0805Y0500273MXTE01

Overview

The Knowles Syfer 0805Y0500273MXTE01 is a feed-through multilayer ceramic capacitor with a capacitance of 0.027 µF and a DC voltage rating of 50 VDC. It utilizes X7R dielectric material and offers a tolerance of ±20%. Designed for the 0805 (2012 metric) package, it features flexible end terminations and a nickel barrier. The component supports a maximum operating temperature of +125°C and a minimum of -55°C.

Feature Summary

• Integrated feed-through architecture providing inherent electromagnetic interference filtering capabilities within the capacitor structure.
• Flexible soft end terminations designed to enhance mechanical reliability and resistance to stress-induced cracking during thermal cycling.
• Nickel barrier layer incorporated between the termination and the ceramic body to prevent electrode migration and ensure long-term stability.

Applications

• High-frequency signal line filtering in compact electronic modules
• Power supply decoupling where combined energy storage and noise suppression are required
• Automotive electronics systems requiring robust EMI mitigation

Procurement Notes

Verify that the specific MXTE01 suffix corresponds to the intended flexible termination and nickel barrier configuration. Confirm that the PCB layout accommodates the three-pad footprint required for feed-through components rather than standard two-terminal SMT pads. Ensure design compatibility with the specified current handling and thermal limits.

Selection Notes

Select this component when integrated EMI filtering is necessary without adding discrete inductors or ferrite beads. The feed-through design reduces parasitic inductance compared to standard MLCCs. Consider the physical size constraints of the 0805 package and verify that the circuit environment does not exceed the 50V DC rating or the maximum operating temperature of 125°C.

Part Context

This part belongs to the Knowles Syfer Y-series, which specializes in feed-through capacitors. Unlike standard MLCCs, these components integrate a conductive center pin through the dielectric, allowing signals to pass while shunting high-frequency noise to ground via the outer electrodes. This topology is distinct from general-purpose capacitors used solely for charge storage.

Replacement Considerations

Direct substitutes must match the 0.027 µF value, 50V rating, and feed-through topology. Standard 0805 MLCCs cannot replace this function due to the lack of integrated filtering. Verify availability of equivalent parts from other manufacturers offering similar feed-through architectures with compatible termination styles.