The MSRH4D28-220MT is a molded shielded power inductor manufactured by Meled. It is designed for use in DC-DC converters and power supply applications where high efficiency and low EMI (Electromagnetic Interference) are required. The '4D28' likely refers to the physical dimensions of the inductor, and '220MT' signifies an inductance value of 22µH with a certain tolerance.

Applications:

• DC-DC Converters: Used as an energy storage element in buck, boost, and other DC-DC converter topologies.
• Power Supplies: Employed in power supplies for filtering and energy storage.
• Voltage Regulators: Integrated into voltage regulator circuits for stable voltage output.
• LED Lighting: Used in LED drivers for current regulation and filtering.
• Portable Devices: Found in portable devices such as smartphones, tablets, and laptops for power management.

Features:

• Inductance Value: 22 µH.
• Shielded Construction: Molded shielded construction for low EMI.
• High Current Capacity: Designed for high current applications.
• Low DC Resistance (DCR): Low DCR for high efficiency.
• Compact Size: Small footprint for space-constrained applications.
• Surface Mount Device (SMD): Designed for surface mount assembly.

Benefits:

• Reduced EMI: Shielded construction minimizes electromagnetic interference.
• High Efficiency: Low DCR reduces power losses and improves efficiency.
• Compact Design: Small size allows for dense circuit board layouts.
• Stable Performance: Delivers stable performance over a wide temperature range.
• Reliable Operation: Offers reliable operation and long-term stability.

Additional Details:

The MSRH4D28-220MT is designed for automated surface mount assembly processes. Its saturation current and Irms (RMS current) ratings are crucial parameters to consider, as they determine the inductor's ability to handle high currents without significant inductance drop or overheating. The datasheet provides information on the inductor's operating temperature range, Q-factor, and self-resonant frequency (SRF). The shielded construction helps to prevent interference with other components in the circuit. Proper soldering techniques are essential to ensure reliable connections and prevent damage to the inductor. The 'MT' suffix likely indicates the tolerance of the inductance value. Core material and winding techniques contribute to the inductor's overall performance. This is a suitable option for designs needing a compact, efficient, and low-EMI inductor.