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Product Detailed Parameters
- Description：FERRITE BEAD 120 OHM 0402 1LN
- Series：BK
- Mfr：Taiyo Yuden
- Package：Tape & Reel (TR)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：200mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0402 (1005 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.022" (0.55mm)
- Size / Dimension：0.039" L x 0.020" W (1.00mm x 0.50mm)
- Features：-
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Overview
The BK1005HS121-T8 is a multilayer chip bead inductor from the Taiyo Yuden BK series, designed for surface mount applications. It features a 0402 (1005 metric) package with dimensions of 1.00mm length and 0.50mm width. The component provides an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 500mA. Its maximum DC resistance is 200 milliohms. The device operates within a temperature range of -55°C to 125°C and complies with RoHS3 standards.
Feature Summary
- Multilayer construction for compact high-frequency noise suppression
- High-temperature stability suitable for demanding environments
- Surface mount design for automated assembly efficiency
Applications
- Power supply circuits
- Voltage regulation modules
- Battery charger systems
Procurement Notes
Verify the specific suffix 'T8' against official Taiyo Yuden documentation to confirm packaging or material specifications differ from standard variants. Confirm availability status as previous datasheets indicate potential discontinuation of related models. Ensure the source document explicitly validates the T8 designation rather than assuming equivalence to other suffixes.
Selection Notes
Select this component when a 0402 footprint is required for EMI filtering in power lines carrying up to 500mA. The 120 Ohm impedance at 100 MHz targets specific noise frequencies. Verify thermal requirements align with the 125°C maximum operating temperature limit before integration into the design.
Part Context
This part belongs to the BK series of multilayer chip bead inductors manufactured by Taiyo Yuden. These components are engineered for electromagnetic interference suppression in electronic circuits. The BK series utilizes ceramic technology to provide stable performance across varying temperature conditions while maintaining a small physical profile.
Replacement Considerations
Publicly confirmed substitute part numbers for the specific BK1005HS121-T8 variant are not available in the provided reference data. Cross-referencing should be performed using electrical parameters such as 120 Ohm impedance, 500mA rating, and 0402 package size.
