BLM41PG181SZ1L

Chip Ferrite Bead Overview

The Murata BLM41PG181SZ1L is an unshielded chip ferrite bead in a 1806 (4516 metric) surface-mount package. It provides 180 Ohms impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 3.5 A and has a maximum DC resistance of 20 mOhms. It operates between -55°C and +125°C, measures 4.5 mm x 1.6 mm x 1.6 mm, weighs 51 mg, and holds AEC-Q200 qualification.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-frequency impedance characteristics.
• Supports high-current applications with a 3.5 A rated current capability.
• Features low DC resistance to minimize power loss in the circuit path.
• Complies with automotive reliability standards via AEC-Q200 qualification.

Chip Ferrite Bead Applications

• Power supply line filtering
• Electromagnetic interference suppression
• Automotive electronic circuits

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes to ensure correct impedance and packaging specifications. Confirm RoHS compliance status as indicated in official documentation. Check for AEC-Q200 certification if automotive application requirements are mandatory. Ensure the selected reel or cut tape quantity matches production needs without relying on distributor stock estimates.

Chip Ferrite Bead Selection Notes

Select this component when a 1806 footprint is required for high-current filtering. The 180 Ohm impedance at 100 MHz suits specific noise frequency ranges. Consider the 3.5 A current rating against peak load requirements. Verify thermal performance within the -55°C to +125°C operating range for the target environment.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM41PG series of chip ferrite beads. It shares the 1806 physical dimensions with other variants in the family but differs in impedance and current ratings. The series is designed for surface-mount assembly and general EMI suppression tasks across industrial and automotive sectors.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLM41PG181SN1L, which shares identical electrical parameters but may differ in packaging format. Other BLM41PG series parts with matching 180 Ohm impedance and 3.5 A rating can be considered if pin compatibility and thermal limits align with design constraints.

Chip Ferrite Bead FAQ

Is the BLM41PG181SZ1L shielded?

No, the component is specified as unshielded.

What is the test frequency for the impedance rating?

The impedance of 180 Ohms is measured at 100 MHz.