BLM21BD222TZ1D

Chip Ferrite Bead Overview

The Murata BLM21BD222TZ1D is a single-line ferrite bead chip in an 0805 (2012 metric) surface-mount package. It provides an impedance of 2.2 kOhms at 100 MHz with a maximum DC resistance of 600 mOhms and a rated current of 200 mA. The component operates within a temperature range of -55°C to +125°C, measures 2.00 mm x 1.25 mm x 1.45 mm, and complies with RoHS3 standards.

Chip Ferrite Bead Feature Summary

• Functions as a resistor at noise frequencies to reduce resonance risks
• Maintains signal waveform integrity during filtering operations
• Designed for high-impedance EMI suppression in compact footprints

Chip Ferrite Bead Applications

• High-speed signal line filtering
• EMI suppression filters
• Audio line noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'TZ1D' against official Murata documentation to confirm packaging details and exact electrical tolerances. Ensure the selected variant matches the required impedance curve and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0805 footprint is required for high-impedance noise suppression on low-current signal lines. The 200 mA rating suits sensitive data paths rather than power distribution networks. Verify that the 600 mOhm DC resistance does not introduce excessive voltage drop in the specific application circuit.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series, which utilizes specialized ferrite materials to provide stable impedance characteristics across wide frequency bands. The series is engineered to minimize signal distortion while effectively attenuating electromagnetic interference in dense electronic assemblies.

Chip Ferrite Bead Replacement Considerations

Consult official substitution guides for equivalent impedance values. Direct replacements must match the 0805 footprint, 2.2 kOhm @ 100 MHz specification, and 200 mA current rating to ensure circuit compatibility.