MFBM1V3216-121-R

Overview

The Eaton MFBM1V3216-121-R is a multilayer chip ferrite bead designed for electromagnetic interference suppression in surface-mount applications. It features a 1206 (3216 metric) package with dimensions of 3.2 mm length, 1.6 mm width, and 0.9 mm height. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz. It supports a maximum DC current of 4 A with a maximum DC resistance of 35 mOhms. The device operates within a temperature range of -40°C to +85°C and has a tolerance of ±25%.

Feature Summary

• Multilayer construction for effective high-frequency noise attenuation
• Shielded design to minimize external magnetic field interference
• High current handling capability suitable for power line filtering

Applications

• Power supply output filtering
• DC-DC converter noise suppression
• General-purpose EMI suppression in electronic circuits

Procurement Notes

Verify the specific part number against official Eaton Electronics documentation to ensure accuracy. Confirm that the required impedance, current rating, and package dimensions match the design specifications. Check for RoHS compliance status if required by regulatory standards. Ensure storage conditions adhere to moisture sensitivity level guidelines before soldering.

Selection Notes

Select this component when a 1206 footprint is available and a 120 Ohm impedance at 100 MHz is required. The 4 A current rating makes it suitable for higher power applications compared to lower-current variants. Consider the 35 mOhm DCR for voltage drop calculations in the circuit design. Verify thermal performance within the specified operating temperature range.

Part Context

This component belongs to the MFBM1V series of multilayer chip ferrite beads from Eaton Electronics. The series offers various impedance values and current ratings within the standard 1206 package size. These components are engineered for compact designs requiring reliable EMI suppression in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other Eaton MFBM1V3216 variants with identical impedance and current ratings. Cross-brand replacements must match the 1206 package, 120 Ohm impedance, and 4 A current capacity. Verify pin compatibility and thermal characteristics before substitution.