High Voltage Ceramic Capacitor[2]
Overview
The CL21B683KAANNNC is a multilayer ceramic capacitor (MLCC) designed for high-performance electronic applications. MLCCs like this are widely used due to their reliability, compact size, and ability to operate under a range of environmental conditions. The CL21B683KAANNNC model is particularly noted for its 68nF capacitance and X7R dielectric material, which ensures stable performance across a broad temperature range. This capacitor is commonly utilized in power supply circuits, signal filtering, and noise suppression in both industrial and consumer electronics. Its robust construction and compliance with industry standards make it a preferred choice for engineers and procurement specialists seeking dependable components.
Structure and Working Principle
The CL21B683KAANNNC consists of alternating layers of ceramic dielectric material and metal electrodes, which are sintered together to form a monolithic structure. The X7R dielectric offers a balance between high capacitance and thermal stability, making it suitable for applications where temperature fluctuations are a concern. When integrated into a circuit, the capacitor stores and releases electrical energy, smoothing out voltage fluctuations and filtering high-frequency noise. Its compact size (typically 0805 or similar package) allows for high-density placement on printed circuit boards (PCBs), optimizing space in modern electronic designs.
Key Features
The CL21B683KAANNNC stands out for its high capacitance (68nF) relative to its small physical size, a hallmark of MLCC technology. The X7R dielectric ensures that the capacitance remains stable (±15%) over a temperature range of -55°C to +125°C, making it versatile for various environments. Additional features include low equivalent series resistance (ESR) and excellent high-frequency performance, which are critical for applications like decoupling in digital circuits. The capacitor's robust construction also provides resistance to mechanical stress and vibration, enhancing its longevity in demanding conditions.
Application Areas
This capacitor is extensively used in consumer electronics, such as smartphones, laptops, and televisions, where space-saving and reliable performance are paramount. It is also employed in industrial equipment, automotive electronics, and telecommunications devices for filtering and energy storage. In power supply circuits, the CL21B683KAANNNC helps stabilize voltage levels, while in signal processing applications, it filters out unwanted noise. Its versatility and reliability make it a staple in both mass-produced and specialized electronic products.
Maintenance and Precautions
To ensure optimal performance, avoid subjecting the CL21B683KAANNNC to mechanical stress, such as bending or dropping, which can crack the ceramic layers. Excessive voltage beyond its rated capacity (typically 50V or 100V) should also be avoided to prevent failure. Storage conditions should be dry and free from high humidity to prevent moisture absorption, which can degrade performance. When soldering, follow recommended temperature profiles to prevent thermal shock, which can damage the internal structure of the capacitor.
B2B Procurement Guide
When procuring the CL21B683KAANNNC, verify the capacitance, voltage rating, and tolerance to ensure compatibility with your application. Bulk purchases often yield cost savings, but ensure suppliers adhere to quality standards like ISO 9001 or AEC-Q200 for automotive applications. Reliable suppliers should provide detailed datasheets and batch testing reports. Consider lead times and minimum order quantities (MOQs) to align with production schedules. For reference, prices typically range from $0.05 to $0.20 per unit, depending on order volume and supplier agreements.