782963851

Overview

The Würth Elektronik 782963851 is an EMI suppression ferrite bead from the WE-CBA series, designed for surface mount applications. It features a single-line configuration with an impedance of 850 ohms and a maximum DC current rating of 1.5 A. The component exhibits a maximum DC resistance of 0.1 ohms and operates within a temperature range of -55°C to +125°C. Packaged in an 1806 (4516 Metric) footprint measuring 4.5 mm x 1.6 mm, it meets AEC-Q200 qualification standards for automotive reliability.

Feature Summary

• Provides high impedance attenuation for effective electromagnetic interference suppression in single-line circuits
• AEC-Q200 qualified for enhanced reliability in demanding automotive electronic environments
• Compact 1806 surface mount package facilitates automated assembly and space-constrained PCB layouts

Applications

• Automotive electronics requiring AEC-Q200 compliant components
• Single-line EMI filtering in consumer and industrial devices
• Signal line protection against high-frequency noise

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Würth Elektronik or authorized distributors before procurement. Confirm that the 1806 package dimensions align with your PCB footprint design rules. Ensure the 1.5 A current rating satisfies the operational requirements of your target circuit under all expected thermal conditions.

Selection Notes

Select this component when high attenuation at specific frequencies is required for single-line applications. The 850 ohm impedance offers significant noise reduction compared to lower impedance beads. Consider the 0.1 ohm DC resistance impact on voltage drop if the circuit current approaches the 1.5 A limit. The AEC-Q200 certification makes it suitable for automotive upgrades where standard commercial parts are insufficient.

Part Context

This part belongs to the WE-CBA series of ferrite beads, which are engineered for general-purpose EMI suppression. The series utilizes specialized materials to provide stable impedance characteristics over a wide frequency range. The 782963851 variant specifically targets applications needing higher impedance values while maintaining a compact form factor suitable for modern high-density electronics.

Replacement Considerations

Check for direct substitutes within the WE-CBA series with similar impedance and current ratings. Verify that any alternative component matches the 1806 package dimensions and AEC-Q200 qualification if automotive use is intended. Ensure the replacement maintains comparable DC resistance to avoid circuit performance deviations.