1812Y0500392MJTE03

Overview

The Knowles Syfer 1812Y0500392MJTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a 3900 pF capacitance with a ±5% tolerance, rated for 50 VDC. The component utilizes C0G (NP0) dielectric material to ensure stable performance across varying conditions. It is housed in an 1812 (4532 metric) package and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Utilizes C0G (NP0) dielectric for minimal capacitance variation over temperature and voltage.
• Features FlexiCap termination technology to enhance mechanical reliability against thermal cycling stress.
• Incorporates nickel barrier plating to prevent tin whisker growth and ensure solder joint integrity.

Applications

• High-frequency RF circuits requiring stable tuning characteristics.
• Precision timing and clock filtering networks.
• Harsh environment automotive electronics.
• Industrial control systems demanding long-term stability.

Procurement Notes

Verify the specific suffix 'JTE03' against official Knowles Syfer documentation to confirm terminal configuration and packaging details. Ensure compatibility with automated pick-and-place equipment regarding the 1812 footprint dimensions. Confirm RoHS compliance status through current manufacturer declarations prior to integration into regulated assemblies.

Selection Notes

Select this component when circuit design requires low loss and high Q-factor at radio frequencies. The C0G dielectric ensures negligible aging effects compared to X7R or Y5S types. Consider the FlexiCap termination if the application involves significant thermal expansion mismatch between the PCB and the component substrate.

Part Context

This part belongs to the Knowles Syfer Sy-Flex series, which specializes in flexible termination MLCCs. The series addresses common failure modes associated with rigid terminations in high-vibration or high-thermal-gradient environments. It complements standard general-purpose MLCCs by offering enhanced mechanical robustness without sacrificing electrical performance.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 3900 pF value, 50V rating, C0G dielectric, and FlexiCap termination style. Generic C0G MLCCs with standard Ni/Sn terminations may not provide equivalent mechanical reliability under thermal shock conditions.