1206J0500392MJTE03

Overview

The Knowles Syfer 1206J0500392MJTE03 is a surface-mount feedthrough capacitor designed for high-frequency noise suppression. It features a capacitance of 3900 pF with a ±20% tolerance, rated for 50 VDC. The component utilizes an X2Y architecture within a 1206 (3216 metric) package, providing integrated EMI filtering capabilities. It operates reliably across a temperature range of -55°C to +125°C and meets IPC-E03 series standards for industrial applications.

Feature Summary

• Integrates X2Y technology for simultaneous common-mode and differential-mode noise attenuation
• Provides low-inductance signal path through three-terminal feedthrough structure
• Offers compact surface-mount footprint suitable for dense PCB layouts

Applications

• High-speed data line protection in communication equipment
• Power supply input filtering for sensitive electronic circuits
• EMI suppression in automotive infotainment systems

Procurement Notes

Verify the complete part number including the suffix TE03 to ensure correct packaging configuration. Confirm that the X2Y feedthrough topology aligns with the circuit design requirements rather than standard multilayer ceramic capacitors. Check manufacturer documentation for specific handling guidelines regarding the three-terminal soldering process.

Selection Notes

Select this component when space-constrained designs require effective broadband noise filtering without additional discrete components. The X2Y structure simplifies layout by reducing the number of required parts. Ensure the 50V rating exceeds the maximum DC bias voltage in the application to maintain capacitance stability and prevent dielectric breakdown.

Part Context

This component belongs to the Knowles Syfer X2Y family, which combines three terminals into a single monolithic structure. Unlike traditional two-terminal capacitors, it provides superior high-frequency performance by minimizing parasitic inductance. The 1206 package size balances electrical performance with board space efficiency for modern electronics.

Replacement Considerations

Direct substitutes must match the X2Y three-terminal architecture and 3900 pF capacitance. Standard MLCCs cannot replicate the dual-filtering capability. Verify pinout compatibility and thermal characteristics before substitution.