0805Y0250183MXTE01

Overview

The Knowles Syfer 0805Y0250183MXTE01 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 0.018 µF with a voltage rating of 25 VDC and a tolerance of ±20%. The component utilizes an X7R dielectric material, ensuring stable performance across a temperature range of -55°C to +125°C. Housed in an 0805 (2012 Metric) package, it integrates a built-in 300 mA fuse element within the central conductor structure. This design provides simultaneous filtering and overcurrent protection in a compact form factor suitable for dense PCB layouts.

Feature Summary

• Integrated feed-through architecture combining capacitive filtering with a built-in current-limiting fuse element for enhanced circuit protection.
• X7R ceramic dielectric construction providing reliable capacitance stability across wide industrial operating temperature ranges.
• Compact 0805 surface-mount footprint optimized for high-density board designs requiring combined EMI suppression and overcurrent safety.

Applications

• High-speed data line protection in portable electronics
• EMI/RFI suppression on power input traces
• Signal conditioning in automotive infotainment systems

Procurement Notes

Verify the specific suffix 'E01' against official datasheets to confirm terminal configuration and packaging details. Ensure application requirements align with the 300 mA internal fuse rating to prevent unintended circuit interruption during normal operation or transient surges.

Selection Notes

Select this component when space constraints preclude discrete filter and fuse combinations. Confirm that the 25V DC rating exceeds peak circuit voltages. Evaluate thermal management needs as the integrated fuse may generate heat during fault conditions, potentially affecting nearby sensitive components.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which merges passive filtering with protective fusing. Unlike standard MLCCs, these devices utilize a unique central conductor design to achieve low impedance at high frequencies while maintaining robust overcurrent capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical ratings before considering alternative manufacturers.

FAQ

What is the function of the central conductor in this component?

The central conductor serves a dual purpose: it acts as the electrical path for the signal or power line and contains an integrated fuse element that limits current to 300 mA during fault conditions.

How does the X7R dielectric affect performance?

The X7R dielectric offers a balance of high volumetric efficiency and moderate temperature stability, allowing the capacitor to maintain its rated capacitance within specified limits across the -55°C to +125°C operating range.