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BLM21BD121SH1D is listed in the Chip Ferrite Bead range at ChipApex. The manufacturer field lists Murata Electronics. Its product description is FERRITE BEAD 120 OHM 0805 1LN. Review the specifications below when checking this part for your BOM.
Chip Ferrite Bead specifications for BLM21BD121SH1D
- Description：FERRITE BEAD 120 OHM 0805 1LN
- Series：EMIFIL®, BLM21
- Mfr：Murata Electronics
- Package：Tape & Reel (TR)
- Filter Type：Differential Mode - Single
- Number of Lines：1
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Current Rating (Max)：-
- DC Resistance (DCR) (Max)：-
- Ratings：-
- Operating Temperature：-
- Package / Case：0805 (2012 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.041" (1.05mm)
- Size / Dimension：0.079" L x 0.049" W (2.00mm x 1.25mm)
- Features：-
Chip Ferrite Bead datasheet and documents for BLM21BD121SH1D
Chip Ferrite Bead Overview
The Murata BLM21BD121SH1D is a single-line ferrite chip bead in the EMIFIL BLM21 series, designed for high-speed signal noise suppression. It features an impedance of 120 Ohms at 100 MHz with a tolerance of 25%. The component operates within a temperature range of -55°C to +125°C and carries AEC-Q200 qualification. Packaged in a 0805 (2012 metric) surface-mount footprint measuring 2.00mm x 1.25mm x 1.45mm maximum height, it supports SMD/SMT termination.
Chip Ferrite Bead Feature Summary
- Provides effective electromagnetic interference filtering for high-speed digital signals
- Automotive-grade reliability certified under AEC-Q200 standards
- Compact surface-mount design suitable for space-constrained PCB layouts
Chip Ferrite Bead Applications
- High-speed data line noise suppression in automotive electronics
- Signal integrity enhancement for USB or HDMI interfaces
- Power supply filtering in compact mobile devices
Chip Ferrite Bead Procurement Notes
Verify the specific suffix 'BD' against official Murata documentation to confirm differential/single-line configuration and impedance characteristics. Ensure the selected package matches the required 0805 footprint dimensions. Cross-reference the AEC-Q200 certification status if automotive compliance is mandatory for the target application environment.
Chip Ferrite Bead Selection Notes
Select this component when a 120 Ohm impedance at 100 MHz is required for single-line noise attenuation. Consider the 0805 package size for board space constraints. Verify that the operating temperature range meets the environmental requirements of the end-use device. Confirm compatibility with standard reflow soldering profiles for surface-mount assembly processes.
Chip Ferrite Bead Part Context
This part belongs to the Murata EMIFIL BLM21 series of ferrite beads. The series offers various impedance values and current ratings in standardized packages. The BLM21BD variant specifically targets high-speed signal lines requiring precise noise suppression without significant signal degradation.
Chip Ferrite Bead FAQ
Is the BLM21BD121SH1D suitable for differential pairs?
No, the datasheet specifies this as a single-line ferrite bead intended for individual signal paths rather than differential pairs.
What is the maximum operating temperature?
The component is rated for a maximum operating temperature of +125°C.
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