1812J5000183MJTE03

Overview

The Knowles Syfer 1812J5000183MJTE03 is a feed-through multilayer ceramic capacitor designed for surface-mount applications. It features a capacitance of 0.018 µF and a DC voltage rating of 500 VDC. The component operates within a temperature range of -55°C to +125°C and utilizes an X7R dielectric material. Housed in an 1812 (4532 metric) package, it provides high-frequency noise suppression with a rated current capacity of 50 mA.

Feature Summary

• Integrated feed-through architecture for effective electromagnetic interference filtering
• High-voltage tolerance suitable for demanding power supply environments
• Surface-mount design compatible with automated assembly processes

Applications

• Power supply input/output filtering
• High-frequency noise suppression circuits
• Electromagnetic interference mitigation in compact electronics

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to ensure correct pin configuration and termination specifications. Confirm that the selected variant matches the required current handling capabilities for the target circuit. Cross-reference the datasheet for precise mechanical dimensions to validate PCB footprint compatibility before procurement.

Selection Notes

Select this component when integrated EMI filtering is required without additional discrete inductors. Ensure the operating voltage remains below the 500 VDC rating under all transient conditions. Verify that the 50 mA current limit aligns with the circuit's maximum load requirements to prevent thermal degradation or failure during operation.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which combines MLCC technology with through-hole-like performance in a surface-mount form factor. These components are engineered for high-reliability applications requiring robust noise attenuation in space-constrained designs.

Replacement Considerations

Consult official substitution guides for equivalent feed-through capacitors with matching 500 VDC ratings and 0.018 µF capacitance. Verify that alternative parts support the same 50 mA current rating and 1812 package dimensions to maintain board layout integrity.