28B0562-0R0

Overview

The Laird-Signal Integrity Products 28B0562-0R0 is a solid cylindrical ferrite core designed for electromagnetic interference (EMI) and radio frequency interference (RFI) suppression on cables and wires. It belongs to the 28B series, utilizing material composition optimized for high-frequency noise attenuation. The component features an inner diameter of 0.250 inches (6.35 mm) and an outer diameter of 0.562 inches (14.27 mm). Its length measures approximately 0.400 inches (10.16 mm), providing a compact form factor for integration into various wiring harnesses without requiring additional mounting hardware.

Feature Summary

• Solid cylindrical construction eliminates the need for split halves or clamping mechanisms during installation.
• Material composition provides effective attenuation of high-frequency electromagnetic and radio frequency interference.
• Free-hanging design allows for direct sliding onto cables and wires without specialized fixtures.

Applications

• Suppression of common-mode noise on power supply cables
• Filtering of data transmission lines in electronic assemblies
• Noise reduction on internal wiring harnesses within enclosures

Procurement Notes

Verify the specific impedance value required for your application, as datasheets may list variants with different ratings (e.g., 31 Ohm vs. higher values). Confirm that the inner diameter of 6.35 mm accommodates the target cable bundle diameter. Ensure the solid core geometry meets the mechanical constraints of the assembly, as it cannot be opened once installed.

Selection Notes

Select this component when a non-split, solid ferrite core is preferred over clamshell designs for permanent installations. The 6.35 mm inner diameter suits medium-gauge cables. Consider the operating temperature range and ensure the material grade aligns with the specific frequency spectrum of the noise being suppressed. Verify compatibility with RoHS regulations if required by the end product specifications.

Part Context

This part is part of the Laird 28B series of cable ferrites, which are widely used for EMI/RFI mitigation. The '0R0' suffix typically denotes a standard impedance variant within the series, distinct from other numbered suffixes that indicate different impedance characteristics. These cores are passive components that rely on magnetic properties to dissipate high-frequency energy as heat.

Replacement Considerations

Direct substitutes include parts with identical dimensions and similar impedance profiles. Fair-Rite products such as the 2643540202 are listed as similar alternatives. When replacing, verify that the substitute maintains the same inner diameter of 6.35 mm and sufficient outer diameter to provide comparable magnetic path length and noise suppression performance.

FAQ

Is the 28B0562-0R0 a split-core or solid-core component?

It is a solid cylindrical ferrite core, meaning it must be slid onto the cable before termination rather than clamped around an existing wire.

What is the inner diameter of the 28B0562-0R0?

The inner diameter is 0.250 inches (6.35 mm).