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Product Detailed Parameters
- Description：FERRITE BEAD 120 OHM 0402 1LN
- Series：BK
- Mfr：Taiyo Yuden
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Current Rating (Max)：450mA
- DC Resistance (DCR) (Max)：240mOhm
- 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 BK1005HW121-T is a multilayer ferrite chip bead inductor manufactured by Taiyo Yuden, designed for high-current applications. It features a 0402 (1005 metric) surface-mount package with dimensions of 1.00mm x 0.50mm and a maximum height of 0.55mm. The component provides an impedance of 120 Ohms at 100 MHz with a tolerance of 25%. It supports a maximum DC current of 450 mA and has a maximum DC resistance of 240 mOhms. The device operates within a temperature range of -55°C to +125°C and complies with RoHS3 standards.
Feature Summary
- Multilayer construction optimized for automotive-grade reliability
- High current handling capability suitable for power line filtering
- Compact 0402 footprint for dense PCB layouts
Applications
- Automotive electronic circuit noise suppression
- Power supply output filtering
- EMC interference mitigation in high-current signal lines
Procurement Notes
Verify the specific suffix designation carefully during procurement. The 'HW' suffix indicates automotive-grade qualification, which differs from standard commercial grades like 'HS'. Confirm that the required current rating and impedance specifications match the target application design before ordering, as variations exist within the BK series.
Selection Notes
Select this component when automotive reliability and higher current capacity are required compared to standard commercial ferrite beads. Ensure the PCB layout accommodates the 0402 package size and that the thermal environment remains within the specified -55°C to +125°C operating range for consistent performance.
Part Context
This part belongs to the BK series of multilayer chip bead inductors from Taiyo Yuden. The HW variant specifically targets automotive electronics, offering enhanced durability and stability under harsh conditions compared to non-automotive counterparts. It serves as a passive filter component to suppress electromagnetic interference in sensitive circuits.
Replacement Considerations
Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation. Verify compatibility with alternative ferrite beads based on impedance curves, current ratings, and package dimensions if substitution is necessary.
