The SLF1045T-221M-N is a shielded power inductor manufactured by Chilisin Electronics Corp. It's designed for use in DC-DC converters and power supplies where a compact size, high current handling, and low EMI are required. The shielding minimizes electromagnetic interference with other components.

Applications:

• DC-DC converters
• Power supplies
• Buck converters
• Boost converters
• Voltage regulators

Features:

• Shielded construction: Reduces electromagnetic interference (EMI).
• High current handling: Suitable for high-power applications.
• Low DC resistance (DCR): Minimizes power loss and improves efficiency.
• Compact size: Allows for high-density circuit designs.
• Operating temperature range: Generally suitable for industrial environments.

Benefits:

• Reduced EMI: Minimizes interference with surrounding components and circuits.
• Improved efficiency: Low DCR reduces power loss and heat generation.
• Stable performance: Reliable operation over a wide temperature range.
• Compact design: Saves board space in portable and densely packed devices.
• High saturation current: Handles large current spikes without significant inductance drop.

Specifications:

The SLF1045T-221M-N has an inductance value of 220µH (221). The tolerance is typically ±20% (M). The saturation current (Isat) and Irms values are crucial and should be obtained from the official datasheet, as they determine the inductor's ability to handle DC current and prevent core saturation. The DC resistance (DCR) is typically very low to minimize power loss. The operating temperature range is typically -40°C to +125°C. The physical dimensions are approximately 10mm x 10mm x 4.5mm (verify with the datasheet).

This shielded power inductor is a reliable and efficient component for a wide range of power electronics applications. Its compact size, high current handling, and low EMI make it a popular choice for DC-DC converters and power supplies. The shielded construction is particularly important in sensitive applications where minimizing electromagnetic interference is critical.