1812Y5000332MJTE03

Overview

The Knowles Syfer 1812Y5000332MJTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a 1812 case size with a capacitance of 3.3 nF and a DC voltage rating of 500 VDC. The component utilizes X7R dielectric material, providing a tolerance of ±20%. It incorporates FlexiCap technology with flexible terminals to enhance mechanical robustness against board flexing. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Integrates X2Y architecture for simultaneous common-mode and differential-mode noise suppression
• Features FlexiCap flexible terminations to withstand mechanical stress from board flexure
• Utilizes nickel barrier electrode structure for enhanced reliability

Applications

• Automotive electronics requiring AEC-Q200 compliance
• Circuits sensitive to electromagnetic interference (EMI)
• Power supply filtering in board-flex environments

Procurement Notes

Verify the complete part number including the suffix E03, as it indicates specific packaging or tape-and-reel configurations. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the X2Y topology, which differs functionally from standard two-terminal capacitors. Cross-reference terminal flexibility requirements with PCB assembly processes to prevent damage during mounting.

Selection Notes

Select this component when both high voltage handling and superior mechanical durability are required. The X2Y configuration offers superior noise attenuation compared to standard MLCCs in compact spaces. Consider the flexible termination feature if the application involves significant PCB warping or thermal cycling stress. Verify that the X7R dielectric characteristics align with the circuit's stability requirements under varying temperatures.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability capacitors for automotive and industrial sectors. The 1812Y series denotes a 500V rated product line within the 1812 metric footprint family. The Y designation typically indicates the voltage class, while the J suffix in similar models often denotes tolerance; here, the MJTE03 suffix defines the specific X2Y variant and packaging.

Replacement Considerations

Direct replacements must match the X2Y functionality and 1812 footprint. Standard two-terminal MLCCs cannot replicate the noise suppression capabilities. Verify pinout compatibility, as X2Y devices have three terminals arranged differently than conventional capacitors. Check if alternative suppliers offer equivalent FlexiCap technology for mechanical resilience.