WLBD3216K2U152PP

Overview

The WLBD3216K2U152PP is a single-element ferrite chip bead manufactured by Walsin Technology Corporation. It features a 1206 (3216 metric) surface-mount package with dimensions of 3.2 mm length, 1.6 mm width, and 1.1 mm height. The component provides an impedance of 1.5 kOhms at 50 MHz with a tolerance of +/-25%. It supports a maximum DC current of 200 mA and has a maximum DC resistance of 500 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 noise suppression for high-frequency signals in compact surface-mount designs
• Features shielded construction to minimize electromagnetic interference coupling
• Utilizes flexible soft terminations to enhance solder joint reliability under mechanical stress

Applications

• High-speed data line filtering in portable electronic devices
• Power supply noise suppression in consumer electronics
• EMI mitigation in communication equipment signal paths

Procurement Notes

Verify the specific impedance value and test frequency against project requirements, as ferrite characteristics vary significantly with frequency. Confirm that the 200 mA current rating aligns with the operational DC load to prevent saturation. Ensure the 1206 footprint matches the PCB layout constraints. Check RoHS compliance status if required by regional regulations.

Selection Notes

Select this component when high attenuation is needed at 50 MHz with limited space. Compare the 500 mOhms DC resistance impact on voltage drop against alternatives. Consider the 200 mA limit for power integrity. Evaluate thermal performance at the maximum operating temperature of 125°C. Verify compatibility with standard reflow soldering profiles for 1206 packages.

Part Context

This part belongs to Walsin's WLBD series of ferrite beads, designed for general-purpose EMI suppression. The K2 suffix typically denotes specific material properties optimized for higher impedance ranges compared to lower-value variants in the same family. It shares the 1206 form factor with other models like WLBD3216K2U121PP but offers distinct electrical characteristics.

Replacement Considerations

WLBD3216K2U121PP offers 120 Ohms impedance; WLBD3216K2U202PP offers 2000 Ohms impedance. Both share the 1206 package and similar current ratings. Verify impedance matching for the target noise frequency before substitution.