1206J1000393MXTE01

Overview

The Knowles Syfer 1206J1000393MXTE01 is a surface-mount feedthrough capacitor designed for EMI filtering. It features a capacitance of 39 nF with a ±20% tolerance and a DC voltage rating of 100 VDC. The component utilizes X7R dielectric material and operates within a temperature range of -55°C to +125°C. Housed in a 1206 (3216 metric) package, it measures 3.2 mm in length, 1.6 mm in width, and 1.1 mm in height. It supports a maximum current of 300 mA and provides insertion loss of 43 dB at 100 MHz.

Feature Summary

• Three-terminal feedthrough architecture providing effective electromagnetic interference suppression
• X7R ceramic dielectric ensuring stable capacitance performance across the specified operating temperature range
• Surface-mount construction compatible with standard SMD assembly processes

Applications

• General purpose EMI filtering in electronic circuits
• Power line noise suppression in compact devices
• Signal integrity protection in high-density PCB layouts

Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct termination and tolerance specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Cross-reference datasheet parameters such as insertion loss and current ratings with specific application needs to guarantee functional adequacy.

Selection Notes

Select this component when a three-terminal feedthrough topology is required for superior high-frequency noise attenuation compared to standard two-terminal capacitors. Ensure the 100 VDC rating and 300 mA current handling capacity align with circuit operational limits. Consider the 1206 footprint constraints and thermal operating range of -55°C to +125°C during board layout and environmental qualification.

Part Context

This component belongs to the Knowles Syfer EMI Filter series, specifically the 1206J family of surface-mount feedthrough capacitors. These parts are engineered for robust noise suppression in space-constrained applications. The product line emphasizes reliability and consistent electrical performance for industrial and commercial electronics requiring effective electromagnetic interference management.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.