1812J2000223MJTE03

Overview

The Knowles Syfer 1812J2000223MJTE03 is a feed-through multilayer ceramic capacitor designed for surface-mount technology. It features a capacitance of 0.022 µF with a voltage rating of 200 VDC and a tolerance of ±20%. The component utilizes an X7R dielectric material, ensuring stability across a temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it integrates a built-in 50 mA fuse element for overcurrent protection. This configuration combines high-frequency filtering capabilities with circuit safety in a compact form factor.

Feature Summary

• Integrates a 50 mA fuse element within the capacitor structure for simultaneous filtering and overcurrent protection
• Utilizes X7R dielectric material to maintain capacitance stability across wide industrial temperature ranges
• Designed as a surface-mount device in a compact 1812 footprint for automated assembly

Applications

• High-frequency noise suppression in power supply input stages
• Circuit protection in automotive electronics requiring combined filtering and fusing
• Signal conditioning in telecommunications equipment

Procurement Notes

Verify the specific suffix MJTE03 against official datasheets to confirm the integrated fuse current rating and termination specifications. Ensure compatibility with reflow soldering profiles recommended by the manufacturer. Confirm RoHS compliance status through current environmental declarations before integration into regulated assemblies.

Selection Notes

Select this component when design requirements demand both EMI/RFI attenuation and inherent overcurrent protection within a single surface-mount footprint. The 200V rating and 0.022µF value suit applications needing moderate energy storage with rapid transient response. Evaluate thermal management needs due to the internal fuse element's behavior during fault conditions.

Part Context

This part belongs to the Knowles Syfer J-series feed-through capacitors, which merge MLCC filtering with fuse functionality. Unlike standard capacitors, these components provide dual protection mechanisms. The 1812 size allows for space-constrained designs while maintaining robust electrical performance in demanding electronic environments.

FAQ

What is the function of the 'J' designation in the model number?

The 'J' indicates that the component is a feed-through capacitor with an integrated fuse element, providing both filtering and overcurrent protection.

What is the maximum continuous current rating for this component?

The component includes a 50 mA fuse element, limiting the maximum continuous current flow through the device.