat), and rated current (Irms). The 8D28 designation refers to the dimensions of the inductor (approximately 8mm x 8mm footprint with a height of 2.8mm). Consult the Sumida datasheet for detailed specifications, performance curves, and recommended operating conditions. The shielded construction minimizes electromagnetic interference (EMI) and allows for high-density circuit board layouts. The saturation current (Isat) is the current at which the inductance drops by a specified percentage (e.g., 20%).