The 1812B472K202NT is a ceramic capacitor manufactured by Knowles Novacap. It is a surface-mount multilayer ceramic capacitor (MLCC) designed for a variety of applications where stable capacitance and small size are critical.

Applications:

• Decoupling: Providing local DC voltage stability in digital circuits and power supplies.
• Filtering: Smoothing voltage fluctuations in power lines and signal paths.
• Timing Circuits: Used in RC timing circuits for controlling frequency and pulse width.
• Bypass Applications: Routing high-frequency noise to ground.
• RF Applications: Suitable for high-frequency circuits due to its low ESR and ESL.

Features:

• High Capacitance Stability: Offers stable capacitance over a wide range of temperatures and voltages.
• Surface Mount Design: Facilitates automated assembly and soldering processes.
• Compact Size: 1812 case size allows for high-density mounting on PCBs.
• Low ESR/ESL: Minimizes energy losses and improves circuit performance.
• RoHS Compliant: Compliant with Restriction of Hazardous Substances directive.

Benefits:

• Improved Circuit Performance: Stable capacitance ensures reliable and predictable circuit operation.
• Reduced Board Space: Compact size enables smaller and more densely packed circuit designs.
• Lower Noise: Effective decoupling and bypassing reduces noise and interference in sensitive circuits.
• Long-Term Reliability: High-quality materials and construction ensure long operational life.
• Ease of Assembly: Surface mount design simplifies the assembly process and reduces manufacturing costs.

Technical Specifications:

The 1812B472K202NT has a capacitance value of 4700pF (4.7nF) with a tolerance of ±10%. It features a voltage rating of 200V. The temperature coefficient of capacitance (TCC) is typically X7R, meaning the capacitance varies by ±15% over the operating temperature range of -55°C to +125°C. The capacitor utilizes a standard 1812 case size (4.5mm x 3.2mm). It is designed for reflow soldering and is supplied in tape and reel packaging for automated assembly.