0805J0500393MXTE01

Overview

The Knowles Syfer 0805J0500393MXTE01 is a three-terminal EMI filter capacitor in an 0805 (2012 metric) surface-mount package. It features a capacitance of 0.039 µF with a ±20% tolerance and utilizes X7R dielectric material. The component has a DC voltage rating of 50 VDC and a current rating of 300 mA. Designed for high-reliability applications, it operates within a temperature range of -55°C to +125°C.

Feature Summary

• Three-terminal architecture providing enhanced electromagnetic interference filtering performance
• Pass-through design allowing direct signal path integration without circuit modification
• Nickel barrier and 100% tin termination system ensuring robust solderability

Applications

• High-speed data line protection in communication equipment
• Power supply input filtering for sensitive electronic circuits
• EMI suppression in compact mobile device architectures

Procurement Notes

Verify the specific suffix TE01 against official datasheets to confirm terminal configuration and packaging type. Ensure compatibility with standard reflow soldering profiles for nickel-barrier terminations. Cross-reference the 300 mA current rating with application requirements to prevent thermal issues during operation.

Selection Notes

Select this component when space-constrained designs require effective common-mode noise reduction. The 0805 footprint offers a balance between capacitance density and board area. Consider the X7R temperature stability characteristics for environments subject to moderate thermal variations.

Part Context

This part belongs to the Knowles Syfer EMI Filter series, specifically the three-terminal feedthrough capacitor category. These components are engineered to replace traditional two-terminal capacitors where superior high-frequency attenuation is necessary within limited PCB real estate.

Replacement Considerations

Consult official substitution guides for equivalent three-terminal filters from the same manufacturer family. Verify that alternative parts match the 0805 dimensions, 50V rating, and 300 mA current handling capabilities.