BLM15BX471SZ1D

Chip Ferrite Bead Overview

The Murata BLM15BX471SZ1D is a single-line ferrite chip bead in the BLM15_SN series, housed in a 0402 (1005 metric) surface-mount package. It provides an impedance of 470 ohms with a 25% tolerance at a test frequency of 100 MHz. The component supports a maximum DC current of 350 mA and maintains a maximum DC resistance of 410 milliohms. It operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for signal lines in compact designs
• Engineered for stability under continuous direct current loads up to 350 mA
• Constructed for reliable operation across extended industrial temperature ranges

Chip Ferrite Bead Applications

• Noise filtering on digital signal lines
• EMI suppression in portable electronic devices
• Signal integrity management in compact circuit boards

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against the target design requirements to ensure compatibility with the intended current handling and impedance characteristics. Confirm that the 0402 footprint aligns with the PCB layout constraints. Cross-reference the datasheet for precise thermal derating curves if operating near the maximum temperature limits.

Chip Ferrite Bead Selection Notes

Select this component when space is limited to a 0402 footprint but higher current capacity than standard variants is required. The 470-ohm impedance is suitable for attenuating high-frequency noise without significant signal attenuation at lower frequencies. Ensure the application does not exceed the 350 mA DC rating to prevent saturation or excessive heating.

Chip Ferrite Bead Part Context

This part belongs to the BLM15_SN series, which is optimized for general-purpose noise suppression in consumer and industrial electronics. The series offers various impedance values and current ratings within the same 0402 form factor, allowing designers to balance size, cost, and performance requirements effectively.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other BLM15 series parts with identical 0402 dimensions and similar electrical parameters. Verify that any replacement maintains the 470-ohm impedance at 100 MHz and meets or exceeds the 350 mA DC current rating.