P409EL474M275AH470

Overview

The KEMET P409EL474M275AH470 is a metallized paper film capacitor designed for EMI suppression. It features a capacitance of 470 nF with a ±20% tolerance and an AC voltage rating of 275 VAC. The component supports a DC voltage rating of 630 VDC and operates within a temperature range of -40°C to +85°C. It utilizes a radial leaded package with a 25.4 mm lead spacing and straight leads. Certified as an X2 safety class component, it meets EN/IEC 60384-14, UL 60384-14, and CAN/CSA-E60384-14-09 standards.

Feature Summary

• X2 safety class certification for mains connection across the primary isolation barrier
• Metallized paper dielectric construction for high surge current handling
• Radial through-hole termination with standardized lead spacing

Applications

• EMI suppression in general-purpose AC power supplies
• Cross-line noise filtering in household appliances
• RC snubber circuits in industrial control equipment

Procurement Notes

Verify the specific ordering suffix against official KEMET documentation to confirm lead length and packaging configuration. Ensure the selected variant matches the required mechanical dimensions for the target PCB layout. Confirm compliance with regional safety regulations applicable to the final assembly before procurement.

Selection Notes

Select this component when X2 safety certification is mandatory for cross-line applications. The metallized paper dielectric offers robust performance under high surge conditions compared to standard film types. Verify that the 275 VAC rating aligns with the local mains voltage environment and that the operating temperature range suits the enclosure conditions.

Part Context

This part belongs to the KEMET P409 series, which specializes in metallized paper capacitors for EMI suppression. The series is engineered for reliability in AC line filtering applications where safety certifications are required. It serves as a critical component for reducing conducted electromagnetic interference in electronic devices connected to the public mains supply.

Replacement Considerations

Direct substitutes include other X2 rated metallized paper capacitors from KEMET such as the P409QM or P409CE series, provided they match the 470 nF capacitance, 275 VAC rating, and 25.4 mm lead spacing. Cross-manufacturer replacements must verify identical safety approvals (UL, EN/IEC) and physical footprint compatibility.