28R0492-100

Overview

The 28R0492-100 is a solid, free-hanging cable ferrite core manufactured by Laird-Signal Integrity Products. It belongs to the 28B series and utilizes material grade 28 for electromagnetic interference filtering. The component provides an impedance of 150 Ohms at 100 MHz. Its physical dimensions include an inner diameter of 0.327 inches (8.30 mm) width by 0.039 inches (1.00 mm) height, and an outer diameter of 0.492 inches (12.50 mm) width by 0.217 inches (5.50 mm) height. The total length is 0.472 inches (12.00 mm). The part is classified as flat in type and is currently active.

Feature Summary

• Solid construction designed for free-hanging installation on cables
• Utilizes material grade 28 for effective EMI suppression
• Flat profile geometry suitable for specific cable bundling applications

Applications

• Cable ferrite filtering for signal integrity
• Electromagnetic interference suppression on wires
• RF noise reduction in electronic assemblies

Procurement Notes

Verify the exact dimensional tolerances against the official datasheet before integration, particularly regarding the inner diameter clearance for the target cable. Confirm RoHS3 compliance status with the supplier, as environmental declarations can vary by production batch. Ensure the selected distributor sources directly from Laird-Signal Integrity Products to guarantee authenticity and traceability of the material grade.

Selection Notes

Select this component when a flat-profile ferrite core is required for cables fitting within the specified inner diameter range. The 150 Ohm impedance at 100 MHz targets specific high-frequency noise profiles. Compare against the 28R0480-100 if a slightly smaller inner diameter is needed, noting that both share similar material properties but differ in physical aperture size for different cable gauges.

Part Context

This component is part of Laird's Signal Integrity Products portfolio, specifically within the cable ferrite category. It serves as a passive filter to attenuate common-mode noise on cables without requiring soldering or complex mounting hardware. The solid design distinguishes it from split-core alternatives, offering permanent installation once placed over the cable.

Replacement Considerations

The 28R0480-100 is documented as a parameter-equivalent alternative. Both parts share the same 150 Ohm impedance at 100 MHz and material grade 28. The primary difference lies in the inner diameter dimensions; verify that the cable fitment requirements align with the substitute's aperture specifications before substitution.

FAQ

What is the impedance value of the 28R0492-100 at 100 MHz?

The impedance is 150 Ohms at 100 MHz.

Is the 28R0492-100 available in a split-core design?

No, the 28R0492-100 is a solid ferrite core designed for free-hanging installation.