WLBD4516HCU851PH

Overview

The WLBD4516HCU851PH is a single-channel ferrite chip bead manufactured by Walsin Technology Corporation. It features an 1806 (4516 metric) surface-mount package with dimensions of 4.5 mm length, 1.6 mm width, and 1.6 mm height. The component provides an impedance of 850 Ohms at a test frequency of 100 MHz with a tolerance of +/-25%. It supports a maximum DC current of 1.5 A and has a maximum DC resistance of 150 mOhms. The device operates within a temperature range of -55°C to +125°C and utilizes flexible SMD/SMT terminations.

Feature Summary

• Provides high impedance attenuation for noise suppression in power lines
• Features shielded construction to minimize electromagnetic interference
• Utilizes flexible soft terminations for improved solder joint reliability

Applications

• Power line filtering in electronic circuits
• Noise suppression in high-current signal paths
• EMI reduction in compact surface-mount assemblies

Procurement Notes

Verify the specific impedance value and current rating against the official Walsin datasheet before integration. Confirm that the 1806 package dimensions align with the PCB footprint design. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when high impedance is required at 100 MHz for power line applications. The 1.5 A current rating suits moderate power handling needs. The 1806 package offers a balance between size and thermal performance. Verify compatibility with automated pick-and-place equipment due to the reel packaging format.

Part Context

This ferrite bead belongs to the WLBD series from Walsin, designed for surface-mount technology. It is part of a family of chip beads available in various impedances and packages. The HC designation typically indicates a high-current variant within the product line. It serves as a passive component for signal integrity management.

Replacement Considerations

Check for direct substitutes with identical 850 Ohm impedance and 1.5 A rating in the 1806 package. Ensure replacement parts maintain the same flexible termination style and shielding characteristics. Verify dimensional compatibility to prevent assembly issues.