BLM21AH601SN1D

Chip Ferrite Bead Overview

The Murata BLM21AH601SN1D is a single ferrite chip bead in the BLM21H series, designed for surface-mount applications. It features an impedance of 600 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 700 mA and has a maximum DC resistance of 200 mOhms. It operates within a temperature range of -55°C to +125°C. The physical dimensions are 2 mm in length, 1.25 mm in width, and 0.85 mm in height, corresponding to the 0805 (2012 metric) package.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for digital signal lines
• Complies with AEC-Q200 automotive reliability standards
• Offers low DC resistance to minimize power loss in power supply circuits

Chip Ferrite Bead Applications

• Automotive electronic systems requiring AEC-Q200 compliance
• Digital interface noise filtering
• Power supply line EMI suppression

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'BH' versus 'SN' when sourcing replacements, as these indicate different internal material compositions or performance characteristics despite identical nominal impedance. Confirm RoHS compliance status directly from the manufacturer's datasheet. Ensure the selected variant matches the required current rating and package dimensions for your PCB layout.

Chip Ferrite Bead Selection Notes

Select this component for designs requiring robust EMI suppression in automotive environments due to its AEC-Q200 qualification. The 700 mA current rating makes it suitable for moderate power lines where lower DC resistance is critical. Compare against the BLM21AG series if higher current capacity is needed, or the BLM21BD series if lower current handling is acceptable.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21H series of ferrite beads, which are optimized for automotive applications. The series provides various impedance values in standard packages like 0805. The BLM21AH601SN1D specifically targets high-frequency noise attenuation while maintaining stability under automotive thermal conditions.

Chip Ferrite Bead Replacement Considerations

BLM21AG601SN1D offers similar electrical characteristics but may differ in specific automotive qualification details.