1812J0500123MJTE03

Overview

The Knowles Syfer 1812J0500123MJTE03 is a feed-through multilayer ceramic capacitor designed for surface-mount technology. It features a capacitance of 0.012 µF with a DC voltage rating of 50V and a current rating of 50 mA. The component utilizes a C0G/NP0 dielectric material, ensuring stable performance across a temperature range of -55°C to +125°C. Housed in an 1812 (4532 metric) package with three PC pads, it offers high-frequency noise suppression capabilities suitable for demanding electronic applications.

Feature Summary

• Integrated feed-through architecture providing effective electromagnetic interference filtering within a compact surface-mount footprint
• Utilizes C0G/NP0 dielectric material to maintain capacitance stability under varying thermal conditions
• Supports continuous current handling up to 50 mA for robust signal integrity protection

Applications

• High-frequency noise suppression in sensitive electronic circuits
• Electromagnetic interference filtering in communication systems
• Signal line protection in automotive electronics

Procurement Notes

Verify the specific terminal configuration and pad layout requirements against your PCB design before ordering. Confirm that the 50 mA current rating meets your circuit's operational demands. Ensure compatibility with standard reflow soldering profiles for 1812 package components. Check for any recent product change notifications from Knowles Syfer regarding material or manufacturing updates.

Selection Notes

Select this component when integrated EMI filtering is required without occupying additional board space for discrete filters. The C0G/NP0 dielectric ensures minimal capacitance drift, making it ideal for precision timing or RF applications. Consider the 1812 package dimensions for adequate clearance and thermal management. Evaluate the 50V rating against peak voltage transients in the target application.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which combines MLCC technology with through-hole current-carrying capabilities in a surface-mount form factor. These components are engineered for high-frequency applications where traditional capacitors may exhibit parasitic inductance issues. The 1812J series typically targets automotive and industrial sectors requiring reliable noise suppression.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific feed-through variant are not available in the provided documentation. Verify pinout and electrical specifications carefully if considering alternative manufacturers, as feed-through designs vary significantly in internal structure and current ratings.