The CDH38D09SHPNP-100MC is a shielded power inductor manufactured by Sumida America Components Inc. It's designed for use in DC-DC converters and power supply circuits. The '100MC' designation indicates its inductance value, which is 10μH (microhenries). These inductors are characterized by their compact size, shielded construction for low EMI (electromagnetic interference), and high current handling capabilities.

Applications

• DC-DC Converters: Used in step-up (boost), step-down (buck), and inverting converters to store and release energy, thereby regulating the output voltage.
• Power Supplies: Found in various power supply units for electronic devices, providing filtering and energy storage.
• Portable Devices: Commonly used in smartphones, tablets, laptops, and other battery-powered devices where space is limited and efficiency is crucial.
• LED Lighting: Employed in LED driver circuits to regulate the current flowing through the LEDs, ensuring consistent brightness and longevity.
• Automotive Electronics: Utilized in various automotive systems, such as engine control units (ECUs), infotainment systems, and lighting systems.

Features

• Shielded Construction: Minimizes electromagnetic interference (EMI) and reduces noise.
• Compact Size: Small footprint allows for high-density circuit designs.
• High Current Handling: Capable of withstanding high current levels without saturation.
• Low DC Resistance (DCR): Reduces power losses and improves efficiency.
• Surface Mount Technology (SMT): Designed for automated assembly on printed circuit boards (PCBs).

Benefits

• Reduced EMI: Shielded construction minimizes interference with other sensitive components in the circuit.
• Space Saving: Compact size enables smaller and more portable electronic devices.
• Improved Efficiency: Low DCR reduces power dissipation and increases the overall efficiency of the power supply.
• Reliable Performance: High current handling capability ensures stable operation under demanding conditions.
• Simplified Assembly: SMT design allows for automated and cost-effective manufacturing.

Additional Details

The CDH38D09SHPNP-100MC inductor is typically constructed with a ferrite core and a wound copper wire. The ferrite core provides high permeability, which increases the inductance value. The shielded construction is achieved by enclosing the inductor in a metallic shield, which blocks electromagnetic radiation.

Typical Specifications:

• Inductance: 10 μH
• Tolerance: ±20% (check the datasheet for exact tolerance)
• DC Resistance (DCR): Low, typically in the mΩ range (check datasheet for exact value)
• Saturation Current: Specifies the current at which the inductance drops by a certain percentage (e.g., 10% or 20%).
• Rated Current: Specifies the maximum continuous current the inductor can handle without overheating.
• Operating Temperature Range: typically -40°C to +125°C

Always refer to the manufacturer's datasheet for the most accurate and up-to-date specifications and application recommendations. The datasheet will provide detailed information on electrical characteristics, mechanical dimensions, and recommended soldering profiles.