MEXR474K471J382

Overview

The MEXR474K471J382 is a first-order low-pass RC EMI filter manufactured by Meritek Electronics. It integrates a 470 Ohm resistor and a 0.47 µF capacitor within a single radial through-hole package. The component is rated for 300 VAC operation and features an operating temperature range of -40°C to +100°C. Designed for general-purpose applications, it provides effective suppression of electromagnetic interference in electronic circuits.

Feature Summary

• Integrates a 470 Ohm resistor and 0.47 µF capacitor into a single unit
• Provides first-order low-pass filtering characteristics
• Rated for 300 VAC operation
• Supports wide temperature range from -40°C to +100°C

Applications

• General purpose EMI/RFI suppression
• Low-pass filtering in signal lines
• Noise reduction in electronic assemblies

Procurement Notes

Verify the specific voltage rating (300VAC) and capacitance value (0.47µF) against circuit requirements. Confirm the through-hole radial package dimensions fit the PCB layout. Ensure the operating temperature range meets environmental conditions. Check for RoHS compliance if required by project specifications.

Selection Notes

Select this component when a compact, integrated solution for first-order low-pass filtering is needed. It combines resistance and capacitance in one package, saving board space compared to discrete components. Suitable for general-purpose noise suppression where precise impedance matching is not critical.

Part Context

This part belongs to Meritek's EMI/RFI filter series, specifically RC networks. These components are designed to attenuate high-frequency noise while passing lower frequency signals or DC. The radial leaded format facilitates easy insertion into standard PCB layouts.

FAQ

What is the cutoff frequency characteristic of this filter?

As a first-order RC low-pass filter with 470 Ohms and 0.47 µF, it provides basic attenuation above its cutoff frequency.

Is this component suitable for AC line applications?

Yes, it is rated for 300 VAC, making it suitable for certain AC line filtering applications within its voltage limits.