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Product Detailed Parameters
- Description：FERRITE BEAD 75 OHM AXIAL 1LN
- Series：28L0138
- 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：-40°C ~ 125°C
- Package / Case：Axial
- Mounting Type：Through Hole
- Height (Max)：0.175" (4.45mm)
- Size / Dimension：0.138" Dia x 2.323" L (3.51mm x 59.00mm)
- Features：-
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Overview
The 28L0138-10R-10 is a single-line ferrite bead from the Laird 28 series, designed for through-hole axial mounting. It provides an impedance of 75 Ohms at 100 MHz with a maximum DC resistance of 10 milliohms and a current rating of 5 Amperes. The component features tin-plated terminals and operates within a temperature range of -40°C to 125°C. Its physical dimensions include a diameter of 0.138 inches (3.51mm) and a length of approximately 2.323 inches (59.00mm).
Feature Summary
- Provides electromagnetic interference filtering via high impedance characteristics at 100 MHz.
- Features tin-plated axial leads suitable for standard through-hole PCB assembly processes.
Applications
- Differential mode EMI filtering in electronic circuits.
- Signal integrity enhancement on power or data lines.
Procurement Notes
Verify component status as this part may be obsolete or discontinued. Confirm availability of direct substitutes such as the 28L0138-50R-10 if sourcing new inventory is required. Ensure that replacement components match the original electrical specifications and mechanical footprint requirements for seamless integration into existing designs.
Selection Notes
Select this component when specific attenuation at 100 MHz is required for noise suppression. Consider the 5A current rating and low DC resistance for power line applications. Verify that the axial package dimensions fit the target board layout constraints before finalizing the design.
Part Context
This ferrite bead belongs to the Laird 28 series, which offers various impedance values for EMI suppression. The 28L0138-10R-10 specifically targets applications needing moderate attenuation. Similar parts in the series include the 28L0138-40R-10 and 28L0138-50R-10, offering different impedance levels while maintaining similar form factors.
Replacement Considerations
The 28L0138-50R-10 is listed as a direct substitute. Verify that the higher impedance value of the replacement does not adversely affect the circuit's signal integrity or power delivery requirements compared to the original 75 Ohm specification.
FAQ
What is the impedance of the 28L0138-10R-10 at 100 MHz?
The impedance is 75 Ohms at 100 MHz.
Is this component suitable for surface mount applications?
No, it is designed for through-hole axial mounting with leaded terminals.
