WLBD1005HCU181TL

Overview

The WLBD1005HCU181TL is a single-element ferrite chip bead manufactured by Walsin Technology Corporation, designed for electromagnetic interference (EMI) suppression. It features a 0402 (1005 metric) surface-mount package with dimensions of 1 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 180 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 90 mOhms. The device operates within a temperature range of -55°C to +125°C and utilizes flexible soft terminals.

Feature Summary

• Provides effective high-frequency noise attenuation for power lines and signal circuits through ferrite material properties.
• Features shielded construction to minimize external magnetic field interference during operation.
• Utilizes flexible soft terminal technology to enhance mechanical reliability and solder joint integrity on printed circuit boards.

Applications

• Electromagnetic interference suppression in portable electronic devices
• Noise filtering for power supply lines in consumer electronics
• Signal integrity enhancement in compact communication modules

Procurement Notes

Verify the specific ordering suffix and packaging configuration against official distributor catalogs to ensure compatibility with automated assembly processes. Confirm RoHS compliance status and lead time requirements directly with authorized suppliers prior to procurement. Cross-reference the manufacturer part number with datasheet specifications to validate impedance and current ratings for the intended application environment.

Selection Notes

Select this component based on the required impedance value at the target noise frequency and the available board space constraints. Ensure the maximum DC current rating of 1.5 A exceeds the operational current of the circuit to prevent saturation. Verify that the 0402 footprint matches the design layout and that the operating temperature range meets the environmental conditions of the final product.

Part Context

This ferrite bead belongs to the WLBD series from Walsin Technology Corporation, which specializes in passive components for EMI suppression. The series offers various impedance values and package sizes to accommodate different circuit requirements. The WLBD1005HCU181TL specifically addresses needs for moderate impedance in small form-factor applications, complementing other variants like the WLBD1005HCU800TL for lower impedance scenarios.

Replacement Considerations

Direct substitutes must match the 180 Ohm impedance at 100 MHz, 0402 package size, and 1.5 A current rating. Evaluate alternative ferrite beads from other manufacturers ensuring identical electrical characteristics and thermal performance. Verify pinout compatibility and solderability before integrating any cross-brand replacement into existing designs.