1812Y5000472MSTE03

Overview

The Knowles Syfer 1812Y5000472MSTE03 is a high-reliability multilayer ceramic capacitor (MLCC) designed for surface-mount technology. It features an X7R dielectric material providing stable capacitance characteristics across a wide temperature range. The component operates at a rated DC voltage of 500V and offers a nominal capacitance of 4.7 nF with a tolerance of ±20%. Housed in a standard 1812 (4532 metric) package, it incorporates FlexiCap flexible termination technology to enhance mechanical durability. This part is AEC-Q200 qualified, ensuring suitability for automotive applications requiring robust performance under varying environmental conditions.

Feature Summary

• FlexiCap flexible termination technology reduces stress on the ceramic body during board flexing
• AEC-Q200 qualification ensures reliability for demanding automotive electronic environments
• X7R dielectric provides consistent capacitance stability over the specified operating temperature range

Applications

• Automotive electronics systems requiring AEC-Q200 compliance
• High-voltage circuit filtering and decoupling
• Applications subject to mechanical board flexing or vibration

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm terminal configuration and barrier layer specifications. Ensure compatibility with automated pick-and-place equipment regarding the reel packaging format. Confirm that the 500V rating and 4.7nF capacitance align with the target circuit design requirements before finalizing procurement orders.

Selection Notes

Select this component when high voltage isolation and mechanical resilience are critical. The 1812 package size balances capacitance density with physical footprint constraints. Consider the X7R temperature coefficient for circuits where capacitance drift must be minimized within the industrial temperature range. Verify that the flexible termination meets the mechanical stress profiles of the intended PCB assembly process.

Part Context

This capacitor belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability components for harsh environments. The 1812Y prefix indicates the 1812 case size and general product line classification. As part of the broader MLCC portfolio, it addresses the need for durable capacitors in automotive and industrial sectors where standard terminations might fail due to thermal cycling or mechanical strain.

Replacement Considerations

Consult the official Knowles Syfer replacement guide for direct equivalents. Verify that any substitute maintains the 1812 footprint, 500V rating, and FlexiCap termination style. Cross-reference AEC-Q200 certification status if the application mandates automotive-grade qualification.