QAS254K600D047

Overview

The QAS254K600D047 is a polyester film snubber capacitor from the QAS series, manufactured by Cornell Dubilier Knowles. It features a capacitance of 0.25 µF with a ±10% tolerance and a DC voltage rating of 600 VDC. The component includes an integrated 47 Ohm resistor for arc suppression. It utilizes radial straight leads with a 30.5 mm spacing and operates within a temperature range of -55°C to +85°C. Physical dimensions are 36.8 mm in length, 10.6 mm in width, and 19 mm in height.

Feature Summary

• Integrated RC network combining a 0.25 µF polyester capacitor with a 47 Ohm resistor for simultaneous filtering and damping.
• Designed specifically as an arc suppressor to reduce or eliminate electrical arcing, noise, and electromagnetic interference (EMF).
• Radial through-hole construction with straight leads for standard PCB mounting applications.

Applications

• Switching power supply circuits requiring EMI/RFI suppression.
• Motor control systems needing arc suppression across contacts.
• General-purpose electronic equipment requiring noise reduction.

Procurement Notes

Verify the specific package dimensions and lead spacing against the mechanical drawing before integration. Confirm that the integrated 47 Ohm resistance aligns with the circuit's snubber requirements. Ensure the operating environment remains within the specified -55°C to +85°C thermal limits to maintain performance integrity.

Selection Notes

Select this component when a combined capacitive and resistive snubber solution is required in a single package. The 600 VDC rating suits medium-voltage applications. Verify that the polyester dielectric meets the environmental stability needs of the target application compared to polypropylene alternatives.

Part Context

This part belongs to the QAS series of arc suppressor/snubber networks from Cornell Dubilier Knowles. These components are engineered to replace discrete RC networks, saving board space and simplifying assembly. The series is categorized under EMI/RFI filters and film capacitors, targeting industrial and consumer electronics markets.

Replacement Considerations

QAS504K600D047 offers identical physical dimensions and voltage ratings but provides 0.5 µF capacitance instead of 0.25 µF. Both parts share the same 47 Ohm integrated resistance and radial packaging style.