1206Y0500124MJTE03

Overview

The Knowles Syfer 1206Y0500124MJTE03 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 0.12 µF with a ±20% tolerance and a rated DC voltage of 50V. The component utilizes an X7R dielectric material, ensuring stability across an operating temperature range of -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it incorporates FlexiCap technology with flexible terminals to enhance mechanical reliability under board flex conditions.

Feature Summary

• Integrated feed-through architecture providing effective EMI filtering within a compact footprint
• Flexible terminal construction engineered to mitigate stress during PCB bending or warping
• X7R ceramic dielectric offering consistent electrical performance across wide thermal variations

Applications

• High-reliability automotive electronics requiring robust EMI suppression
• Board-flex sensitive circuits where mechanical integrity is critical
• General-purpose signal line filtering in industrial control systems

Procurement Notes

Verify the specific suffix configuration against official Knowles Syfer documentation to confirm terminal type and barrier layer specifications. Ensure that the selected variant aligns with the required current rating and impedance characteristics for the target application circuit. Cross-reference the manufacturer's latest datasheet to validate compliance with RoHS3 standards and AEC-Q200 requirements if applicable to the deployment environment.

Selection Notes

Select this component when a combined filtering and mechanical resilience solution is required for 1206 footprint constraints. The integrated feed-through design eliminates the need for separate filter components, simplifying layout. Consider the 50V rating and 0.12 µF value for low-voltage signal lines. The FlexiCap feature makes it suitable for applications subject to mechanical vibration or substrate movement.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, which specializes in multilayer ceramic capacitors with enhanced mechanical durability. The 1206Y prefix indicates the 1206 case size, while the internal coding specifies the electrical parameters. This series is widely recognized for its ability to withstand board flexing without cracking, addressing common failure modes in rigid MLCCs used in dynamic environments.

Replacement Considerations

Direct substitutes must match the 0.12 µF capacitance, 50V rating, and feed-through topology. Verify that alternative parts also offer flexible terminals if board flex resistance is required. Standard MLCCs lacking feed-through structures will not provide equivalent EMI attenuation.