MU3261-300Y

Overview

The Bourns MU3261-300Y is a high impedance ferrite chip bead in the 1206 (3216 metric) surface mount package. It provides an impedance of 30 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 500 mA and features a maximum DC resistance of 200 mOhms. It operates within a temperature range of -55°C to +125°C, with physical dimensions of 3.2 mm length, 1.6 mm width, and 1.1 mm height.

Feature Summary

• Designed for high-frequency noise suppression in power and signal lines
• Surface mount construction for automated assembly integration
• High impedance characteristic effective at 100 MHz

Applications

• Power line filtering
• Signal line noise suppression
• High-frequency circuit protection

Procurement Notes

Verify the specific impedance value against project requirements, as the MU3261 series includes variants with different ratings such as 120 Ohms or 300 Ohms. Confirm that the 500 mA current rating aligns with the application's operational limits. Ensure the 1206 footprint matches the PCB layout constraints. Check RoHS compliance status if required by regulatory standards.

Selection Notes

Select this component when a low impedance value of 30 Ohms is required for broadband noise attenuation. The 1206 package offers a balance between current handling and board space. Consider the 200 mOhm DC resistance impact on voltage drop in sensitive circuits. Evaluate thermal performance at the maximum operating temperature of +125°C.

Part Context

This part belongs to the Bourns MU Series of ferrite chip beads. The series utilizes manganese-zinc ferrite materials optimized for high permeability and saturation characteristics. These components are engineered to suppress electromagnetic interference in compact electronic designs without introducing significant signal distortion.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided documentation.