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Product Detailed Parameters
- Description：FERRITE BEAD 75 OHM AXIAL 1LN
- Series：28
- Mfr：Laird-Signal Integrity Products
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：75 Ohms @ 100 MHz
- Current Rating (Max)：5A
- DC Resistance (DCR) (Max)：10mOhm
- Ratings：-
- Operating Temperature：-
- Package / Case：Axial
- Mounting Type：Through Hole
- Height (Max)：-
- Size / Dimension：0.138" Dia x 0.175" L (3.51mm x 4.45mm)
- Features：-
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Overview
The Laird-Signal Integrity Products 28L0138-10R is an obsolete axial ferrite bead designed for electromagnetic interference (EMI) filtering. It features a single-line configuration with a maximum impedance of 75 Ohms at 100 MHz and a DC resistance of 10 milliohms. The component supports a current rating of 5A and utilizes a through-hole mounting style. Its physical dimensions include a diameter of 0.138 inches (3.51mm). This part belongs to the 28 series and is intended for power line noise suppression applications.
Feature Summary
- Provides EMI filtering for power lines
- Axial leaded construction for through-hole mounting
- High current handling capability
Applications
- Power supply input filtering
- DC power line noise suppression
- Electromagnetic interference reduction in electronic circuits
Procurement Notes
Verify component obsolescence status before integration, as this specific model is discontinued. Confirm availability of direct substitutes such as the 28L0138-10R-10 variant if production continuity is required. Ensure that replacement components match the original electrical specifications and mechanical footprint to maintain circuit integrity without redesign.
Selection Notes
Select this component for applications requiring axial ferrite beads with a 75 Ohm impedance at 100 MHz. Ensure the design accommodates a 5A current rating and 10 milliohm DC resistance. Verify that the through-hole package fits the PCB layout constraints. Consider active alternatives from the same series if long-term supply is necessary.
Part Context
This ferrite bead belongs to the Laird 28 series, which offers various impedance values for EMI suppression. The 28L0138-10R is an older iteration within this family, characterized by its axial form factor. Similar parts in the series include variants with different impedance ratings, all sharing comparable current handling and mounting styles for consistent application performance.
Replacement Considerations
The 28L0138-10R-10 is listed as a direct substitute. Verify that the replacement matches the 75 Ohm impedance and 5A rating. Check for any minor dimensional differences in the axial leads or bead body to ensure compatibility with existing assembly processes.
