BLM21HE802SN1L

Chip Ferrite Bead Overview

The Murata BLM21HE802SN1L is a single-line ferrite chip bead in an 0805 (2012 metric) surface-mount package. It provides 8000 Ohms impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 650 mA and has a maximum DC resistance of 700 mOhms. It operates within a temperature range of -55°C to +125°C, measuring 2.0 mm in length, 1.25 mm in width, and 0.85 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high-impedance attenuation for noise suppression on signal lines
• Designed for surface-mount assembly in compact electronic circuits
• Constructed from ferrite material for effective electromagnetic interference filtering

Chip Ferrite Bead Applications

• EMI suppression filters
• High-speed signal line noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1L against official Murata documentation to confirm packaging configuration and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when high attenuation is required on signal lines carrying moderate DC currents. The 0805 footprint offers a balance between noise performance and board space efficiency. Verify that the 650 mA current rating exceeds the application's peak operating current to prevent saturation.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21 series of ferrite beads, which are widely used for EMI suppression in portable devices and industrial electronics. The HE suffix typically denotes specific material characteristics optimized for higher frequency noise absorption compared to standard variants.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other BLM21 series parts offering similar 8k Ohm impedance at 100 MHz. Verify pin compatibility and thermal ratings before substituting with components from other manufacturers.