VKL(R)

VKL(R) Series Aluminum Electrolytic Capacitors: The Ideal Choice for High-Reliability Electronic Equipment

In today's rapidly evolving electronics industry, miniaturization, high reliability, and high-temperature resistance of components have become key industry requirements. YMIN's VKL(R) series aluminum electrolytic capacitors, with their superior technical characteristics and stable performance, are becoming the preferred components for many high-end electronic devices.

Product Overview and Technical Advantages

The VKL(R) series is a surface-mount aluminum electrolytic capacitor that can operate stably for 2000 hours at 135°C, specifically designed for high-density fully automated surface mount processes. Utilizing advanced materials and process technologies, this series exhibits excellent stability during high-temperature reflow soldering, fully complies with RoHS environmental standards, and has obtained the important AEC-Q200 certification for the automotive electronics industry, fully demonstrating its reliability in harsh environments.

The product's operating temperature range covers -55°C to +135°C, rated voltages range from 10V to 50V, and capacitance values ​​range from 47μF to 3300μF, providing design engineers with a wide range of choices. Its capacitance tolerance is controlled within ±20%, exhibiting stable electrical characteristics under testing conditions of 25℃ and 120Hz.

Core Technical Features

High-temperature durability is one of the most prominent advantages of the VKL(R) series. After 2000 hours of durability testing at 135℃, the capacitance change of this series of capacitors remains within ±30% of the initial value, the loss tangent does not exceed 300% of the specified value, and the leakage current is strictly controlled within the standard range. This excellent stability ensures the reliability of electronic equipment under long-term high-temperature operating conditions.

Low ESR characteristics make the VKL(R) series perform excellently in high-frequency applications. As the frequency increases, its equivalent series resistance decreases significantly. At frequencies above 10kHz, the ripple current coefficient reaches 1.0, making it particularly suitable for applications requiring the handling of large ripple currents, such as high-frequency switching power supplies and DC-DC converters.

Advanced structural design allows the VKL(R) series to adapt to the needs of fully automated high-density surface mount production. The product range offers various diameters from 6.3mm to 18mm and heights from 10mm to 21mm, meeting the space requirements of different circuit board layouts. Precise dimensional control and robust packaging structures ensure high accuracy and efficiency during automated placement.

Application Areas

Automotive electronic systems are a primary application area for the VKL(R) series. With the increasing level of automotive electronics, engine control units (ECUs), advanced driver assistance systems (ADAS), and in-vehicle infotainment systems all require electronic components capable of stable operation in extreme temperature environments. The VKL(R) series complies with the AEC-Q200 standard, meeting the stringent reliability and durability requirements of automotive electronics.

In AI data servers and communication equipment, VKL(R) series capacitors provide stable filtering and energy storage for CPU and GPU power supply circuits. Their low ESR characteristics help reduce power supply ripple, improve the stability of digital circuits, and provide a clean and stable power environment for high-performance computing equipment.

Applications in the new energy field include solar inverters, wind power converters, and electric vehicle charging stations. These devices typically operate in harsh environments with high temperatures and humidity, placing extremely high demands on the reliability of components. The high-temperature durability and long lifespan of the VKL(R) series make it an ideal choice for these applications.

Industrial automation equipment, such as robot control systems and motor drives, requires components capable of withstanding frequent power fluctuations and mechanical vibrations. The VKL(R) series utilizes a robust packaging structure and optimized internal materials to ensure long-term stable operation in industrial environments.

Design and Manufacturing Process

YMIN has over twenty years of experience in the research and manufacturing of aluminum electrolytic capacitors. The VKL(R) series represents the company's highest level of technology in liquid miniature aluminum electrolytic capacitors. The product uses high-purity aluminum foil and a special electrolyte, achieving high capacitance density in a miniaturized size through advanced etching and formation processes.

A strict quality management system is implemented throughout the manufacturing process, with rigorous control at every stage from raw material warehousing to finished product delivery. Automated production lines ensure product consistency and reliability, while comprehensive testing procedures guarantee that every capacitor meets specifications.

Detailed Technical Specifications

The electrical parameters of the VKL(R) series are meticulously designed to meet the needs of various applications. Taking the typical VKL(R)E1001A471MVTM model as an example, this capacitor provides a capacitance of 470μF at a rated voltage of 10V, achieving excellent performance in a compact 10mm × 10mm size. Its leakage current is controlled below 47μA, and the rated ripple current reaches 500mA, maintaining stable electrical characteristics even under high-temperature and high-frequency environments.

The product's frequency characteristics are specifically optimized, exhibiting appropriate impedance characteristics at different frequencies. As the frequency increases from 50Hz to above 10kHz, its ripple current coefficient increases from 0.35 to 1.0, a characteristic that makes it particularly suitable for the high-frequency operation requirements of modern switching power supplies.

Application Design Considerations

When designing circuits using VKL(R) series capacitors, engineers need to consider several key factors. Firstly, regarding the operating temperature range, although the product supports a wide temperature range of -55℃ to +135℃, appropriate derating is necessary in high-temperature environments to ensure long-term reliability. Secondly, regarding ripple current capability, the maximum ripple current needs to be calculated in practical applications to ensure it does not exceed the product's rated value.

In terms of mounting and layout, it is recommended to provide appropriate heat dissipation measures in the PCB design to avoid placing capacitors near heat-generating components. For automated placement processes, recommended pad designs and reflow profiles should be followed to ensure soldering quality and reliability.

Market Competitiveness Analysis

The VKL(R) series has a clear competitive advantage in the market. It combines high-temperature performance, long lifespan, and miniaturization, offering excellent cost-effectiveness compared to other products of similar specifications. In particular, the AEC-Q200 certified version provides reliable quality assurance for automotive electronics customers.

Compared to traditional through-hole aluminum electrolytic capacitors, the surface-mount design of the VKL(R) series is more suitable for the high-density, automated production needs of modern electronic devices. Compared to solid-state capacitors, it has a significant cost advantage in high-voltage, high-capacity applications.

Future Development Trends

With the rapid development of emerging technologies such as 5G communication, the Internet of Things, and new energy vehicles, the demand for high-performance aluminum electrolytic capacitors will continue to grow. Through continuous technological innovation and process optimization, the VKL(R) series will continue to improve in terms of miniaturization, high reliability, and high-temperature performance to meet the higher power density and efficiency requirements of future electronic devices.

Conclusion

YMIN VKL(R) series aluminum electrolytic capacitors, with their superior high-temperature performance, stable electrical characteristics, and reliable quality, have become the preferred components for many high-end electronic devices. Whether in automotive electronics, industrial control, or communication equipment, the VKL(R) series provides design engineers with reliable solutions, helping electronic devices develop towards greater efficiency, reliability, and compactness.

Through continuous technological innovation and strict quality control, YMIN is committed to providing global customers with the highest quality capacitor products and technical support, jointly promoting the progress and development of the electronics industry.