1812J5000473MJTE03

Overview

The Knowles Syfer 1812J5000473MJTE03 is a feed-through capacitor designed for surface-mount technology. It features a capacitance of 0.047 µF with a voltage rating of 500 V and a tolerance of ±20%. The component utilizes X7R dielectric material and operates within a temperature range of -55°C to +125°C. It supports a current rating of 50 mA and is housed in an 1812 (4532 metric) package footprint.

Feature Summary

• Integrates feed-through architecture for effective electromagnetic interference suppression
• Utilizes flexible terminal construction to enhance mechanical reliability under stress
• Provides high capacitance density within a compact surface-mount form factor

Applications

• High-frequency signal filtering in electronic circuits
• Power supply line noise reduction
• Electromagnetic compatibility enhancement in sensitive equipment

Procurement Notes

Verify the complete part number including the E03 suffix, as it denotes specific packaging or tape-and-reel configurations that may differ from standard bulk units. Confirm the 50 mA current rating aligns with circuit requirements. Ensure the X7R dielectric characteristics meet the thermal stability needs of the target application environment before finalizing procurement.

Selection Notes

Select this component when board space is limited but significant filtering performance is required. The 1812 package allows for robust soldering compared to smaller footprints. Consider the 50 mA current limit during design; if higher current handling is necessary, evaluate alternative series or parallel configurations. The X7R dielectric offers stable capacitance over the operating temperature range.

Part Context

This component belongs to the Knowles Syfer feed-through capacitor series, which combines passive filtering with surface-mount convenience. These devices are engineered to replace traditional through-hole feed-through capacitors, enabling automated assembly processes while maintaining high-performance noise attenuation capabilities in modern electronic designs.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided documentation. Verify pinout compatibility and electrical specifications against potential alternatives from other manufacturers before substitution.