CN6

CN6 Series Aluminum Electrolytic Capacitors: Reliable Energy Solutions for Industrial Applications

The CN6 series aluminum electrolytic capacitors are innovative electronic components designed for industrial drives, inverters, and other demanding applications. These leaded aluminum electrolytic capacitors combine miniaturization, extended lifespan, and superior low-temperature performance, exhibiting excellent performance over a wide temperature range of -40°C to +85°C, meeting the stringent reliability, stability, and durability requirements of modern industry for electronic components.

As a core component of power electronic systems, the CN6 series capacitors utilize advanced materials technology and manufacturing processes to achieve excellent electrical performance and a lifespan of up to 6000 hours while maintaining a compact form factor. The products strictly adhere to the RoHS environmental directive, reflecting the company's commitment to environmental protection and social responsibility.

Key Technical Features

Excellent Temperature Adaptability

The most significant feature of the CN6 series capacitors is their outstanding low-temperature performance. Under extreme environments, this product maintains stable capacitance characteristics: the ratio of capacitance at -25℃ to that at +20℃ is ≥0.8, and even at extremely low temperatures of -40℃, the capacitance remains above 65% of its normal temperature value. This characteristic makes it particularly suitable for cold regions or industrial environments with drastic temperature variations, such as outdoor power equipment and wind power converters.

The impedance temperature characteristics are equally impressive: the ratio of impedance at -25℃ to that at +20℃ is ≤5, and the ratio at -40℃ is ≤8. This small change in impedance at low temperatures ensures system stability during startup in cold environments, effectively preventing system failures caused by capacitor performance degradation.

Optimized Electrical Parameters

The CN6 series achieves industry-leading electrical performance. Its leakage current is extremely low; tested for 5 minutes at 20℃, the leakage current is less than 0.94mA or 3CV, significantly reducing system standby power consumption. The loss tangent (DF) does not exceed 0.15 at 20℃ and 120Hz, indicating low energy loss and high efficiency.

The product voltage range covers 350V to 500V DC, and capacitance values ​​range from 47μF to 1000μF, providing design engineers with a wide range of choices. Different sizes (diameter from 22mm to 35mm, length from 25mm to 80mm) meet various space layout requirements.

Long-lasting and durable design

CN6 series capacitors undergo rigorous life cycle testing. After 6000 hours of continuous operation at 85°C with rated ripple current and voltage, the capacitance change rate does not exceed ±20% of the initial value, the loss tangent does not exceed 200% of the initial specification value, and the leakage current remains within the initial specification value. This superior durability reduces equipment maintenance frequency and lowers total life cycle costs.

Application areas explained

Industrial drives and automation systems

In the industrial drive field, CN6 series capacitors play a key role. Their low inductance and low loss characteristics are particularly suitable for applications requiring high-frequency switching, such as frequency converters and servo drives. The stable performance of the capacitors ensures the accuracy of motor control and improves production efficiency. In automated production lines and machining equipment, CN6 capacitors help reduce the impact of voltage fluctuations on precision control systems.

New Energy and Power Conversion

In new energy fields such as photovoltaic inverters and wind power converters, the CN6 series performs exceptionally well. Its wide temperature range adapts to various outdoor environments, and its long lifespan reduces maintenance needs. The capacitor's excellent ripple current withstand capability (with corresponding correction coefficients for frequency and temperature variations) ensures energy conversion efficiency, contributing to improved overall system power generation efficiency.

Power Quality Improvement

In UPS systems and power stabilization equipment, CN6 capacitors are used for filtering and energy buffering, effectively smoothing voltage waveforms and improving power quality. Their low impedance characteristics help suppress transient voltage fluctuations, protecting sensitive electronic equipment from grid interference.

Structural Design and Reliability Assurance

Rugged Physical Structure

The CN6 series features a pin-type design for secure installation and excellent vibration resistance, making it suitable for mobile devices or vibrating environments. The reliable connection between the capacitor and the PCB board reduces connection failures caused by mechanical stress. The insulating sleeve design ensures electrical insulation between the terminals and the snap ring, with an insulation resistance exceeding 100MΩ. It can withstand a withstand voltage test of 2000V AC for one minute.

Strict Quality Control

Each CN6 capacitor undergoes multiple tests and quality inspections, including high-temperature load testing, temperature cycling testing, and durability testing. Raw materials are carefully selected from high-quality suppliers, and the production process utilizes automated equipment to minimize the impact of human factors on product quality.

Environmental Adaptability

The product design considers various environmental factors, including temperature cycling and humidity resistance. After storage at 85℃ for 1000 hours, the capacitor still maintains excellent performance, with the capacitance change rate not exceeding ±15% of the initial value and the loss tangent not exceeding 150% of the initial specification value.

Technical Advantages Analysis

Ripple Current Handling Capability

The CN6 series capacitors adjust their ripple current handling capability according to frequency, featuring scientifically calculated correction factors: 0.8 at 50Hz, 1.0 at 120Hz, 1.2 at 500Hz, 1.25 at 1kHz, and up to 1.4 above 10kHz. Simultaneously, the temperature correction factor is 1.7 at 40℃, 1.4 at 60℃, and 1.0 at 85℃. This design allows engineers to accurately calculate the actual operating capacity of the capacitors under different application conditions.

Stable Electrical Performance

The capacitors utilize advanced electrolyte formulation and electrode foil treatment technology, ensuring minimal variation in electrical parameters throughout their lifespan. This stability is crucial for industrial applications requiring long-term reliable operation, reducing performance degradation due to component aging.

Space Efficiency

The CN6 series offers higher capacitance density within the same volume, helping engineers reduce product size and meet the miniaturization trend of modern electronic devices. Multiple size options provide flexible choices for designs with different space constraints.

Application Design Guidelines

Selection Considerations

When selecting CN6 series capacitors, engineers need to comprehensively consider factors such as operating voltage, ripple current, ambient temperature, and space constraints. Higher voltage rating capacitors are generally larger but offer better safety margins; the choice of capacitance value needs to balance filtering effect, size, and cost.

Installation and Layout Recommendations

During PCB layout, the distance between capacitors and heat-generating components should be minimized to avoid localized high temperatures affecting lifespan. Adequate ventilation space is recommended to promote heat dissipation. Pay attention to polarity during installation to avoid damage caused by reverse connection.

Thermal Management Strategy

Although the CN6 series has good temperature characteristics, good thermal management can still significantly extend its lifespan. It is recommended to add heat dissipation measures, such as heat sinks or forced air cooling, in high-temperature environments or high-ripple current applications.

Market Competitiveness and Value Proposition

The CN6 series aluminum electrolytic capacitors are highly competitive in the industrial electronics market due to their comprehensive performance advantages. Compared to traditional products, their improvements in low-temperature performance, lifespan, and reliability create significant value for customers. Reduced equipment downtime and maintenance costs result in a significant reduction in the total cost of ownership over the entire lifespan. Conclusion

The CN6 series aluminum electrolytic capacitors represent the high standards of modern industrial electronics for key components—achieving high performance, high reliability, and long lifespan within a compact space. Whether in harsh industrial environments or energy systems with extremely high stability requirements, the CN6 provides excellent solutions. With the deepening of Industry 4.0 and the new energy revolution, these high-performance electronic components will play a crucial role in more fields, providing a solid foundation for technological innovation and industrial upgrading.

As the "energy guardians" of electronic systems, the CN6 series capacitors will continue to help customers create more reliable, efficient, and competitive products, jointly driving industrial progress and technological innovation.