4420P-601-101/101L

Overview

The Bourns 4420P-601-101/101L is a Surface Mount Device (SMD) EMI filter circuit belonging to the 601 Series. It functions as an RC T-network filter designed for signal line protection. The component integrates resistors and capacitors into a single package, providing attenuation for electromagnetic interference. Key electrical parameters include a resistance value of 100 Ohms and a capacitance value of 100 picofarads. This configuration allows for compact integration in high-density PCB layouts while maintaining effective noise suppression capabilities for sensitive electronic circuits.

Feature Summary

• Integrates resistor and capacitor elements into a unified SMD package for space-efficient design
• Provides T-network topology for enhanced EMI/RFI attenuation on signal lines
• Designed for surface mount assembly to support automated manufacturing processes

Applications

• Signal line filtering in consumer electronics
• EMI suppression in data communication interfaces
• Noise reduction in portable device circuitry

Procurement Notes

Verify current availability status as this part may be subject to discontinuation or limited stock. Confirm RoHS compliance and lead-free specifications against the latest manufacturer documentation. Ensure the ordering suffix matches the required termination and packaging format. Cross-reference the full part number with official distributors to avoid counterfeit components. Check for any product change notifications that might affect pinout or performance characteristics.

Selection Notes

Select this component when a compact RC T-filter is required for specific impedance matching and noise filtering. The 100 Ohm resistance and 100 pF capacitance values define the cutoff frequency and attenuation profile. Consider the SMD package size for board space constraints. Evaluate thermal management requirements based on the power dissipation ratings specified in the datasheet. Ensure compatibility with the target signal frequency range for optimal filtering performance.

Part Context

This component belongs to the Bourns 4420P series of resistor networks and arrays. The series offers various configurations for different filtering and signal conditioning needs. The 601 series designation indicates specific internal architecture and parameter sets. These parts are engineered for reliability in commercial and industrial applications requiring robust EMI protection.

Replacement Considerations

Consult the official Bourns datasheet for direct cross-references. Verify that substitute components match the 100 Ohm resistance and 100 pF capacitance values. Ensure the replacement supports the same SMD footprint and mounting style. Confirm that the alternative part meets the same EMI attenuation requirements and operating temperature ranges.