1812J0500274MJTE03

Overview

The Knowles Syfer 1812J0500274MJTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 270 nF with a tolerance of ±20% and a DC voltage rating of 50 VDC. The component utilizes X7R dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it incorporates a nickel barrier electrode structure terminated with 100% tin plating. This specific variant is identified as an X2Y capacitor, integrating internal shielding characteristics within the MLCC architecture.

Feature Summary

• X2Y integrated circuit topology providing common-mode noise suppression
• Nickel barrier electrode construction for enhanced reliability
• 100% tin terminal plating compatible with standard soldering processes

Applications

• High-frequency noise filtering in sensitive electronic circuits
• Common-mode interference suppression in data lines
• Power supply decoupling requiring compact footprint solutions

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination and packaging specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference the datasheet for specific reflow soldering profiles and moisture sensitivity level classifications to prevent handling damage during assembly.

Selection Notes

Select this component when space constraints require a compact solution for noise filtering. The X2Y configuration offers superior common-mode rejection compared to discrete components. Ensure the 50V rating aligns with circuit peak voltages. Consider the ±20% tolerance for applications where precise capacitance values are not critical but noise attenuation is required.

Part Context

This component belongs to the Knowles Syfer 1812J series of general-purpose and high-reliability MLCCs. The series is characterized by robust construction suitable for industrial and commercial electronics. The specific model integrates X2Y technology, distinguishing it from standard single-capacitor MLCCs by providing three-terminal functionality within a two-terminal package form factor.

Replacement Considerations

Direct substitutes must match the 1812 package size, 50V rating, 270nF capacitance, and X2Y topology. Verify that alternative components maintain the same nickel barrier electrode structure and terminal plating requirements to ensure compatibility with existing manufacturing processes.