MFBW1V3216-122-R

Overview

The Eaton MFBW1V3216-122-R is a multilayer chip ferrite bead designed for electromagnetic interference (EMI) suppression in surface-mount applications. It features a 1206 (3216 metric) package with dimensions of 3.2 mm length, 1.6 mm width, and 1.10 mm maximum height. The component provides an impedance of 1200 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current rating of 1.0 A and has a maximum DC resistance of 0.35 Ohms. The device operates within a temperature range of -40°C to +85°C.

Feature Summary

• Multilayer construction for effective EMI noise attenuation
• Shielded design to contain magnetic fields
• High current handling capability relative to package size

Applications

• Power supply output filtering
• Digital circuit signal line protection
• RF interference suppression in compact electronics

Procurement Notes

Verify the specific impedance value and current rating against the target application requirements before ordering. Confirm that the 1206 package dimensions fit the PCB footprint constraints. Ensure the operating temperature range meets the environmental conditions of the final assembly. Check for RoHS compliance status if required by regulatory standards.

Selection Notes

Select this component when high impedance at 100 MHz is required for noise suppression alongside moderate current carrying capacity. Compare the DCR specifications against power loss limitations in the circuit. Consider the physical size constraints of the 1206 package relative to available board space. Evaluate thermal performance under continuous load conditions.

Part Context

This part belongs to the Eaton MFBW1V series of multilayer ferrite beads. The series offers various impedance values within the same 1206 footprint family. Other variants include lower impedance options like the MFBW1V3216-121-R for different filtering needs.

Replacement Considerations

Direct substitutes may include other 1206 ferrite beads with similar 1200 Ohm impedance and 1A current ratings from different manufacturers. Verify pin compatibility and impedance curves match the original design requirements.