28B0355-0

Overview

The Leader Tech Inc. 28B0355-0 is a solid round ferrite core designed for cable and wire applications. It features a Nickel-Zinc (NiZn) material composition, specifically grade N, optimized for high-frequency noise suppression. The component has an inner diameter of 4.70 mm (0.187 inches) and an outer diameter of 20.00 mm (0.787 inches). Its length measures 10.00 mm (0.394 inches). The core provides an impedance of 138 ohms at a frequency of 100 MHz, making it suitable for EMI filtering in electronic assemblies.

Feature Summary

• Solid round geometry allows for easy installation onto single cables without disconnection.
• Nickel-Zinc material composition supports effective high-frequency noise attenuation.
• Snap-on design facilitates rapid manual or automated assembly processes.

Applications

• Suppression of electromagnetic interference on single data cables
• Filtering noise on power supply lines in compact electronics
• EMI mitigation in telecommunications equipment wiring

Procurement Notes

Verify the specific impedance tolerance and material grade designation against the manufacturer's current datasheet before finalizing procurement. Confirm that the inner diameter matches the target cable bundle size to ensure proper fit and magnetic coupling efficiency. Check for RoHS compliance status if required by regional regulations.

Selection Notes

Select this component when a solid, non-split ferrite bead is required for permanent cable installations where access for split-core installation is limited. Ensure the operating frequency range aligns with the 138 ohm specification at 100 MHz. Consider the physical dimensions to verify clearance within the enclosure design.

Part Context

This part belongs to the Leader Tech ferrite core family, which includes various shapes such as snap-ons, beads, and toroids. The 28B series typically utilizes Nickel-Zinc materials for higher frequency performance compared to Manganese-Zinc alternatives. These components are standard passive elements used for passive EMI/RFI suppression in consumer and industrial electronics.

Replacement Considerations

Public confirmed substitute part numbers: None identified in available documentation.