CIGW404020KM1R2MLF

Fixed Inductors Overview

The CIGW404020KM1R2MLF is a shielded wirewound power inductor from Samsung Electro-Mechanics, designed for surface-mount applications. It features a metal composite core and offers an inductance of 1.2 µH with a tolerance of ±20%. The component operates within a temperature range of -40°C to +125°C. Key electrical specifications include a maximum DC current of 12.7 A, a saturation current of 12.8 A, and a maximum DC resistance of 6.9 mΩ. The physical dimensions are 4.1 mm x 4.1 mm x 2.0 mm (1616 metric package).

Fixed Inductors Feature Summary

• Shielded wirewound construction utilizing a metal composite core for enhanced magnetic containment.
• Designed for high-current power supply filtering and EMI suppression applications.
• Compact L-type surface-mount form factor suitable for space-constrained PCB layouts.

Fixed Inductors Applications

• Power supply filtering in electronic circuits
• EMI suppression modules
• Signal conditioning systems

Fixed Inductors Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct inductance value and tolerance. Confirm that the specific ordering code matches the required 1.2 µH specification and packaging type. Cross-reference the datasheet revision date to ensure compliance with current environmental and trade regulations. Ensure compatibility with standard SMD reflow soldering profiles specified in the product guidelines.

Fixed Inductors Selection Notes

Select this component when a shielded, high-current inductor is required for power integrity management. The 1.2 µH value and 12.7 A current rating suit moderate-to-high power density designs. Consider the 1616 footprint for board space optimization. Verify thermal performance requirements against the +125°C operating limit. Ensure the low DCR supports efficiency targets in the target power stage topology.

Fixed Inductors Part Context

This component belongs to the CIGW series of power inductors manufactured by Samsung Electro-Mechanics. The series utilizes wirewound technology with metal composite cores to achieve high saturation currents in compact packages. These inductors are part of the company's passive component portfolio, aimed at supporting advanced electronics such as automotive and AI computing systems through reliable signal and power management.

Fixed Inductors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official manufacturer cross-reference lists or authorized distributor databases for verified alternatives. Ensure any replacement matches the 1616 footprint, 1.2 µH inductance, and equivalent current ratings to maintain circuit performance.

Fixed Inductors FAQ

What is the core material used in the CIGW404020KM1R2MLF?

The inductor uses a metal composite core material.

Is the CIGW404020KM1R2MLF shielded?

Yes, the component is a shielded wirewound inductor.