4221R-1

Overview

The Delevan 4221R-1 is a surface-mount ferrite bead designed for EMI and RFI suppression. It features a single line with an impedance of 47 Ohms at 100 MHz and supports a maximum DC current of 5 A. The component operates within a temperature range of -55°C to +125°C. Its physical dimensions are 5.00 mm in length, 3.05 mm in width, and a maximum height of 3.25 mm. The device utilizes a 2-SMD J-lead package configuration.

Feature Summary

• Provides electromagnetic interference suppression through high-frequency impedance characteristics
• Utilizes a surface-mount J-lead package for reliable circuit board attachment
• Engineered for operation across extended industrial temperature ranges

Applications

• High-speed digital signal line filtering
• Power supply output noise reduction
• General-purpose EMI suppression in compact electronic assemblies

Procurement Notes

Verify the specific manufacturer designation, as API Delevan components may carry different branding than historical records. Confirm RoHS compliance status directly with the supplier documentation. Ensure the ordering suffix matches the required packaging format, such as cut tape or reel quantities, to align with assembly requirements.

Selection Notes

Select this component when a 47 Ohm impedance at 100 MHz is required for noise attenuation. The 5 A current rating suits moderate power applications. The J-lead footprint must be matched to the PCB land pattern. Verify thermal management needs against the 125°C maximum operating limit.

Part Context

This part belongs to the 4221R series of ferrite beads manufactured by API Delevan. The series offers various impedance values while maintaining consistent physical footprints and current handling capabilities. These components are standard passive filters used in modern electronics for signal integrity maintenance.

Replacement Considerations

Cross-reference with other 4221R series variants like the 4221R-2 for different impedance levels. Ensure substitute parts match the 5.00 x 3.05 mm footprint and 5 A current rating. Verify that alternative suppliers provide equivalent high-frequency performance data.