BLM21BD222TN1D

Chip Ferrite Bead Overview

The Murata BLM21BD222TN1D is a single-line ferrite bead designed for signal line noise suppression in the 0805 (2012 metric) surface-mount package. It exhibits an impedance of 2.2 kOhms at 100 MHz with a maximum DC resistance of 600 milliohms and a rated current of 200 mA. The component operates within a temperature range of -55°C to 125°C, featuring dimensions of 2.00 mm length, 1.25 mm width, and a maximum height of 1.45 mm.

Chip Ferrite Bead Feature Summary

• Functions as a resistor at noise frequencies to reduce resonance possibilities
• Maintains undistorted signal waveforms during operation
• Provides effective electromagnetic interference filtering for high-speed signals

Chip Ferrite Bead Applications

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

Chip Ferrite Bead Procurement Notes

Verify the specific suffix TN1D against official Murata documentation to confirm packaging configuration and tape/reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 2.2 kOhm impedance at 100 MHz is required for a single signal line within a compact 0805 footprint. Consider the 200 mA current rating and 600 milliohm DC resistance limits to ensure compatibility with the power supply or signal path requirements without excessive voltage drop.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of chip ferrite beads. The series is engineered to provide stable noise suppression characteristics while minimizing signal distortion. The BLM21BD variant specifically targets applications requiring reliable performance across a wide industrial temperature range.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified alternatives. Cross-reference impedance values, current ratings, and physical dimensions to ensure functional equivalence without compromising circuit integrity or board space constraints.