QAS254K600D150

Overview

The QAS254K600D150 is a metallized polypropylene film capacitor from the Cornell Dubilier Knowles QAS series, designed as an RC snubber network. It features a capacitance of 0.25 µF with a DC voltage rating of 600 VDC and an AC rating of 275 VAC to 310 VAC. The component integrates a 150 Ohm resistor in series with the capacitor element. It utilizes self-healing metallized polypropylene dielectric for reliability. The unit employs a radial leaded termination configuration suitable for through-hole mounting.

Feature Summary

• Integrates a 150 Ohm resistor with a 0.25 µF capacitor to form a complete RC snubber network
• Utilizes self-healing metallized polypropylene film dielectric for enhanced reliability
• Rated for operation within 275 VAC to 310 VAC electrical environments

Applications

• Arc suppression in switching circuits
• Electrical noise reduction in power electronics
• Electromagnetic interference (EMI) mitigation

Procurement Notes

Verify that the specific part number matches the required resistance value of 150 Ohms and capacitance of 0.25 µF. Confirm the radial lead spacing and physical dimensions align with the target PCB layout. Ensure the voltage ratings meet the system's peak operating conditions. Check for RoHS compliance requirements if applicable to the assembly process.

Selection Notes

Select this component when a combined resistive-capacitive solution is needed for transient suppression. The integrated design simplifies assembly compared to discrete components. Consider the thermal dissipation capabilities of the internal resistor during high-frequency switching operations. Verify compatibility with the intended AC line voltage range before integration into the final circuit design.

Part Context

This component belongs to the QAS series of arc suppressor and snubber networks manufactured by Cornell Dubilier Knowles. The series is engineered to reduce or eliminate electrical arcing, noise, and electromagnetic fields in various industrial and commercial applications. These capacitors are distinct from standard passive components due to their built-in resistive elements.

Replacement Considerations

Substitutes must match the 0.25 µF capacitance, 150 Ohm resistance, and 600 VDC rating. Verify that alternative parts offer similar self-healing characteristics and radial packaging. Ensure the replacement supports the same AC voltage range and maintains equivalent EMI suppression performance.