1812J5000332MJTE03

Overview

The Knowles Syfer 1812J5000332MJTE03 is a feed-through multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features a capacitance of 3300 pF with a DC voltage rating of 500 VDC. The component utilizes X7R dielectric material and maintains a tolerance of ±20%. Housed in an 1812 (4532 metric) package, it operates within a temperature range of -55°C to +125°C. This device integrates a built-in current limit of 50 mA, providing inherent protection against short circuits while delivering high-frequency noise suppression capabilities.

Feature Summary

• Integrates a built-in 50 mA current limiting feature for short-circuit protection
• Provides effective high-frequency noise suppression through feed-through architecture
• Utilizes X7R dielectric for stable performance across the operating temperature range

Applications

• High-frequency noise filtering in sensitive electronic circuits
• Power supply input stages requiring integrated surge protection
• Automotive electronics systems demanding robust EMI/RFI mitigation

Procurement Notes

Verify the specific suffix 'E03' against official manufacturer documentation to confirm terminal configuration and compliance status. Ensure design compatibility with the 50 mA current limit specification for the target application circuit. Cross-reference the 1812 footprint dimensions with PCB layout requirements prior to procurement.

Selection Notes

Select this component when simultaneous noise filtration and overcurrent protection are required in a single surface-mount package. The 500V rating suits applications with significant voltage transients. Consider the X7R dielectric characteristics for stability needs. Evaluate the physical size constraints against the available board space for the 1812 form factor.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which combines MLCC technology with internal fuse-like elements. These components are engineered to replace traditional discrete filter and fuse combinations, simplifying assembly and reducing board space consumption in high-reliability environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.