4120R-601-250/500L

Overview

The Bourns Inc. 4120R-601-250/500L is an eight-channel RC T-type EMI filter designed for through-hole mounting. It features a low-pass configuration with a resistance of 25 ohms and a capacitance of 50 picofarads per channel. The component operates at a voltage rating of 25V and utilizes a 20-pin DIP package with a 0.300-inch (7.62mm) lead spacing. This device provides general-purpose noise suppression for electronic circuits.

Feature Summary

• Eight-channel RC T-type network architecture for multi-line filtering
• Low-pass topology for effective EMI and RFI suppression
• Through-hole mounting style for robust mechanical attachment

Applications

• General-purpose noise suppression in electronic assemblies
• Power line filtering applications
• EMI/RFI suppression in signal processing circuits

Procurement Notes

This component is officially discontinued by the manufacturer. Verification of availability requires checking secondary market distributors or surplus suppliers. Confirm end-of-life status and substitute part numbers before finalizing procurement plans due to manufacturing cessation.

Selection Notes

Select this component when an eight-channel, low-pass RC filter is required for through-hole implementation. Ensure the circuit design accommodates the 25V rating and 25-ohm/50-picofarad values. Verify that the 20-DIP package dimensions fit the target PCB layout constraints.

Part Context

Part of the Bourns 601 series of EMI filter circuits. Designed specifically for suppressing electromagnetic interference in multi-conductor systems using passive RC networks. The product line focuses on reliable noise reduction for industrial and commercial electronics.

Replacement Considerations

Consult official Bourns documentation for confirmed substitute part numbers. Evaluate alternative eight-channel RC filters with compatible electrical parameters and package footprints if direct replacements are unavailable.