1812Y5000333MSTE03

Overview

The Knowles Syfer 1812Y5000333MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) featuring an X7R dielectric and a capacitance of 0.033 µF with a ±20% tolerance. It operates at a DC voltage rating of 500 VDC within a temperature range of -55°C to +125°C. The component utilizes the FlexiCap technology, which incorporates flexible terminations to enhance mechanical reliability under stress. It is packaged in a standard 1812 (4532 metric) case size.

Feature Summary

• FlexiCap technology provides flexible terminations for improved resistance to mechanical stress and cracking.
• X2Y architecture integrates three terminals into a single package to reduce parasitic inductance.
• High-voltage capability rated at 500 VDC for demanding power applications.

Applications

• Automotive electronics requiring AEC-Q200 compliance
• Power supply input/output filtering
• EMI suppression circuits

Procurement Notes

Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of the nickel barrier and X2Y configuration. Ensure compatibility with PCB footprint requirements for this specific terminal arrangement. Confirm RoHS compliance status through current manufacturer documentation before integration.

Selection Notes

Select this component when high voltage isolation and low parasitic inductance are critical. The FlexiCap feature is essential for applications subject to board flexing or thermal cycling. Compare electrical ratings against circuit requirements to ensure the 500VDC rating provides adequate margin.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, designed for robust performance in harsh environments. The 1812Y series specifically targets automotive and industrial sectors where reliability under mechanical stress is paramount. The X2Y variant offers superior noise suppression compared to standard MLCCs.

Replacement Considerations

Direct substitutes must match the 1812 case size, 500VDC rating, 0.033µF capacitance, and X2Y terminal configuration. Verify that alternative components also feature flexible terminations if mechanical durability is required.

FAQ

What is the significance of the X2Y designation?

X2Y indicates a unique three-terminal structure that combines two capacitors and one inductor in one package, significantly reducing parasitic inductance for better EMI suppression.

Does this component meet automotive standards?

Yes, the MSTE03 suffix typically denotes AEC-Q200 qualification, making it suitable for automotive electronic applications.