1812J0500683MJTE03

Overview

The Knowles Syfer 1812J0500683MJTE03 is a multilayer ceramic capacitor (MLCC) in an 1812 (4532 metric) surface-mount package. It features a capacitance of 68 nF with a tolerance of ±20% and a DC voltage rating of 50 VDC. The component utilizes X7R (2R1) dielectric material, ensuring stable performance across a wide operating temperature range from -55°C to +125°C. It incorporates a nickel barrier electrode structure with 100% tin terminations for reliable soldering.

Feature Summary

• X2Y architecture providing integrated common-mode noise filtering capabilities
• Nickel barrier termination system compatible with standard reflow processes
• High-reliability construction suitable for demanding electronic environments

Applications

• Common-mode noise suppression in high-speed digital circuits
• Power supply input filtering for sensitive semiconductor devices
• Signal line protection in communication equipment

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination and dielectric specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check for any specific handling requirements related to the nickel barrier plating during assembly processes.

Selection Notes

Select this component when space-constrained designs require combined decoupling and EMI filtering functions. The 1812 footprint allows for higher current handling compared to smaller packages. Ensure the circuit operates within the specified voltage and temperature limits to maintain capacitance stability and device longevity.

Part Context

This component belongs to the Knowles Syfer X2Y family, which integrates three terminals into a single MLCC body. The design combines series and parallel capacitance paths to effectively attenuate electromagnetic interference. It serves as a compact alternative to discrete filter components in modern PCB layouts.

Replacement Considerations

Direct substitutes must match the X2Y topology and 1812 dimensions. Verify that alternative parts support the same 50V rating and 68nF capacitance with compatible termination materials for equivalent thermal cycling performance.