MH2029-100Y

Overview

The Bourns MH2029-100Y is a surface-mount ferrite chip bead designed for high-current applications. It features an impedance of 10 Ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current rating of 6 A and has a maximum DC resistance of 30 mOhms. It operates within a temperature range of -55°C to +125°C. The physical dimensions are 2 mm in length, 1.2 mm in width, and 0.9 mm in height, conforming to the 0805 (2012 metric) package standard.

Feature Summary

• High current handling capability suitable for power line filtering
• Compact surface-mount footprint for space-constrained designs
• Wide operating temperature range for robust environmental performance

Applications

• Power supply output filtering
• DC-DC converter noise suppression
• High-current signal line protection

Procurement Notes

Verify the specific datasheet version for the MH2029-100Y to confirm RoHS compliance status and exact packaging quantities. Ensure that the 6 A current rating aligns with your thermal management requirements, as self-heating may affect performance. Confirm the 0805 package dimensions match your PCB land pattern specifications before finalizing procurement orders.

Selection Notes

Select this component when high current capacity is required alongside moderate impedance values. The 10 Ohm impedance at 100 MHz provides effective attenuation for common EMI frequencies without excessive voltage drop. Consider the low DC resistance to minimize power loss in high-current paths. Evaluate thermal dissipation capabilities based on ambient conditions and current load profiles.

Part Context

This part belongs to the Bourns MH series of ferrite chip beads. The series focuses on providing reliable electromagnetic interference suppression in compact surface-mount formats. The MH2029-100Y specifically targets applications requiring higher current handling than standard small-signal ferrites, bridging the gap between general-purpose beads and larger through-hole components.

Replacement Considerations

Check for direct substitutes from other manufacturers offering identical 0805 dimensions, 10 Ohm impedance, and 6 A current ratings. Verify that alternative parts meet the same -55°C to +125°C operating temperature range and have comparable DC resistance values to ensure circuit compatibility.