4420P-601-470/201

Overview

The Bourns Inc. 4420P-601-470/201 is an eight-channel surface-mount RC (T-Type) EMI filter designed for low-pass signal conditioning. It features a first-order filtering topology with integrated resistors of 47 Ohms and capacitors of 200pF per channel. The component operates at a rated voltage of 25V and occupies a compact footprint measuring 0.510 inches in length by 0.295 inches in width, facilitating dense circuit board layouts.

Feature Summary

• Eight independent channels for simultaneous multi-line noise suppression
• RC T-Type architecture providing effective high-frequency attenuation
• Surface-mount design optimized for automated assembly processes

Applications

• General-purpose EMI suppression in digital circuits
• Signal line protection for microcontroller interfaces
• Noise filtering in data communication pathways

Procurement Notes

Verify the specific suffix /201 against official Bourns documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the ordered part number matches the required 47 Ohm resistance and 200pF capacitance values precisely. Cross-reference the rated voltage of 25V with system operating conditions to prevent derating issues during procurement validation.

Selection Notes

Select this component when multiple signal lines require identical low-pass filtering characteristics within a constrained area. The fixed 47 Ohm and 200pF values suit applications targeting specific cutoff frequencies without external component variation. Consider the SMD package size relative to available PCB real estate and thermal management requirements for reliable integration.

Part Context

This device belongs to the 4420P series of RC network filters from Bourns Inc., categorized under EMI/RFI filters and LC/RC networks. It serves as a passive component solution for noise reduction rather than active processing. The series provides standardized filtering configurations for common electronic interface requirements.

Replacement Considerations

Consult official Bourns substitution guides for compatible alternatives. Verify that any substitute maintains the eight-channel configuration, 47 Ohm resistance, and 200pF capacitance values. Ensure physical footprint compatibility and electrical ratings match the original design constraints before implementation.