1812Y1000393MSTE03

Overview

The Knowles Syfer 1812Y1000393MSTE03 is a Surface Mount Multilayer Ceramic Capacitor (MLCC) designed for high-reliability applications. It features an 1812 (4532 metric) case size with a rated DC voltage of 100V and a capacitance value of 39,000 pF (39 nF). The component utilizes X7R dielectric material, providing stable performance across a temperature range of -55°C to +125°C with a tolerance of ±20%. This part is AEC-Q200 qualified and incorporates FlexiCap technology with a nickel barrier electrode structure.

Feature Summary

• Incorporates FlexiCap technology to enhance mechanical robustness against board flexing and thermal stress.

Applications

• Automotive electronics systems requiring AEC-Q200 qualification

Procurement Notes

Verify the specific suffix MSTE03 to confirm the inclusion of FlexiCap technology and nickel barrier electrodes, as these attributes define the component's mechanical reliability profile. Ensure compatibility with automated pick-and-place equipment by confirming reel packaging specifications. Cross-reference the AEC-Q200 certification status if automotive compliance is mandatory for the target assembly.

Selection Notes

Select this component when high mechanical durability is required in addition to standard X7R electrical characteristics. The 1812 package offers higher capacitance density than smaller footprints while maintaining compatibility with standard surface mount processes. Verify that the 100V rating meets the circuit's maximum operating voltage requirements under all thermal conditions.

Part Context

This capacitor belongs to the Knowles Syfer Y-series, which specializes in high-capacitance MLCCs utilizing flexible electrode technologies. The series is engineered to address failure modes associated with mechanical stress in rigid ceramic structures. The 1812 form factor represents a balance between physical footprint constraints and energy storage capacity for industrial and automotive power management circuits.

Replacement Considerations

Direct substitutes must match the 1812 case size, 100V rating, 39nF capacitance, X7R dielectric, and AEC-Q200 qualification. Verify that alternative components also feature FlexiCap or equivalent mechanical reinforcement technologies to maintain system reliability standards.