1206Y0250393MXTE07

Overview

The Knowles Syfer 1206Y0250393MXTE07 is a surface-mount multilayer ceramic capacitor (MLCC) designed as a three-terminal EMI filter. It features a capacitance of 0.039 µF with a tolerance of ±20% and a rated DC voltage of 25 VDC. The dielectric material is X7R, ensuring stability across an operating temperature range of -55°C to +125°C. This component utilizes a proprietary FlexiCap termination system combined with a nickel barrier and tin plating to enhance mechanical reliability against board flexing. The device is housed in a standard 1206 (3216 metric) package.

Feature Summary

• Three-terminal architecture provides effective electromagnetic interference filtering capabilities
• Proprietary flexible termination material accommodates significant board bending without cracking
• Nickel barrier construction ensures robust solderability and environmental resistance

Applications

• Board-flex sensitive electronic assemblies requiring enhanced mechanical durability
• High-reliability applications subjected to repeated thermal cycling
• Space-qualified electronic systems demanding superior mechanical performance

Procurement Notes

Verify the complete part number including suffixes to ensure correct termination and packaging specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference datasheet electrical parameters against design requirements to validate suitability for specific circuit conditions.

Selection Notes

Select this component when both EMI suppression and mechanical resilience are critical. The FlexiCap technology offers superior tolerance to board strain compared to conventional terminations. Ensure the application environment remains within the specified -55°C to +125°C operational temperature range for optimal performance.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which integrates flexible termination materials into standard MLCC footprints. The series is engineered to withstand board flexing and thermal cycling exceeding 1,000 times without failure. These capacitors have received recognition for innovation and qualified for space applications, offering high reliability in demanding environments.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 25V rating, 0.039µF capacitance, and three-terminal EMI filter structure. Verify that alternative components support the required FlexiCap-style mechanical flexibility if board strain is a concern. Standard two-terminal capacitors do not provide equivalent filtering or mechanical benefits.