BLM21PG220SZ1D

Chip Ferrite Bead Overview

The Murata BLM21PG220SZ1D is a single-line ferrite bead chip designed for power line noise suppression. It operates within the EMIFIL BLM21 series and features an impedance of 22 Ohms at 100 MHz. The component supports a maximum rated current of 6A with a maximum DC resistance of 9 milliohms. It utilizes a 0805 (2012 metric) surface-mount package measuring 2.00mm x 1.25mm x 1.05mm. The device is qualified to AEC-Q200 standards and functions reliably across a temperature range of -55°C to 125°C.

Chip Ferrite Bead Feature Summary

• High current handling capability suitable for power supply filtering applications
• Automotive-grade reliability certified under AEC-Q200 standards
• Low DC resistance minimizes voltage drop in high-current circuits

Chip Ferrite Bead Applications

• Power line noise suppression in automotive electronic systems
• EMI filtering for vehicle power distribution networks
• Noise reduction in high-current DC power rails

Chip Ferrite Bead Procurement Notes

Verify the suffix 'SZ1D' against official Murata documentation, as standard listings often use 'SN1D'. Confirm that the specific suffix corresponds to the required packaging format and tape-and-reel specifications. Ensure the part meets the intended application's environmental and current requirements before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits requiring robust power line filtering with high current capacity. The 0805 footprint offers a balance between thermal performance and board space efficiency. Consider the low DC resistance to maintain system efficiency in high-current paths while ensuring adequate noise attenuation at target frequencies.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM21 series, which specializes in ferrite beads for power lines. The series is engineered for automotive and industrial applications requiring reliable EMI suppression. The BLM21PG variant specifically targets high-current scenarios, distinguishing it from signal line or lower-current general-purpose ferrite beads.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs by matching impedance characteristics, current ratings, and physical dimensions before considering alternative components.