1812Y5000332MXTE03

Overview

The Knowles Syfer 1812Y5000332MXTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 3300 pF with a tolerance of ±20% and utilizes X7R dielectric material. The component is rated for a DC voltage of 500V and operates within a temperature range of -55°C to +125°C. Housed in an 1812 (4532 metric) package, it incorporates FlexiCap technology with flexible terminals and a nickel barrier to enhance mechanical robustness against board stress.

Feature Summary

• FlexiCap technology with flexible soft terminations to reduce stress on the PCB
• Nickel barrier construction for enhanced reliability and corrosion resistance
• X7R dielectric providing stable capacitance characteristics over temperature

Applications

• High-voltage general-purpose circuit filtering
• Automotive electronics requiring AEC-Q200 compliance
• Industrial equipment power supply decoupling

Procurement Notes

Verify the specific suffix 'E03' confirms the inclusion of the nickel barrier and FlexiCap termination structure as distinct from standard variants. Ensure the ordering part number matches the exact 3300 pF value and 500V rating required by the design specifications. Confirm RoHS compliance status through official manufacturer documentation prior to procurement.

Selection Notes

Select this component when high voltage isolation is required alongside improved mechanical durability. The FlexiCap feature addresses reliability concerns in environments prone to thermal cycling or mechanical vibration. The X7R dielectric offers a balance of capacitance density and stability suitable for general coupling and bypassing tasks where tight tolerance is not critical.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, which specializes in MLCCs with compliant terminations. The 1812Y series typically denotes high-voltage capabilities up to 500V. The specific model integrates a nickel barrier layer between the electrode and termination, a key differentiator for harsh environment applications compared to standard silver-based terminations.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 500V rating, 3300 pF value, and X7R dielectric. Verify if the replacement also includes FlexiCap and nickel barrier features if mechanical reliability is a constraint. Generic X7R capacitors without these specific termination technologies may not provide equivalent performance under stress.