BLM31KN601SH1L

Chip Ferrite Bead Overview

The Murata BLM31KN601SH1L is a single-line ferrite bead chip designed for power line noise suppression. It features a 600 Ohm impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 2.9 A and has a maximum DC resistance of 38 milliohms. Housed in a 1206 (3216 metric) surface-mount package, it operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference attenuation on power lines through high-impedance characteristics at target frequencies.
• Engineered for automotive reliability with compliance to the AEC-Q200 qualification standard.
• Utilizes a compact 1206 surface-mount footprint to facilitate automated assembly and space-constrained circuit board layouts.

Chip Ferrite Bead Applications

• Automotive electronic systems requiring EMI suppression
• Power supply input filtering circuits
• High-current signal line noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1L against official Murata documentation to confirm tape-and-reel packaging specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits that require significant noise attenuation on power rails carrying up to 2.9 Amperes. The 1206 package size offers a balance between current handling capability and board space efficiency. Consider the low DC resistance to minimize voltage drop and power loss in high-efficiency power management designs.

Chip Ferrite Bead Part Context

This component belongs to the BLM31 series of multi-layer ferrite beads manufactured by Murata Electronics. The series is widely utilized in automotive and industrial applications due to its robust construction and standardized sizing. The BLM31KN601SH1L specifically addresses high-current power line filtering needs within the broader portfolio of passive EMI suppression components.

Chip Ferrite Bead Replacement Considerations

BLM31KN601SN1L is documented as a parameter-equivalent substitute from Murata. Other potential equivalents include AFBC-SH1206P-601T from Abracon and HFZ 3216PF-601T29 from TAI-TECH, provided their electrical characteristics align with the design requirements.