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BK20104W121-T is listed in the Chip Ferrite Bead range at ChipApex. The manufacturer field lists Taiyo Yuden. Its product description is FERRITE BEAD 120 OHM 0804 1LN. Review the specifications below when checking this part for your BOM.
Chip Ferrite Bead specifications for BK20104W121-T
- Description：FERRITE BEAD 120 OHM 0804 1LN
- Series：BK
- Mfr：Taiyo Yuden
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：4
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Current Rating (Max)：100mA
- DC Resistance (DCR) (Max)：400mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0804 (2010 Metric), Array, 8 PC Pad
- Mounting Type：Surface Mount
- Height (Max)：0.020" (0.50mm)
- Size / Dimension：0.079" L x 0.039" W (2.00mm x 1.00mm)
- Features：-
Chip Ferrite Bead datasheet and documents for BK20104W121-T
Chip Ferrite Bead Overview
The BK20104W121-T is a multilayer chip bead array inductor manufactured by Taiyo Yuden. It features four independent lines within an 0804 (2010 Metric) surface-mount package. The component provides an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 400 milliohms and a rated current of 100 mA. It operates within a temperature range of -55°C to +125°C.
Chip Ferrite Bead Feature Summary
- Four-line ferrite bead array configuration for multi-signal filtering
- Compact 0804 surface-mount footprint
- High-temperature stability up to 125°C
Chip Ferrite Bead Applications
- Noise suppression in high-speed digital circuits
- EMI filtering on data signal lines
- Power line noise attenuation in compact devices
Chip Ferrite Bead Procurement Notes
Verify the specific suffix 'W' against the official Taiyo Yuden datasheet to confirm material composition and termination specifications. Confirm availability status as distribution listings may vary. Ensure the 0804 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.
Chip Ferrite Bead Selection Notes
Select this component when space constraints require an 0804 package size. Choose based on the 100mA current rating and 120 Ohm impedance requirement at 100 MHz. Verify that the four-line array architecture meets the circuit's filtering topology needs compared to single-line alternatives.
Chip Ferrite Bead Part Context
This part belongs to the Taiyo Yuden BK Array series, designed for multilayer chip bead applications. It serves as a passive electromagnetic interference filter. The product utilizes ceramic and ferrite materials to provide frequency-dependent impedance characteristics suitable for modern electronic assemblies.
Chip Ferrite Bead Replacement Considerations
Direct substitutes include the Murata BLA31AG121SN4D. Verify pin compatibility and impedance curves before substitution.
Chip Ferrite Bead FAQ
What is the physical package size of the BK20104W121-T?
The component uses an 0804 (2010 Metric) surface-mount package.
How many independent filtering lines does this array contain?
It contains four independent ferrite bead lines.
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