1206J0250393MJTE07

Overview

The Knowles Syfer 1206J0250393MJTE07 is a three-terminal multilayer ceramic capacitor (MLCC) designed for surface-mount technology. It features a capacitance of 39 nF with a tolerance of ±20% and operates at a DC voltage rating of 25 VDC. The component utilizes X7R dielectric material, ensuring stability across an operating temperature range from -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it incorporates a nickel barrier electrode structure with 100% tin terminations. This configuration provides effective electromagnetic interference (EMI) filtering capabilities within a compact form factor suitable for high-density circuit board layouts.

Feature Summary

• Three-terminal architecture providing inherent EMI filtering functionality
• Nickel barrier electrode construction with 100% tin terminations
• X7R dielectric offering stable performance across wide temperature ranges

Applications

• Electromagnetic interference suppression in sensitive signal lines
• Power supply input/output filtering for integrated circuits
• High-reliability electronic assemblies requiring robust noise attenuation

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination and barrier specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current availability as supply levels may fluctuate. Ensure storage conditions align with moisture sensitivity level requirements to maintain component integrity before reflow soldering processes.

Selection Notes

Select this component when dedicated EMI filtering is required without additional discrete components. The three-terminal design offers superior high-frequency noise attenuation compared to standard two-terminal capacitors. Consider the 1206 footprint constraints and verify that the 25V rating meets the circuit's maximum operating voltage. Evaluate thermal management needs given the X7R characteristics and specified temperature limits.

Part Context

This component belongs to the Knowles Syfer MLCC portfolio, specifically engineered for applications demanding reliable noise suppression. The 1206J series designation indicates a standard 1206 case size with specific internal construction optimized for durability. The MJTE07 suffix denotes the particular termination and barrier combination, distinguishing it from standard MLCCs by integrating filtering properties directly into the passive component structure.

Replacement Considerations

Direct substitutes must match the 39nF capacitance, 25V rating, X7R dielectric, and three-terminal EMI filter topology. Verify that alternative parts offer compatible nickel barrier and tin termination specifications to ensure consistent solderability and corrosion resistance. Footprint compatibility requires strict adherence to the 1206 external dimensions.