MH3261-190Y

Overview

The Bourns MH3261-190Y is a high-current chip ferrite bead designed for EMI filtering in compact surface-mount applications. It features a 1206 (3216 metric) package with dimensions of 3.2 mm length, 1.6 mm width, and 1.1 mm height. The component provides an impedance of 19 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 3 A and maintains a maximum DC resistance of 40 mOhms. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Compact 1206 footprint suitable for dense circuit layouts
• High rated current capability for power line filtering
• Low DC resistance to minimize insertion losses

Applications

• EMI filtering in compact SMD form factors
• Power delivery networks requiring high current handling
• Signal integrity protection on data lines

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's latest documentation to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status through official datasheets or certificates of conformity. Check for end-of-life notices or obsolescence warnings prior to finalizing procurement plans.

Selection Notes

Select this component when space constraints require a 1206 footprint but high current capacity is necessary. Ensure the target application frequency aligns with the 100 MHz impedance specification. Verify that the 3 A current rating exceeds the peak operational currents of the protected circuit to prevent saturation.

Part Context

This part belongs to the Bourns MH3261-T series of high-current chip ferrite beads. The series is characterized by low profile designs and low DC resistance, offering impedance values ranging widely across the family. These components are engineered specifically for effective EMI suppression in modern electronic devices where board real estate is limited.

Replacement Considerations

Consult the official Bourns discontinuation notice for confirmed substitute part numbers within the MH series. Verify that any replacement maintains the 1206 footprint and meets the 19 Ohm impedance requirement at 100 MHz. Ensure thermal and current ratings match or exceed the original specifications.