504M02QA220

Overview

The Cornell Dubilier Knowles 504M02QA220 is a first-order low-pass RC EMI filter featuring a 0.5 µF polyester dielectric and a 220 Ω internal resistor. Rated for 125 VDC, this radial component provides effective noise suppression in electronic circuits. It operates within a temperature range of -55°C to +85°C and dissipates up to 0.5 W. The unit utilizes a radial leaded package with a 20.8 mm lead pitch, ensuring compatibility with standard through-hole mounting processes.

Feature Summary

• Integrated RC network combining resistance and capacitance for single-stage filtering
• Polyester (PET) dielectric construction for stable electrical performance
• Radial leaded configuration facilitating automated or manual PCB insertion

Applications

• Electromagnetic interference (EMI) suppression in power supply inputs
• Signal line noise reduction in consumer electronics
• Arc suppression and snubber networks in switching applications

Procurement Notes

Verify the specific voltage rating and temperature coefficient requirements against the application environment before procurement. Confirm that the radial lead pitch matches the target PCB footprint dimensions. Ensure the 0.5 W power dissipation capability aligns with the expected thermal load during continuous operation to maintain reliability.

Selection Notes

Select this component when a compact, integrated solution for first-order low-pass filtering is required. The combination of 0.5 µF capacitance and 220 Ω resistance offers a specific cutoff frequency suitable for general-purpose noise attenuation. Consider the radial form factor for space-constrained boards where through-hole mounting is preferred over surface mount alternatives.

Part Context

This part belongs to the Cornell Dubilier Knowles arc suppressor and snubber network series. These components are engineered to reduce electrical arcing, noise, and electromagnetic fields (EMF). The 504M02QA220 specifically integrates passive elements into a single radial package, simplifying assembly compared to discrete resistor-capacitor combinations.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided documentation.