1206Y0500393MXTE07

Overview

The Knowles Syfer 1206Y0500393MXTE07 is a multilayer ceramic capacitor (MLCC) designed as a three-terminal EMI filter in a 1206 surface-mount package. It features a capacitance of 39 nF with a tolerance of ±20% and utilizes X7R dielectric material. The component has a rated DC voltage of 50V and incorporates a nickel barrier with 100% tin terminations. It operates within a temperature range of -55°C to +125°C and is supplied in reel packaging.

Feature Summary

• Three-terminal architecture provides enhanced electromagnetic interference filtering performance compared to standard two-terminal capacitors.
• FlexiCap technology combined with a nickel barrier offers improved mechanical reliability and resistance to board flexing stresses.
• X7R dielectric ensures stable capacitance characteristics across the specified industrial operating temperature range.

Applications

• Electromagnetic interference suppression in high-density electronic circuits
• Power supply input and output filtering for sensitive digital logic
• Signal line protection in automotive and industrial control systems

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination and dielectric specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current availability constraints as distribution may vary by region. Ensure storage conditions adhere to moisture sensitivity level requirements before reflow soldering.

Selection Notes

Select this component when specific EMI attenuation is required in a compact 1206 footprint. The three-terminal design is necessary for superior high-frequency noise reduction compared to conventional MLCCs. Consider the 50V rating and X7R stability for general-purpose applications where cost-effective filtering is prioritized over ultra-high precision.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in robust ceramic capacitors for demanding environments. The 1206Y prefix indicates the 1206 case size and 50V voltage class. The XT suffix typically denotes specific termination or packaging variations within the product line.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 39nF capacitance, 50V rating, and three-terminal EMI filter structure. Verify that alternative components offer comparable FlexiCap mechanical flexibility and nickel barrier termination properties to maintain board reliability.