WLBD1005HCU331TL

Overview

The WLBD1005HCU331TL is a ferrite chip bead manufactured by Walsin Technology Corporation. It features an impedance of 330 Ohms at a test frequency of 100 MHz and a maximum DC resistance of 150 mOhms. The component operates within a temperature range of -55°C to +125°C and supports a maximum DC current of 1.5 A. It utilizes a 0402 (1005 metric) surface mount package with dimensions of 1 mm length, 0.5 mm width, and 0.5 mm height.

Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics at specific frequencies.
• Designed for surface mount technology integration in compact electronic assemblies.
• Constructed with flexible terminals to accommodate standard PCB mounting processes.

Applications

• EMI suppression in power line circuits
• Signal integrity management in high-speed digital interfaces
• Noise filtering in portable consumer electronics

Procurement Notes

Verify the manufacturer part number against official Walsin documentation to ensure authenticity. Confirm that the requested units match the specified 0402 package size and electrical ratings. Check for RoHS compliance status as indicated in the latest datasheet. Ensure storage conditions adhere to moisture sensitivity levels if applicable. Validate supplier authorization before procurement.

Selection Notes

Select this component when a 330 Ohm impedance at 100 MHz is required for noise attenuation. Consider the 1.5 A current rating for power line applications. The 0402 footprint suits space-constrained designs. Evaluate the 150 mOhm DC resistance impact on circuit efficiency. Ensure operating temperatures remain within the -55°C to +125°C range.

Part Context

This ferrite bead belongs to the WLBD series from Walsin Technology Corporation, designed for surface mount applications. The 0402 form factor allows for dense PCB layouts. Ferrite beads in this category are primarily used for high-frequency noise suppression rather than inductive energy storage. The material composition optimizes impedance performance across the targeted frequency spectrum.

Replacement Considerations

Consult Walsin's official cross-reference guides for verified substitutes. Ensure replacement parts maintain identical 330 Ohm impedance at 100 MHz and compatible current ratings. Verify mechanical compatibility with the 0402 footprint. Confirm thermal performance matches the original specifications.