28L0138-40R-10

Overview

The 28L0138-40R-10 is a single-line ferrite bead manufactured by Laird-Signal Integrity Products, designed for through-hole mounting. It exhibits an impedance of 135 Ohms at 100 MHz and supports a maximum current rating of 5A. The component features a low DC resistance (DCR) of 10 milliohms maximum. Its physical dimensions include a diameter of 0.138 inches (3.51mm) and a length of 2.323 inches (59.00mm), with a maximum height of 0.350 inches (8.90mm). It operates within a temperature range of -40°C to 125°C.

Feature Summary

• Provides differential mode EMI filtering capabilities for signal lines.
• Features axial leads suitable for standard through-hole PCB assembly processes.
• Constructed with 100% tin-plated terminals to ensure reliable soldering connections.

Applications

• Differential mode EMI filtering in electronic circuits
• Through-hole mounted signal line protection
• General purpose noise suppression in power and signal paths

Procurement Notes

Verify the specific impedance value of 135 Ohms at 100 MHz against design requirements before procurement. Confirm that the 5A current rating and 10 milliohm DCR meet the circuit's electrical constraints. Ensure the through-hole axial package dimensions fit the target PCB layout. Check RoHS3 compliance status if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when axial through-hole mounting is required for ferrite beads. The 5A current handling capacity makes it suitable for higher current applications compared to smaller surface-mount alternatives. The 135 Ohm impedance provides effective attenuation at 100 MHz. Consider the physical length of 2.323 inches for adequate spacing on the printed circuit board during layout planning.

Part Context

This part belongs to the 28L0138 series of ferrite beads from Laird-Signal Integrity Products. The series offers various impedance values and current ratings for different filtering needs. The 28L0138-40R-10 specifically targets applications requiring robust through-hole solutions with moderate impedance characteristics for common mode or differential mode noise reduction.

Replacement Considerations

Direct substitute: 28J0138-11R-10. Note that the substitute has a different impedance specification (143 Ohms @ 100 MHz) and may require circuit re-evaluation. Verify compatibility with existing PCB footprints and thermal management strategies before swapping components.

FAQ

What is the impedance of the 28L0138-40R-10 at 100 MHz?

The impedance is 135 Ohms at 100 MHz.

Is the 28L0138-40R-10 RoHS compliant?

Yes, the component is RoHS3 compliant.