1812Y0250125MXTE07

Overview

The Knowles Syfer 1812Y0250125MXTE07 is a multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features an X7R dielectric material with a capacitance of 1.2 µF and a DC voltage rating of 25 VDC. The component adheres to the 1812 (4532 metric) case size, measuring 4.5 mm in length, 3.2 mm in width, and 2.5 mm in height. It offers a tolerance of ±20% and operates within a temperature range of -55°C to +125°C. This part utilizes FlexiCap technology with flexible terminals and incorporates a nickel barrier structure.

Feature Summary

• Incorporates FlexiCap technology with flexible end terminations to enhance mechanical reliability against board stress.
• Features a nickel barrier electrode structure to improve resistance to tin whisker formation.
• Designed as a three-terminal EMI filter configuration for effective noise suppression.

Applications

• Electromagnetic interference (EMI) filtering in electronic circuits
• High-reliability surface mount assembly requiring mechanical flexibility
• General-purpose decoupling applications in low-voltage systems

Procurement Notes

Verify the specific suffix codes to confirm the presence of the nickel barrier and FlexiCap terminal specifications. Ensure the procurement documentation explicitly states the three-terminal EMI filter configuration. Confirm that the component meets the required RoHS compliance standards for your manufacturing process. Cross-reference the manufacturer's latest datasheet to validate the current production status and any potential obsolescence notices before finalizing orders.

Selection Notes

Select this component when a standard two-terminal MLCC requires enhanced mechanical durability due to flexural stress on the printed circuit board. The three-terminal architecture provides superior high-frequency noise attenuation compared to conventional designs. Consider the 1812 footprint constraints and the 25 VDC rating to ensure compatibility with the target circuit's voltage levels and physical space limitations.

Part Context

This component belongs to the Knowles Syfer portfolio of high-reliability multilayer ceramic capacitors. It is engineered specifically for applications demanding robust performance under mechanical strain. The integration of nickel barriers addresses long-term reliability concerns associated with tin plating. As a specialized EMI filter variant, it distinguishes itself from standard general-purpose capacitors through its unique internal electrode topology.

Replacement Considerations

Direct substitutes must match the 1812 case size, 1.2 µF capacitance, 25 VDC rating, and X7R dielectric. Verify that alternative parts also feature three-terminal EMI filter structures and flexible terminations if mechanical resilience is critical. Standard two-terminal replacements will not provide equivalent noise filtering or stress relief capabilities.