The CDRH4D18-6R8 is a shielded power inductor manufactured by Sumida America Components Inc. It's designed for use in DC-DC converters and power supply circuits where a compact size and relatively high inductance are needed. The shielded construction helps to minimize electromagnetic interference (EMI) with other components.

Applications

• Step-down (Buck) converters: Efficiently reducing voltage levels in various electronic devices.
• Step-up (Boost) converters: Increasing voltage levels for applications like LED drivers or battery charging.
• Power supplies for portable electronics: Smartphones, tablets, and other mobile devices.
• Voltage regulators: Maintaining stable voltage outputs in electronic circuits.
• Filtering circuits: Smoothing out voltage or current waveforms to reduce noise.

Features

• Shielded construction: Minimizes electromagnetic interference (EMI).
• Compact size: Allows for use in space-constrained applications.
• High current handling capability: Can withstand significant current levels without performance degradation.
• Low DC resistance (DCR): Improves efficiency by reducing power loss due to resistance.
• 6.8 µH Inductance: Provides a specific inductance value suitable for particular circuit designs.

Benefits

• Reduced EMI: Shielded construction helps prevent electromagnetic interference, improving overall system performance.
• Efficient power conversion: Low DCR reduces power loss and improves the efficiency of the DC-DC converter.
• Reliable performance: High current handling ensures stable and reliable operation under various load conditions.
• Space-saving design: The compact size allows for use in densely populated circuit boards.
• Optimized inductance: The 6.8 µH inductance is suitable for specific switching frequencies and load requirements.

Technical Specifications

Specific electrical characteristics of the CDRH4D18-6R8 inductor include:

• Inductance: 6.8 µH (Microhenries)
• Tolerance: Typically ±20%
• DC Resistance (DCR): Low, typically in the milliohm range (consult datasheet for precise value).
• Saturation Current: Consult datasheet for specific value, typically a few Amperes.
• Operating Temperature Range: -40°C to +125°C (including self-heating).
• Dimensions: Approximately 4.8mm x 4.8mm footprint, with a height of approximately 2.0mm.

Always refer to the official Sumida datasheet for the CDRH4D18-6R8 for precise specifications and recommended operating conditions.