28B0390-000

Overview

The 28B0390-000 is a solid free-hanging ferrite core manufactured by Laird-Signal Integrity Products. It provides an impedance of 128 Ohms at 100 MHz. The component features an inner diameter of 0.250 inches (6.35 mm), an outer diameter of 0.390 inches (9.91 mm), and a length of 0.591 inches (15.00 mm). Designed for cable filtering, it utilizes Material 28 and supports RoHS3 compliance.

Feature Summary

• Solid construction designed for free-hanging installation on cables
• Material 28 composition optimized for high-frequency noise suppression
• Circular geometry accommodates standard wire and cable diameters

Applications

• Cable EMI filtering
• Signal integrity enhancement
• RFI suppression on wiring harnesses

Procurement Notes

Verify the specific impedance value required for your application against the datasheet specifications. Confirm that the inner diameter matches the cable size to ensure proper fit. Check for RoHS3 compliance requirements if applicable to your manufacturing standards. Ensure the material type aligns with your frequency range needs.

Selection Notes

Select this component when a solid, non-split ferrite core is required for permanent cable installations. The 128 Ohm impedance at 100 MHz suits applications targeting higher frequency noise. Consider the physical dimensions to ensure adequate clearance around the cable assembly.

Part Context

This part belongs to the 28 series of cable ferrites from Laird-Signal Integrity Products. These components are passive filters used to suppress electromagnetic interference on cables. The series offers various impedance values and physical sizes to suit different cable diameters and frequency requirements.

Replacement Considerations

Direct substitutes may include other solid ferrite cores with similar impedance and dimensional specifications. Verify compatibility with Material 28 characteristics. Alternative brands should match the 128 Ohm @ 100 MHz rating and 6.35 mm inner diameter.

FAQ

What is the impedance of the 28B0390-000 at 100 MHz?

The impedance is 128 Ohms at 100 MHz.

What is the inner diameter of this ferrite core?

The inner diameter is 0.250 inches (6.35 mm).