11R474C

Overview

The Murata Power Solutions 11R474C is a leaded power inductor from the 1100R series, designed for PCB mounting. It features a wirewound construction with an unshielded core and radial termination style. The component provides an inductance of 47 µH with a tolerance of ±10%. It supports a maximum DC current of 140 mA and exhibits a maximum DC resistance of 6.4 ohms. The unit operates within a temperature range of -40°C to +85°C and is tested at 1 kHz.

Feature Summary

• Radial leaded construction suitable for through-hole PCB mounting
• Wirewound unshielded design for high-current applications
• Compact physical footprint optimized for space-constrained layouts

Applications

• Power supply filtering circuits
• DC-DC converter input/output stages
• General-purpose power electronics

Procurement Notes

Verify the specific current rating variant during procurement, as datasheets may list conflicting values such as 140 mA or 500 mA for similar part numbers. Confirm RoHS compliance status directly with the manufacturer. Check for discontinuation notices, as availability may be limited for older series components. Ensure the ordering suffix matches the required packaging format.

Selection Notes

Select this component when a compact, leaded inductor is required for moderate current levels up to 140 mA. The 47 µH value suits general filtering needs where low cost and standard mounting are priorities. Consider thermal derating if operating near the upper temperature limit. Compare against shielded alternatives if electromagnetic interference mitigation is critical for the application.

Part Context

This part belongs to the 1100R series of power inductors manufactured by Murata Power Solutions. The series offers various inductance values tailored for different current requirements. The 11R474C specifically targets applications requiring a balance between size and performance in leaded configurations.

Replacement Considerations

Direct substitutes include other 47 µH leaded inductors from Murata's 1100R series with compatible current ratings. Cross-reference with competitors offering similar radial packages and DC resistance values. Verify that replacement parts meet the same temperature and tolerance specifications.