MH1608-121T

Overview

The MH1608-121T is a surface-mount ferrite bead from the Bourns MH1608-T series, designed for signal and power line filtering. It features a 0603 (1608 metric) package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 3 A and has a maximum DC resistance of 35 mOhms. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics at specific frequencies.
• Supports high current handling capabilities suitable for power line applications.
• Utilizes a compact surface-mount footprint for efficient board space utilization.

Applications

• Signal line filtering in electronic circuits
• Power line noise suppression
• Electromagnetic compatibility (EMC) mitigation

Procurement Notes

Verify the exact suffix designation against official manufacturer documentation, as variations may exist. Confirm RoHS compliance status directly with the supplier or datasheet. Ensure the specified impedance tolerance and current ratings align with the target circuit requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 0603 footprint is required for high-current filtering applications. The 3 A rating distinguishes it from lower-current variants in the same series. Verify that the 120 Ohm impedance at 100 MHz matches the noise spectrum of the application. Consider the low DC resistance to minimize voltage drop in power paths.

Part Context

This part belongs to the MH1608-T series of ferrite beads manufactured by Bourns Inc. The series offers various impedance values within the standard 0603 package size. It serves as a passive component for suppressing high-frequency noise in both signal and power lines across industrial and consumer electronics.

Replacement Considerations

The Taiyo Yuden BK1608HW121-TV is listed as a discontinued alternative with similar specifications but different current ratings. Direct replacements such as the MH1608-121Y are available from Bourns. Verify pinout and thermal characteristics when substituting components from different manufacturers.

FAQ

What is the maximum DC current rating for the MH1608-121T?

The maximum DC current rating is 3 A.

At what frequency is the impedance value measured?

The impedance of 120 Ohms is measured at a test frequency of 100 MHz.