1812J0500104MJTE03

Overview

The Knowles Syfer 1812J0500104MJTE03 is a feed-through capacitor designed for surface-mount technology. It features a capacitance of 0.1 µF with a voltage rating of 50 VDC and a tolerance of ±20%. The component utilizes an X7R dielectric material and operates within a temperature range of -55°C to +125°C. Its physical dimensions conform to the 1812 (4532 metric) package, measuring 4.5 mm in length, 3.2 mm in width, and 2.5 mm in height. This device integrates filtering capabilities directly into the circuit layout.

Feature Summary

• Integrates feed-through filtering functionality within a standard surface-mount footprint
• Utilizes X7R ceramic dielectric for stable performance across operating temperatures
• Designed for high-frequency noise suppression in compact electronic assemblies

Applications

• High-frequency noise suppression in power supply lines
• Signal integrity protection in communication interfaces
• Electromagnetic interference filtering in automotive electronics

Procurement Notes

Verify the specific suffix 'E03' against official manufacturer documentation to confirm terminal configuration and termination plating specifications. Ensure compatibility with automated pick-and-place equipment regarding the 1812 package dimensions. Cross-reference the X7R dielectric characteristics with application thermal requirements to validate long-term reliability under operational stress conditions.

Selection Notes

Select this component when space-constrained designs require integrated filtering without additional discrete components. The 1812 package allows for direct replacement of through-hole feed-through capacitors in modern surface-mount layouts. Evaluate the 50V rating against peak transient voltages to ensure adequate margin. Confirm that the X7R temperature coefficient meets the stability requirements of the target frequency band.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which combines decoupling and filtering functions. Unlike standard MLCCs, these components are engineered to handle current while providing attenuation. The 1812 form factor bridges the gap between small signal filters and larger power handling devices, offering a balanced solution for dense PCB architectures requiring effective EMI management.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.