MEXR104K101J384

Overview

The MEXR104K101J384 is a wire-wound EMI/RFI filter capacitor manufactured by Meritek Electronics. It features a capacitance of 0.1 µF with a resistance value of 100 Ohms and a voltage rating of 300 VAC. The component utilizes a radial leaded construction designed for through-hole mounting on printed circuit boards. This device integrates filtering capabilities directly into the capacitor structure to suppress electromagnetic interference in AC power line applications.

Feature Summary

• Integrated resistance and capacitance for combined filtering functions
• Radial leaded design suitable for through-hole PCB assembly
• Rated for 300 VAC operation in AC power environments

Applications

• AC power line EMI suppression
• RFI noise reduction in consumer electronics
• Input filtering for AC-powered devices

Procurement Notes

Verify the specific suffix J384 against the manufacturer's current datasheet to confirm lead length, bending radius, and packaging specifications. Ensure the 100 Ohm resistance value aligns with the circuit's impedance requirements. Confirm RoHS compliance status if required by the end product regulations. Cross-reference the 300 VAC rating with the actual operating voltage to ensure adequate safety margins.

Selection Notes

Select this component when simultaneous capacitance and series resistance are required for EMI attenuation without additional discrete resistors. The 0.1 µF value targets high-frequency noise suppression. Verify that the through-hole form factor fits the mechanical constraints of the target enclosure. Consider the thermal dissipation capabilities of the 100 Ohm resistor element under continuous AC load conditions.

Part Context

This part belongs to Meritek's passive component portfolio, specifically within their EMI/RFI filtering category. Unlike standard capacitors, this component combines energy storage with signal damping. It serves as a specialized solution for noise control in AC circuits, distinguishing itself from general-purpose ceramic or electrolytic capacitors by its integrated resistive properties.

Replacement Considerations

Direct substitutes must match the 0.1 µF capacitance, 100 Ohm resistance, and 300 VAC rating. Check alternative manufacturers for radial leaded RC filter capacitors with identical terminal configurations. Verify that any replacement maintains the same frequency response characteristics and physical dimensions for board compatibility.