1206Y0500472MJTE07

Overview

The Knowles Syfer 1206Y0500472MJTE07 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a 1206 (3216 metric) case size with X7R dielectric material, providing a capacitance of 4700 pF (4.7 nF) and a DC voltage rating of 50 VDC. The component offers a tolerance of ±20% and utilizes flexible (soft) terminations to enhance mechanical durability. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Incorporates FlexiCap technology with flexible terminations to mitigate stress on board-flex sensitive substrates.
• Features a nickel barrier layer beneath the terminal plating to prevent tin whisker formation.
• Utilizes X7R dielectric characteristics to maintain stable capacitance across a wide operating temperature range.

Applications

• Board-flex sensitive electronic assemblies requiring enhanced mechanical reliability
• EMI filtering circuits utilizing 3-terminal configurations
• High-reliability general-purpose MLCC applications

Procurement Notes

Verify the specific suffix 'JTE07' against official datasheets to confirm the presence of the nickel barrier and flexible termination features. Ensure compatibility with automated pick-and-place equipment regarding the 1206 footprint dimensions. Confirm RoHS compliance status through current manufacturer documentation before integration into regulated products.

Selection Notes

Select this component when board flex resistance is critical due to its soft termination design. The X7R dielectric provides higher volumetric efficiency than C0G types but exhibits greater capacitance variation with voltage and temperature. Verify that the 50V rating and 4.7nF value meet circuit requirements, noting that X7R capacitors may show significant capacitance loss under applied DC bias.

Part Context

This part belongs to the Knowles Syfer high-reliability MLCC portfolio, specifically engineered for demanding environments. The 1206Y series denotes a standard 1206 footprint with specific internal construction optimized for reliability. The inclusion of the nickel barrier distinguishes it from standard MLCCs by addressing long-term stability concerns associated with pure tin terminations.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 50V rating, 4.7nF capacitance, and X7R dielectric. Crucially, replacements should also feature flexible terminations and nickel barriers if board-flex sensitivity or whisker prevention is required. Generic 1206 X7R capacitors without these specific termination structures are not functionally equivalent for sensitive applications.