782853221

Overview

The Würth Elektronik 782853221 is a surface-mount ferrite bead from the WE-CBA series, designed for signal line EMI suppression. It features an 0805 (2012 metric) package with dimensions of 2.00mm x 1.20mm and a maximum height of 1.10mm. The component provides an impedance of 220 Ohms at 100 MHz and has a DC resistance of 50 mOhms. It supports a rated current of 2A and operates within a temperature range of -55°C to +125°C. This single-line device is AEC-Q200 qualified.

Feature Summary

• Provides effective electromagnetic interference suppression for high-speed signal lines
• Compact surface-mount design suitable for space-constrained PCB layouts
• Automotive-grade qualification ensures reliability in demanding environments

Applications

• High-speed data interface protection
• Signal line filtering in automotive electronics
• EMI suppression in consumer electronic devices

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before integration. Confirm that the 0805 package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Check for RoHS compliance status if required by regulatory standards.

Selection Notes

Select this component when signal integrity preservation is critical alongside noise reduction. The low DC resistance minimizes voltage drop across the signal path. The AEC-Q200 qualification makes it suitable for automotive applications where long-term reliability is mandatory. Consider the 220 Ohm impedance profile for the specific frequency spectrum of the noise to be suppressed.

Part Context

This ferrite bead belongs to the WE-CBA series, which focuses on compact EMI solutions. The series offers various impedance values and current ratings to suit different circuit requirements. The 782853221 variant specifically targets applications requiring moderate impedance with a robust current handling capability in a standard small outline package.

Replacement Considerations

Direct substitutes must match the 0805 package, 220 Ohm @ 100 MHz impedance, and 2A current rating. Verify that alternative components also meet AEC-Q200 standards if used in automotive contexts. Ensure equivalent DC resistance and thermal characteristics to maintain circuit performance.