MG2029-121Y

Overview

The MG2029-121Y is a high impedance chip ferrite bead from the Bourns MG series, designed for EMI suppression in power and signal lines. It features an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 300 mA and has a maximum DC resistance of 250 mOhms. It utilizes SMD/SMT termination and is housed in a compact 0805 (2012 metric) package measuring 2 mm in length, 1.2 mm in width, and 0.9 mm in height. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective electromagnetic interference suppression for sensitive circuits
• Designed for surface mount assembly on printed circuit boards
• Capable of handling continuous direct current loads

Applications

• Power line filtering
• Signal line noise attenuation
• EMI suppression in electronic assemblies

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct impedance and current ratings. Confirm that the required packaging format aligns with production needs. Cross-reference the datasheet specifications for thermal performance and electrical limits before finalizing procurement orders to avoid compatibility issues.

Selection Notes

Select this component when a 120 Ohm impedance at 100 MHz is required for noise reduction. Ensure the design accommodates the 300 mA current limit and 250 mOhm resistance. The 0805 footprint must match the PCB layout constraints. Verify that the operating temperature range meets the environmental requirements of the target application.

Part Context

This component belongs to the Bourns MG series of ferrite beads, which are engineered for high impedance characteristics. The series offers various impedance values and current ratings to suit different filtering requirements. The MG2029-121Y specifically targets applications needing moderate current handling with significant high-frequency noise attenuation in a standard surface mount package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.