MLS0402-4S4-241

Overview

The MLS0402-4S4-241 is a multilayer EMI suppressor from Ferroxcube, designed for high-frequency noise attenuation in compact electronic assemblies. Housed in a standard 0402 (1005 Metric) surface-mount package, this component integrates ferrite material within a chip bead structure to provide effective signal integrity protection. It features a maximum DC resistance of 500mOhm and supports a current rating of 200mA, ensuring minimal insertion loss in power or data lines. The device operates reliably across a temperature range of -40°C to 125°C, making it suitable for demanding industrial and consumer applications where space constraints and electromagnetic compatibility are critical design factors.

Feature Summary

• Multilayer construction for efficient EMI suppression in small form factors
• Ferrite-based chip bead design for targeted high-frequency noise reduction
• Robust thermal stability supporting wide operating temperature ranges

Applications

• Motherboard noise filtering
• Notebook computer peripheral protection
• DVD-Rom drive circuitry suppression

Procurement Notes

Verify the specific impedance tolerance and frequency characteristics against the official Ferroxcube datasheet before integration. Confirm that the 0402 footprint matches the target PCB layout dimensions precisely. Ensure the 200mA current rating aligns with the operational load requirements of the specific circuit branch to prevent saturation or excessive heating during continuous use.

Selection Notes

Choose this component when space-constrained designs require effective high-frequency noise attenuation without adding significant series resistance. The 0402 package size offers a balance between suppression performance and board real estate efficiency. Consider the 500mOhm DCR limit to ensure voltage drop remains within acceptable limits for sensitive downstream components while maintaining adequate current handling capabilities.

Part Context

This part belongs to the MLS series of multilayer suppressors manufactured by Ferroxcube, a recognized supplier of magnetic materials and EMI solutions. The series is engineered to address electromagnetic interference challenges in modern electronics. The specific model utilizes advanced ceramic processing techniques to achieve consistent magnetic properties across production batches, supporting reliable performance in mass-produced consumer and industrial devices.

Replacement Considerations

Public confirmed substitute part numbers: None identified.