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Product Detailed Parameters
- Description：FERRITE BEAD 68 OHM 0402 1LN
- Series：BK
- Mfr：Taiyo Yuden
- Package：Tape & Reel (TR)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：68 Ohms @ 100 MHz
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：170mOhm
- 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 BK1005HW680-T is a multilayer chip ferrite bead inductor manufactured by Taiyo Yuden. It features a 0402 (1005 metric) surface-mount package with an impedance of 68 ohms at 100 MHz and a maximum DC resistance of 0.17 ohms. The component supports a maximum rated current of 500 mA and operates within a temperature range of -55°C to +125°C. This device utilizes internal silver printed layers to form a closed circuit that acts as a magnetic shield, minimizing heat generation and crosstalk.
Feature Summary
- Multilayer construction for high-frequency noise suppression
- Internal silver printed layer provides magnetic shielding
- Minimizes heat generation and crosstalk through closed circuit design
Applications
- Telecommunications infrastructure
- General electronic circuits requiring EMI filtering
Procurement Notes
Verify the specific suffix designation carefully, as variants such as BK1005HW680-TV may exist with different qualification standards like AEC-Q200. Confirm the exact impedance and current ratings against the official datasheet before integration. Note that product status may vary; some sources indicate this specific part number might be obsolete or end-of-life, so check availability and lifecycle notifications from the manufacturer prior to procurement.
Selection Notes
Select this component when a compact 0402 footprint is required for high-frequency noise attenuation. Ensure the 500 mA current rating meets the circuit's operational requirements. The 68-ohm impedance at 100 MHz makes it suitable for suppressing electromagnetic interference in sensitive signal lines. Verify thermal management needs given the self-heating characteristics under load.
Part Context
This component belongs to the BK series of multilayer chip bead inductors designed for telecommunications infrastructure applications. The series offers various impedance values and package sizes to address diverse EMI suppression needs. The HW variant specifically targets general-purpose filtering with robust performance characteristics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consider checking for updated series replacements from Taiyo Yuden if this part is discontinued.
