1206J1000822MJTE03

Overview

The Knowles Syfer 1206J1000822MJTE03 is a Class 2 multilayer ceramic capacitor (MLCC) designed for surface mount applications. It features an X7R dielectric material providing stable capacitance characteristics across a wide temperature range from -55°C to +125°C. The component offers a nominal capacitance of 8.2 nF with a tolerance of ±20% and a DC voltage rating of 100 VDC. Housed in a standard 1206 (3216 metric) package, it utilizes a nickel barrier electrode structure terminated with 100% tin. This specific variant incorporates an X2Y architecture, integrating three terminals within the single package footprint to enhance circuit performance.

Feature Summary

• X2Y three-terminal architecture integrated into a standard two-terminal footprint
• Nickel barrier electrode construction with 100% tin terminations
• Class 2 X7R dielectric for high volumetric efficiency

Applications

• High-frequency noise suppression in sensitive signal lines
• Common-mode interference filtering in data transmission circuits
• Power supply decoupling requiring compact form factors

Procurement Notes

Verify the part number suffix carefully, as the E03 designation indicates the specific X2Y configuration and termination style. Confirm that the design accommodates the unique three-terminal layout despite the standard 1206 footprint dimensions. Ensure compatibility with reflow soldering profiles suitable for nickel barrier electrodes. Cross-reference the manufacturer's latest datasheet to confirm current production status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when space constraints prevent the use of discrete common-mode chokes or multiple capacitors. The X2Y topology provides superior high-frequency attenuation compared to standard MLCCs due to reduced parasitic inductance. Consider the ±20% tolerance if precise capacitance values are not critical. Evaluate the 100V rating against peak transient voltages in the application environment to ensure adequate safety margins.

Part Context

This component belongs to the Knowles Syfer FlexiCap and specialized MLCC families, known for high reliability in automotive and industrial sectors. The 1206J series typically denotes standard termination styles, while the MJTE03 suffix specifies the X2Y function and nickel barrier construction. It serves as a compact alternative to traditional filter networks, consolidating filtering functions into a single passive device.

Replacement Considerations

Direct functional substitutes require matching the X2Y topology and 1206 footprint. Standard C0G or X7R MLCCs lack the three-terminal filtering capability. Verify pinout compatibility, as X2Y devices have specific terminal assignments for line, ground, and neutral connections that differ from conventional capacitors.