1812J0500224MJTE03

Overview

The Knowles Syfer part number 1812J0500224MJTE03 is a multilayer ceramic capacitor (MLCC) designed for surface-mount technology. It features a capacitance of 220 nF with a tolerance of ±20%. The component is rated for a DC voltage of 50 V and utilizes an X7R dielectric material, ensuring stable performance across a wide temperature range from -55°C to +125°C. The physical dimensions conform to the standard 1812 package size (4532 metric), measuring 4.50 mm in length, 3.20 mm in width, and a maximum height of 2.50 mm. This specific variant incorporates a Nickel Barrier construction, which enhances reliability in environments susceptible to tin whisker growth or solder joint degradation. The device is RoHS compliant and meets AEC-Q200 qualification standards, making it suitable for automotive and high-reliability industrial applications requiring robust passive components.

Feature Summary

• Incorporates a nickel barrier electrode structure to improve long-term reliability and resistance to environmental stressors compared to standard tin terminations.
• Meets AEC-Q200 automotive qualification standards, ensuring durability and consistent performance under rigorous thermal and mechanical cycling conditions.
• Utilizes X7R dielectric characteristics to provide substantial capacitance stability over the full operating temperature range of -55°C to +125°C.

Applications

• Automotive electronics systems requiring AEC-Q200 qualified components
• High-reliability industrial circuit boards demanding robust surface-mount capacitors
• General-purpose power supply filtering and decoupling in harsh environments

Procurement Notes

Verify the specific suffix 'JTE03' against the official Knowles Syfer datasheet to confirm the presence of the nickel barrier and AEC-Q200 compliance. Ensure that the procurement channel provides original manufacturer documentation to validate authenticity. Check for any recent product change notices (PCNs) that might affect packaging or material composition. Confirm that the supplier can provide traceability records required for automotive or critical infrastructure projects. Always cross-reference the lot code with the manufacturer's quality certificates upon receipt.

Selection Notes

Select this component when a 220 nF capacitance at 50 V is required in an 1812 footprint with enhanced reliability features. The nickel barrier option is critical for applications where tin whisker mitigation is necessary. Consider the X7R dielectric if moderate temperature stability suffices, but note that capacitance may vary more than with C0G types. Evaluate the physical height constraint of 2.50 mm against board clearance requirements. Compare against standard terminations only if cost is the primary driver and environmental risks are low.

Part Context

This component belongs to the Knowles Syfer 1812J series of general-purpose MLCCs. The series is known for offering various termination options and dielectric materials within the standardized 1812 case size. The 'J' in the part number typically denotes the voltage rating class within the manufacturer's coding system, while the 'T' indicates tape and reel packaging. This specific model represents a balance between high capacitance density and automotive-grade reliability standards.

Replacement Considerations

Direct substitutes must match the 1812 package, 220 nF capacitance, 50 V rating, X7R dielectric, and nickel barrier termination. Verify AEC-Q200 compliance if the application mandates automotive qualification. Generic X7R 1812 capacitors without nickel barriers are not equivalent replacements due to reliability differences. Consult the manufacturer's substitution guide for approved alternate part numbers with identical electrical and mechanical specifications.