BLM15PX221SN1D

Chip Ferrite Bead Overview

The Murata BLM15PX221SN1D is a surface-mount chip ferrite bead from the BLM15 series, housed in a 0402 (1005 metric) package. It provides an impedance of 220 Ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current rating of 1.4A and features a maximum DC resistance of 100 mΩ. It operates within a temperature range of -55°C to +125°C and measures 1.0 mm in length, 0.5 mm in width, and 0.5 mm in height.

Chip Ferrite Bead Feature Summary

• Monolithic ferrite construction for effective high-frequency noise suppression
• Compact 0402 footprint suitable for dense surface-mount layouts
• High current handling capability of 1.4A for power line applications

Chip Ferrite Bead Applications

• EMI suppression filters on high-speed signal lines
• Noise filtering for general-purpose electronic circuits
• Power supply line decoupling in portable devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm packaging type and performance characteristics. Ensure the selected variant matches the required impedance tolerance and current rating for the target application. Cross-reference the full part number with manufacturer datasheets to validate compliance with RoHS and REACH standards before procurement.

Chip Ferrite Bead Selection Notes

Select this component when a compact 0402 ferrite bead is required for noise suppression in circuits carrying up to 1.4A. The 220 Ohm impedance at 100 MHz targets common EMI frequencies. Consider the low DC resistance of 100 mΩ to minimize voltage drop and power loss in power delivery networks compared to higher-resistance alternatives.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM15 series of chip ferrite beads, designed for general-purpose EMI suppression. The series offers various impedance values and current ratings within standard industrial packages. The BLM15PX variant specifically addresses applications requiring higher current capacity within the small 0402 form factor.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other Murata BLM15 series parts with identical 0402 dimensions and similar electrical parameters, such as BLM15PG221SN1D or BLM15AG221SN1D, provided their current ratings meet the 1.4A requirement.