WLBD3216K2U102PP

Overview

The WLBD3216K2U102PP is a single-element ferrite chip bead manufactured by Walsin Technology Corporation. It features an SMD/SMT termination style within a 1206 (3216 metric) package, measuring 3.2 mm in length, 1.6 mm in width, and 1.1 mm in height. The component provides an impedance of 1 kOhms at a test frequency of 100 MHz with a tolerance of +/-25%. It supports a maximum DC current of 500 mA and has a maximum DC resistance of 400 mOhms. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides electromagnetic interference suppression through high-impedance characteristics at specific frequencies.
• Utilizes shielded construction to contain magnetic fields and reduce external noise coupling.
• Features flexible soft terminations to enhance mechanical reliability during surface mount assembly.

Applications

• High-speed data line filtering in portable electronic devices
• Power supply noise suppression on printed circuit boards
• Signal integrity management in communication modules

Procurement Notes

Verify the exact impedance value against the specific datasheet revision, as some sources indicate 2 kOhms while others specify 1 kOhms at 100 MHz. Confirm the maximum DC current rating matches your circuit requirements, noting discrepancies between 200 mA and 500 mA specifications across different documentation sets. Ensure the 1206 package dimensions align with your PCB footprint design before finalizing procurement orders.

Selection Notes

Select this component when a 1206 footprint is required for ferrite bead applications. Consider the 1 kOhm impedance level for effective attenuation at 100 MHz. Evaluate the 500 mA current handling capability against the peak load currents of the target circuit. Verify compatibility with standard reflow soldering profiles given the specified operating temperature range.

Part Context

This part belongs to Walsin's WLBD series of ferrite chip beads, designed for surface mount technology. The series offers various impedance values and current ratings within standardized metric packages like 1206. These components are engineered for compact electronic designs requiring efficient EMI/RFI noise suppression without occupying significant board space.

Replacement Considerations

WLBD3216K2U202PP: Offers higher impedance (2 kOhms) but lower current rating (200 mA). WLBD3216HCU500PH: Provides lower impedance (50 Ohms) with significantly higher current capacity (6 A). Both share the same 1206 package dimensions.