1812J0500334MJTE03

Overview

The Knowles Syfer 1812J0500334MJTE03 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a 0.33 µF capacitance with a 50 V DC rating and X7R dielectric. The component operates within a temperature range of -55°C to 125°C and utilizes a 1812 (4532 Metric) package with three PC pads. It includes an integrated 50 mA fuse element for circuit protection.

Feature Summary

• Integrates a built-in fuse element for overcurrent protection alongside capacitive filtering.
• Provides effective high-frequency noise attenuation in compact surface-mount configurations.
• Utilizes a three-pad footprint design to facilitate efficient PCB routing and thermal management.

Applications

• High-frequency noise suppression in sensitive electronic circuits
• Power line filtering where combined surge protection and decoupling are required
• Applications requiring compact, integrated EMI mitigation solutions

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to confirm the exact fuse current rating and termination material specifications. Ensure that the selected variant matches the required thermal and electrical characteristics for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when space constraints necessitate combining filtering and fusing functions into a single surface-mount device. Evaluate the 50 mA fuse threshold against expected transient currents to ensure adequate protection without nuisance tripping during normal operation or startup conditions.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor family, which merges ceramic capacitance with fusible links. These components address both electromagnetic interference and overcurrent risks in modern electronics, offering a consolidated solution compared to discrete filter and fuse arrangements.

Replacement Considerations

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