1812Y5000392MJTE03

Overview

The Knowles Syfer 1812Y5000392MJTE03 is a feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 3900 pF with a voltage rating of 500 VDC and a tolerance of ±20%. The component utilizes C0G (NP0) dielectric material, ensuring stable performance across an operating temperature range from -55°C to +125°C. Housed in a standard 1812 surface-mount package measuring 4.5 mm by 3.2 mm, it integrates capacitive elements within the structure to maintain capacitance stability over temperature variations while providing superior EMI filtering compared to discrete components.

Feature Summary

• Integrates capacitors to maintain stable capacitance over temperature variations
• Improves high-frequency noise suppression compared to conventional discrete capacitors
• Designed as a feed-through filter for effective EMI suppression

Applications

• High-frequency noise suppression circuits
• EMI suppression filters
• Boardflex sensitive applications requiring integrated filtering

Procurement Notes

Verify the specific suffix 'MJTE03' against official Knowles Syfer documentation to confirm the exact termination style and packaging configuration. Ensure the application environment supports the specified 500 VDC rating and that the 1812 footprint matches the PCB layout requirements. Cross-reference the datasheet for any specific handling instructions related to its feed-through architecture.

Selection Notes

Select this component when integrated EMI filtering is required without increasing the component count associated with discrete solutions. The C0G dielectric ensures minimal capacitance drift with temperature changes, making it suitable for precision analog or RF applications. Confirm that the 3900 pF value aligns with the target frequency response needs for the specific noise spectrum being addressed.

Part Context

This part belongs to the Knowles Syfer 1812Y series of high-reliability multilayer ceramic capacitors. The series is characterized by application-specific designs, including feed-through configurations that combine filtering and capacitance functions. These components are engineered for demanding environments where space constraints and signal integrity are critical priorities.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific feed-through variant are not available in the provided source data. Verify compatibility with alternative models only through direct electrical parameter comparison and mechanical footprint validation using official manufacturer cross-reference tools.