CW3S

CW3S Series Aluminum Electrolytic Capacitors: Compact Design Drives Innovation in Industrial Automation

With the rapid advancement of industrial automation technology, electronic equipment is continuously evolving towards higher efficiency and smaller size. YMIN's CW3S series aluminum electrolytic capacitors, with their perfect combination of ultra-small size and excellent performance, provide an ideal power management solution for industrial drive and servo systems, making them the preferred component for compact equipment designs.

Technological Innovations that Break Through Space Constraints

The CW3S series' most notable feature is its high performance within limited space. Its advanced snap-in design maintains structural stability while maximizing space utilization. Its operating temperature range of -40°C to +105°C ensures stable operation in harsh industrial environments, while its wide voltage rating of 350V to 500V DC provides flexible options for industrial equipment of varying power levels.

This series offers capacitance values ​​ranging from 47μF to 1000μF, with a capacitance tolerance strictly controlled within ±20% under test conditions of 20°C and 120Hz. The CW3S series boasts a service life of 3,000 hours at 105°C, fully meeting the reliability requirements of most industrial equipment while offering significant cost advantages.

Excellent Electrical Performance

The CW3S series demonstrates outstanding electrical performance, with leakage current less than 0.94mA or 3CV for 5 minutes at 20°C, demonstrating excellent insulation properties. More notably, its loss tangent (DF) at 20°C and 120Hz is no more than 0.15, exceeding industry standards and indicating lower energy loss and temperature rise in high-frequency operating environments.

In terms of temperature characteristics, the CW3S exhibits exceptional stability. The capacitance ratio at -25°C to +20°C is no less than 0.8, and even at extremely low temperatures of -40°C, the capacitance ratio remains above 0.65. This excellent temperature adaptability ensures reliable operation in highly variable environments, making it particularly suitable for outdoor industrial equipment applications.

Core Applications in Industrial Drive and Servo Systems

Precision Servo Control Systems

Modern servo drives often operate in extremely compact layouts. The CW3S's ultra-small size allows it to be easily embedded in space-constrained control boards, providing stable DC bus support for servo motors. Its low ESR helps reduce switching losses and improve overall system efficiency, while its excellent frequency characteristics (ripple current coefficient of 1.4 at frequencies above 10kHz) make it particularly suitable for high-frequency PWM drive servo systems.

Industrial Robot Applications

In industrial robot joint drives, CW3S capacitors perform a critical energy buffering function. Their compact size allows for high-density layout within limited joint space, facilitating the compact design of multi-axis robot systems. Their excellent vibration tolerance ensures reliable operation of the capacitors during robot motion, reducing the risk of vibration-induced failures.

CNC Machine Tools and Automation Equipment

In CNC system servo drive modules, the CW3S provides stable DC voltage support for the power modules. Its fast response helps suppress bus voltage fluctuations and improve machining accuracy. Especially in applications with frequent starts and stops, acceleration and deceleration, the product's durability ensures long-term operational reliability.

Structural Design and Safety Features

The CW3S series incorporates multiple safety considerations into its structural design. A special explosion-proof valve allows for orderly release of internal pressure in abnormal situations, effectively preventing housing rupture. The insulation between the terminals and the housing has been rigorously verified to withstand a 2000V AC voltage withstand test for one minute, providing a solid guarantee for equipment safety.

The product's snap-in mounting design not only simplifies assembly but also provides a more reliable mechanical connection. This design helps reduce loosening due to vibration, making it particularly suitable for long-term use in industrial vibration environments.

Frequency and Temperature Adaptability Analysis

The CW3S series exhibits excellent frequency characteristics. Its ripple current handling capability significantly increases with increasing frequency: the coefficient is 0.8 at 50Hz, 1.0 at 120Hz, and reaches 1.4 above 10kHz. This feature makes the CW3S particularly well-suited for the high-frequency operating environments of modern switching power supplies, providing hardware support for efficient energy conversion.

In terms of temperature adaptability, the product exhibits balanced performance across various ambient temperatures. At 40°C, the ripple current correction factor is 2.7; as the temperature rises, the factor gradually decreases, reaching 1.0 at 105°C. This scientific temperature derating design ensures safe operation across the entire temperature range.

Reliability Verification and Quality Assurance

YMIN conducted comprehensive reliability testing on the CW3S series. After applying rated ripple current and voltage for 3000 hours at 105°C, all parameters continued to meet stringent requirements: capacitance change did not exceed ±20% of the initial value, loss tangent did not exceed 200% of the initial specification, and leakage current remained within initial specifications.

High-temperature storage testing also yielded satisfactory results: after 1000 hours of storage at 105°C, performance degradation remained within reasonable limits, demonstrating its stability during storage and transportation. This reliable performance reduces inventory management burdens for manufacturers and extends the product's useful life.

Economical and Environmental Advantages

The CW3S series offers significant cost-effectiveness for budget-sensitive industrial applications. The product is RoHS-compliant and manufactured with recyclable materials, embodying the principles of green manufacturing. While maintaining performance, the CW3S maximizes material efficiency through optimized design, contributing to sustainable development.

Professional Technical Support and Service System

YMIN has a comprehensive technical support team for the CW3S series, providing comprehensive technical guidance from product selection to application design. The company also offers customized services tailored to specific customer needs, ensuring a perfect match between the capacitor and the entire system. A responsive after-sales service mechanism ensures timely resolution of any issues.

Application Prospects and Market Positioning

With its compact size and reliable performance, the CW3S series has broad application prospects in industrial automation, robotics, CNC equipment, and other fields. As industrial equipment continues to move towards miniaturization and efficiency, market demand for the CW3S series is expected to continue to grow. Its cost-effectiveness makes it particularly suitable for the mid-range industrial equipment market, providing equipment manufacturers with a competitive component option.

Conclusion

The CW3S series aluminum electrolytic capacitors represent the cutting-edge technology of compact industrial capacitors. Their high performance within a limited space provides crucial support for the innovative development of industrial automation equipment. Whether it's precision servo systems, industrial robots, or CNC equipment, the CW3S provides reliable energy management solutions for power conversion systems.

With the advent of the Industry 4.0 era, the CW3S series will continue to leverage its technological advantages to help industrial equipment manufacturers enhance their product competitiveness. YMIN will also continue its commitment to technological innovation, providing high-quality components and comprehensive technical services for the global development of industrial automation.