HCB20-391-RC

Chip Ferrite Bead Overview

The HCB20-391-RC is a surface-mount ferrite bead from Allied Components International, housed in a 1206 package. It provides an impedance of 390 Ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum current rating of 1A and features a maximum DC resistance of 25 milliohms. It operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high impedance for effective electromagnetic interference suppression
• Supports high current operation suitable for power line filtering
• Designed for surface-mount assembly in compact electronic circuits

Chip Ferrite Bead Applications

• Power supply output filtering
• Data line noise suppression
• General-purpose EMI/RFI attenuation in consumer electronics

Chip Ferrite Bead Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before integration. Confirm that the 1206 package dimensions match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Chip Ferrite Bead Selection Notes

Select this component when a 1206 footprint is required for high-current filtering applications. The 390 Ohm impedance at 100 MHz targets specific noise frequencies. The low DC resistance minimizes voltage drop in power paths. Consider the 1A current limit to ensure reliability under peak load conditions without saturation.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the HCB20 series of high-current beads manufactured by Allied Components International. The series offers various impedance values and current ratings in standard packages. These components are designed to replace discrete inductors or resistors in noise suppression roles while maintaining low profile and cost efficiency.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other 1206 ferrite beads with comparable 390 Ohm impedance and 1A current ratings. Verify that alternative parts meet the same -55°C to +125°C temperature range and 25 milliohm DCR specifications to maintain circuit performance.