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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)：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-T is a single-line multilayer chip ferrite bead manufactured by Taiyo Yuden. 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 500mA and has a maximum DC resistance of 200 milliohms. The operating temperature range spans from -55°C to 125°C.
Feature Summary
- Multilayer construction for compact high-frequency noise suppression
- High-temperature stability suitable for demanding environments
- Single-line configuration for power line filtering
Applications
- Power supply noise filtering in portable devices
- EMI suppression in automotive electronic systems
- Signal integrity management in industrial control equipment
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 1) requirements during storage and handling. Validate that the 0402 footprint matches the target PCB design constraints before integration into production workflows.
Selection Notes
Select this component when space-constrained designs require effective high-frequency attenuation in power lines. Ensure the 500mA current rating meets the circuit's operational demands without excessive thermal rise. Consider the 200 milliohm DCR impact on voltage drop for low-voltage applications requiring precise power delivery.
Part Context
This part belongs to the BK series of multilayer chip beads designed for electromagnetic interference suppression. It utilizes ceramic ferrite materials to provide frequency-dependent impedance characteristics. The 0402 form factor allows for dense PCB layouts common in modern consumer electronics and automotive modules.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components based on impedance curves, current ratings, and physical dimensions if sourcing replacements.
