LB 2.8X4.5U

Chip Ferrite Bead Overview

The LB2.8X4.5U is a ferrite bead manufactured by Toshiba Semiconductor and Storage, designed for electromagnetic interference (EMI) suppression in electronic circuits. This component features an axial package with a kinked radial bend configuration, facilitating through-hole mounting on printed circuit boards. It is constructed as a single-line device intended to attenuate high-frequency noise signals while allowing DC current to pass with minimal resistance. The unit is rated for a maximum current of 5A typical, ensuring reliable operation in power supply lines and other applications requiring robust noise filtering capabilities.

Chip Ferrite Bead Feature Summary

• Provides effective attenuation of high-frequency electromagnetic interference signals
• Features axial lead configuration with kinked radial bend for secure PCB mounting
• Designed for through-hole installation in electronic assemblies

Chip Ferrite Bead Applications

• Power supply line noise suppression
• DC-DC converter output filtering
• General-purpose EMI suppression in consumer electronics

Chip Ferrite Bead Procurement Notes

Verify the manufacturer designation matches Toshiba Semiconductor and Storage or Toshiba Electronic Devices and Storage Corporation. Confirm the part number includes the specific suffix U and the axial kinked radial bend package style. Ensure the current rating aligns with system requirements of 5A typical. Request original datasheets to validate electrical characteristics and physical dimensions before procurement.

Chip Ferrite Bead Selection Notes

Select this component when axial mounting is required for high-current noise suppression applications. The kinked radial bend design aids in mechanical stability during assembly. Verify that the 5A typical current rating meets the operational demands of the target circuit. Consider the single-line configuration for standard ground or power rail filtering needs.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the LB series from Toshiba, which offers various impedance characteristics and package styles for EMI suppression. The axial form factor distinguishes it from surface-mount alternatives, providing flexibility for legacy or high-power board designs. The series is widely used in industrial and consumer electronics for signal integrity improvement.

Chip Ferrite Bead Replacement Considerations

Consult official Toshiba documentation for direct cross-references. Generic ferrite beads with similar axial packages and current ratings may serve as functional substitutes if impedance curves match the application requirements.