28L0138-70R-10

Overview

The Laird-Signal Integrity Products 28L0138-70R-10 is a single-line axial ferrite bead designed for EMI filtering applications. It exhibits an impedance of 220 Ohms at 100 MHz and supports a maximum current rating of 5A. The component features a low DC resistance of 10 milliohms, ensuring minimal signal loss in power lines. It utilizes a through-hole mounting style with an axial package configuration. The device operates within a temperature range of -40°C to 125°C and complies with RoHS3 standards.

Feature Summary

• Provides high impedance attenuation for electromagnetic interference suppression in the 100 MHz frequency range.
• Capable of handling high continuous current loads up to 5A with minimal resistive voltage drop.
• Constructed with an axial leaded format suitable for robust through-hole PCB integration.

Applications

• Power supply input/output filtering
• DC-DC converter noise suppression
• High-current digital circuit EMI mitigation

Procurement Notes

Verify the specific suffix '10' against official datasheets to confirm impedance tolerance and packaging details. Confirm availability status as distribution data may vary. Ensure the axial lead spacing matches the target PCB footprint before ordering. Cross-reference the manufacturer part number directly with Laird-Signal Integrity Products documentation to avoid substitution errors.

Selection Notes

Select this component when high current capacity is required alongside significant high-frequency noise reduction. The axial form factor is preferred over surface mount options when mechanical stability or specific lead lengths are necessary. Evaluate the 220 Ohm impedance value against the target noise spectrum to ensure effective attenuation without excessive DC voltage drop.

Part Context

This component belongs to the 28 series of ferrite beads from Laird-Signal Integrity Products. The series offers various impedance values tailored for different filtering requirements while maintaining consistent physical dimensions and current ratings. These parts are commonly used in industrial and consumer electronics for power line conditioning.

Replacement Considerations

Direct substitutes include 28L0138-50R-10 (153 Ohms) and 28L0138-40R-10 (135 Ohms). Verify that the alternative impedance values meet the specific noise suppression requirements of the design.