MLP0603-121

Overview

The Ferroxcube MLP0603-121 is a multilayer EMI suppression ferrite bead in a 0402 (1005 metric) surface-mount package. It provides an impedance of 120 ohms with a tolerance of ±25%. The component supports a maximum current rating of 1.8A and features a low DC resistance of 70 milliohms, making it suitable for moderate-power signal and power line filtering applications.

Feature Summary

• Multilayer construction for compact EMI suppression
• High current handling capability up to 1.8A
• Low DC resistance for minimal signal loss

Applications

• Moderate-power signal line filtering
• Power line noise suppression
• EMI suppression in compact electronic devices

Procurement Notes

Verify the package size carefully as the model number MLP0603 may imply 0603 dimensions but official datasheets specify a 0402 footprint. Confirm the impedance value of 120 ohms and the 1.8A current rating against your specific circuit requirements. Ensure compatibility with standard reflow soldering profiles for 0402 components.

Selection Notes

Select this component when space is constrained to a 0402 footprint but higher current capacity than standard small ferrites is required. The 120-ohm impedance offers effective attenuation for specific frequency ranges while maintaining low insertion loss due to its 70-milliohm DC resistance. Consider thermal management if operating near the 1.8A limit.

Part Context

This part belongs to Ferroxcube's MLP series of multilayer suppressors designed for high-density PCB layouts. Unlike single-layer beads, multilayer technology allows for smaller footprints with comparable or superior performance characteristics. The MLP series is engineered for reliable EMI/RFI noise reduction in consumer and industrial electronics.

Replacement Considerations

Check for direct substitutes from other manufacturers offering 0402 ferrite beads with 120 ohms impedance and at least 1.8A current ratings. Verify that alternative parts maintain similar DC resistance values to ensure equivalent circuit performance without significant voltage drop.