1812Y0500273MSTE03

Overview

The Knowles Syfer 1812Y0500273MSTE03 is a feed-through multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features an 1812 package size with a capacitance of 0.027 µF and a rated voltage of 50 VDC. The component supports a maximum current of 50 mA and utilizes X7R dielectric characteristics. It is certified to AEC-Q200 standards, indicating suitability for automotive applications. The device incorporates FlexiCap technology with a nickel barrier to enhance mechanical reliability under board flex conditions.

Feature Summary

• Integrated feed-through architecture providing high-frequency noise suppression within the capacitor structure.
• FlexiCap construction with nickel barrier electrodes to mitigate stress-induced cracking during PCB assembly and operation.
• AEC-Q200 qualification ensuring compliance with automotive electronic component reliability standards.

Applications

• Automotive electronics requiring robust EMI filtering in vibration-prone environments
• Power supply input stages for noise attenuation in vehicle control modules
• Applications involving significant PCB flex or mechanical stress

Procurement Notes

Verify the specific suffix MSTE03 against official datasheets to confirm the presence of the nickel barrier and FlexiCap termination structure. Ensure the selected variant matches the required AEC-Q200 certification level for your target application. Confirm that the 50 mA current rating aligns with your circuit design parameters before procurement.

Selection Notes

Select this component when both high-frequency filtering and mechanical durability are critical. The feed-through design offers superior performance compared to standard MLCCs in noisy environments. Consider the 1812 footprint constraints and ensure compatibility with existing PCB layouts. Verify that the 50 VDC rating provides sufficient margin for your operating voltage.

Part Context

This part belongs to the Knowles Syfer 1812Y series, which specializes in high-reliability capacitors for demanding environments. The series includes various configurations optimized for automotive and industrial sectors. The 1812Y0500273MSTE03 specifically addresses the need for combined electrical filtering and mechanical resilience in compact form factors.

Replacement Considerations

Direct substitutes must match the 1812 feed-through form factor, 0.027 µF capacitance, 50 V rating, and AEC-Q200 certification. Verify equivalent FlexiCap or similar flexible termination technology to maintain mechanical reliability. Standard MLCCs without feed-through capabilities are not suitable replacements due to differing filtering characteristics.