The CDRH4D28C-100NC-P is a shielded power inductor manufactured by Sumida America Components Inc. This component is designed for various power supply applications, offering a combination of compact size, high current handling capability, and effective EMI shielding. The “C” in the part number usually signifies a slightly different material or construction variation from the base model.

Applications

• DC-DC Converters: Suitable for buck, boost, and flyback converters in power regulation circuits.
• Power Supplies for Portable Devices: Used in smartphones, tablets, and other battery-powered devices.
• LED Lighting Drivers: Employed in LED drivers for current regulation and efficient power conversion.
• Filtering Applications: Used for noise filtering in power lines and signal circuits.
• Voltage Regulators: Providing stable voltage regulation in electronic devices and systems.

Features

• Shielded Construction: Minimizes electromagnetic interference (EMI) and reduces noise.
• High Current Capacity: Capable of handling high current levels without significant performance degradation.
• Low DC Resistance (DCR): Reduces power losses and improves efficiency.
• Compact Size: Allows for efficient use of PCB space, especially in portable devices.
• RoHS Compliant: Complies with Restriction of Hazardous Substances (RoHS) directive, ensuring environmental friendliness.

Benefits

• Reduced EMI: Shielded design minimizes electromagnetic interference, enhancing the performance of sensitive circuits.
• Efficient Power Conversion: Low DCR minimizes power losses, increasing overall system efficiency.
• Stable Performance: High current capacity ensures stable performance, even under demanding load conditions.
• Space Saving: Compact size allows for higher component density on the PCB.
• Reliable Operation: Robust construction and high-quality materials provide long-term reliability.

Additional Details

The CDRH4D28C-100NC-P has an inductance value of 10µH (100NC). The '4D28' indicates the approximate physical dimensions, usually around 4mm x 4mm footprint and 2.8mm height. Saturation current, RMS current, and self-resonant frequency (SRF) are important parameters to consider during design. Refer to the datasheet for detailed electrical characteristics, mechanical dimensions, and performance curves. Proper PCB layout is crucial to maximize performance and minimize losses. The “-P” suffix may indicate a specific packaging or termination type.