4120R-601-250/201L

Overview

The Bourns 4120R-601-250/201L is an eight-channel RC (T-type) EMI filter circuit designed for through-hole mounting. It features a capacitance of 200 picofarads and a resistance of 25 ohms per channel, with a rated voltage of 25 volts DC. The component utilizes an 8-way DIP package with a 7.62 mm pin spacing. This low-pass network provides effective attenuation for electromagnetic interference in multi-line signal applications.

Feature Summary

• Eight independent channels for simultaneous multi-signal filtering
• RC T-network topology for enhanced high-frequency noise suppression
• Through-hole construction for robust mechanical stability

Applications

• Multi-line data bus protection
• Industrial control system signal conditioning
• Communication interface EMI mitigation

Procurement Notes

Verify the specific suffix configuration against current manufacturer documentation to ensure compatibility with existing board layouts. Confirm that the 25V rating meets the operational requirements of the target circuit. Check for any recent process change notifications or end-of-life declarations prior to finalizing procurement plans.

Selection Notes

Select this component when multiple signal lines require identical low-pass filtering characteristics within a single footprint. The 25-ohm resistance value suits moderate-speed digital signals where minimal impedance drop is required. Ensure the PCB layout accommodates the specified DIP package dimensions and pin pitch.

Part Context

This part belongs to the Bourns 601 series of passive filter networks. It is engineered specifically for EMI/RFI suppression in environments prone to electrical noise. The design integrates both resistive and capacitive elements to form a stable filtering solution without requiring external components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.