504M02QA100

Overview

The Cornell Dubilier Knowles 504M02QA100 is a radial metallized polyester RC network designed for transient suppression and EMI/RFI filtering. It integrates a 0.5 µF capacitor with a 100 Ω resistor in a single rectangular component. The device features a rated voltage of 200 VDC (125 VAC) and utilizes Quencharc technology to ensure safety by preventing short circuits during dielectric failure. This first-order low-pass filter provides effective noise attenuation in electronic circuits.

Feature Summary

• Integrates a 0.5 µF capacitance with a 100 Ohm series resistance for combined filtering and damping.
• Employs Quencharc metallized polyester construction to safely isolate internal faults and prevent short circuits.
• Provides first-order low-pass filtering characteristics for EMI and RFI suppression.
• Features radial leads for through-hole printed circuit board mounting.

Applications

• Transient suppression in AC power lines
• EMI/RFI filtering in single-phase equipment
• Snubber networks for switching devices

Procurement Notes

Verify the specific suffix 'QA' confirms the Quencharc safety feature and 200V DC rating. Ensure the radial package dimensions match the target PCB layout. Confirm that the 100 Ohm resistance value aligns with the required damping or filtering specifications for the application circuit.

Selection Notes

Select this component when a combined RC filter and transient suppressor is required in a compact radial package. The Quencharc technology is critical for applications where component failure must not cause a short circuit hazard. Verify that the 0.5 µF capacitance and 100 Ohm resistance values meet the specific frequency response and current handling requirements of the design.

Part Context

This part belongs to the Cornell Dubilier 504M series of RC networks. These components are specifically engineered for safety-critical filtering applications where standard capacitors might fail dangerously. The series utilizes metallized polyester film to achieve high reliability and self-healing properties, distinguishing it from non-safety-rated RC assemblies.

Replacement Considerations

Direct substitutes must match the 0.5 µF capacitance, 100 Ohm resistance, and radial form factor. Verify that any replacement also incorporates Quencharc or equivalent safety-fail-safe technology to maintain compliance with electrical safety standards. Check voltage ratings to ensure they meet or exceed 200 VDC.

FAQ

What is the function of the Quencharc technology in this component?

Quencharc technology ensures that if the dielectric fails due to overvoltage or aging, the metallized electrodes vaporize away from the fault area, opening the circuit rather than creating a short circuit.

Is this component suitable for AC or DC applications?

Yes, it is rated for both 125 VAC and 200 VDC, making it suitable for various power line filtering and transient suppression tasks.