CIGW404020KM1R0MLF

Fixed Inductors Overview

The CIGW404020KM1R0MLF is a shielded wirewound power inductor from Samsung Electro-Mechanics, designed for surface-mount applications. It features a metal composite core and belongs to the CIGW series. The component has an inductance of 1 µH with a tolerance of ±20%. It operates within a temperature range of -40°C to +125°C. Key electrical specifications include a maximum DC current of 9.3 A, a saturation current of 10.5 A, and a maximum DC resistance of 15.5 mΩ. The physical dimensions are 4.1 mm x 4.1 mm x 2.0 mm (1610 metric package).

Fixed Inductors Feature Summary

• Shielded wirewound construction utilizing a metal composite core for enhanced magnetic containment.
• Low profile design suitable for space-constrained surface-mount PCB layouts.
• High current handling capability with defined saturation and DC current limits.

Fixed Inductors Applications

• Power supply circuits requiring compact inductive filtering
• DC-DC converter stages in portable electronic devices
• General power management modules in consumer electronics

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct tolerance and packaging configuration. Confirm that the requested quantity aligns with standard factory reel sizes or cut tape availability. Cross-reference the part number with the latest revision history to avoid obsolete stock. Ensure storage conditions comply with moisture sensitivity levels if applicable. Always validate component authenticity through authorized distribution channels prior to integration into production lines.

Fixed Inductors Selection Notes

Select this component when a 1 µH inductance value is required with high current capacity in a small footprint. The shielded design minimizes electromagnetic interference coupling to nearby traces. Compare saturation current ratings against peak load requirements to prevent performance degradation. Evaluate thermal dissipation needs based on the specified DC resistance and operating temperature range. Consider mechanical stability during reflow soldering processes given the metal composite core structure.

Fixed Inductors Part Context

This part belongs to the CIGW series of power inductors manufactured by Samsung Electro-Mechanics. The series focuses on providing reliable passive components for modern electronic systems. Samsung Electro-Mechanics specializes in passive components, camera modules, and substrates. The CIGW line emphasizes low profile and high efficiency for portable device applications.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 1 µH inductance, 1610 package size, and similar current ratings. Verify equivalent shielding and core material properties to maintain circuit stability. Consult manufacturer cross-reference lists for approved alternatives with identical electrical characteristics.