1812Y1000184MSTE03

Overview

The Knowles Syfer 1812Y1000184MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 0.18 µF with a voltage rating of 100 VDC and a tolerance of ±20%. Utilizing X7R dielectric material, the component operates within a temperature range of -55°C to +125°C. The device employs FlexiCap technology with a nickel barrier and soft termination to enhance mechanical durability. Packaged in a standard 1812 (4532 metric) footprint, it is certified to AEC-Q200 standards for automotive use.

Feature Summary

• FlexiCap soft termination design reduces stress on pads during board flexing
• Nickel barrier construction provides enhanced reliability against cracking
• AEC-Q200 qualification ensures suitability for automotive electronic environments

Applications

• Automotive electronics requiring board-flex sensitivity mitigation
• High-reliability industrial circuits demanding robust MLCC performance
• Applications utilizing X2Y architecture for noise suppression

Procurement Notes

Verify the complete part number including suffixes to ensure correct termination and barrier specifications. Confirm AEC-Q200 certification status if automotive compliance is mandatory. Check datasheet for specific handling instructions regarding soft terminations to prevent mechanical damage during assembly. Ensure compatibility with reflow soldering profiles specified by the manufacturer.

Selection Notes

Select this component when board flex resistance is critical due to its flexible termination structure. The X7R dielectric offers stable capacitance over a wide temperature range suitable for general purpose filtering. Consider the 1812 package size for space-constrained designs requiring higher capacitance values. Verify that the 100V rating meets the circuit's maximum operating voltage requirements.

Part Context

This component belongs to the Knowles Syfer 1812Y series, which specializes in high-capacitance MLCCs with enhanced mechanical strength. The series utilizes proprietary FlexiCap technology to address common failure modes associated with rigid terminations in flexible substrates. It represents a solution for automotive and industrial sectors where reliability under mechanical stress is paramount.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 0.18 µF capacitance, 100V rating, and X7R dielectric. Verify that alternative components also feature soft terminations or equivalent board-flex protection mechanisms. Ensure any replacement maintains AEC-Q200 certification if used in automotive applications.