LKD

LKD Series High-Voltage Aluminum Electrolytic Capacitors: A Perfect Blend of Superior Performance and Long-Lasting Reliability

In the electronic component industry, high-voltage applications place extremely stringent demands on capacitor performance. Shanghai YMIN Electronics' LKD series aluminum electrolytic capacitors are high-performance electronic components meticulously crafted to meet this demand. With their superior electrical properties, ultra-long service life, and stable performance, these products demonstrate unique value in demanding applications such as industrial control, new energy, and automotive electronics.

Technological Innovations that Break Through Conventional Designs

The LKD series utilizes an advanced radial lead structure, achieving high-capacity electrical characteristics while maintaining a compact size. The standardized 10.0mm pin pitch facilitates assembly during automated production and provides greater flexibility in circuit board layout. Compared to conventional products, the LKD series features numerous structural optimizations: high-purity anodized aluminum foil, specially treated electrolytic paper, and an improved electrolyte formula, all ensuring stable performance in high-voltage environments.

Of particular note, the LKD series maintains excellent performance stability across a wide temperature range of -40°C to +105°C. This feature makes it particularly suitable for applications subject to drastic temperature fluctuations, such as outdoor power equipment and automotive engine compartments. The product's rated voltage range covers 400V to 600V, with a capacity range from 100μF to 560μF, providing design engineers with a wide range of options.

Excellent Electrical Performance

The LKD series excels in electrical performance. Its capacitance tolerance is strictly controlled within ±20% (at 25±2°C and 120Hz), ensuring consistency across batches. Leakage current is particularly outstanding, measured after a two-minute charge at rated voltage, far exceeding industry standards.

The product's loss tangent (tgδ) remains low across the rated voltage range, with tgδ values ​​exceeding 10 for the 400V specification and 15 for the 600V specification. The LKD series' low loss characteristics make it an excellent choice for high-efficiency power supply designs, helping to improve overall system efficiency. Regarding impedance characteristics, the ratio of the product's impedance at -40°C to its impedance at 20°C is well within a reasonable range, ensuring reliable operation in low-temperature environments.

Durability in Harsh Environments

To verify the long-term reliability of the product, YMIN conducted rigorous durability testing on the LKD series. After applying the rated voltage and rated ripple current for 8000 hours at 105°C, all product parameters remained within specified ranges: the capacity change rate did not exceed ±20% of the initial value, the loss tangent did not exceed 200% of the initial specification, and the leakage current remained below the specified value.

High-temperature and high-humidity testing further demonstrated the product's environmental adaptability. After 1000 hours of storage at 105°C and high humidity, the product's performance remained within specifications. This excellent environmental tolerance makes the LKD series particularly suitable for use in harsh operating conditions, such as photovoltaic inverters and industrial inverters.

Excellent Ripple Handling Capability

The LKD series' ripple current handling capability is another highlight. The product supports a wide frequency range, from 50Hz to 100kHz, and features detailed frequency correction coefficients. At 100kHz, the correction coefficient reaches 1.00, demonstrating excellent performance in high-frequency environments. The temperature correction coefficient ensures stable operation across a wide range of ambient temperatures, with corresponding calibration parameters from 50°C to 105°C.

This robust ripple handling capability makes the LKD series particularly suitable as output filter capacitors for switching power supplies, effectively smoothing the output voltage, reducing ripple noise, and improving power quality.

Wide Applications

New Energy Vehicles

In the new energy vehicle industry, LKD series capacitors are widely used in key systems such as on-board chargers (OBCs) and motor drives. Their high 600V rated voltage perfectly matches the high-voltage platform requirements of electric vehicles, and their 8,000-hour lifespan ensures reliability throughout the vehicle's lifecycle. The product is AEC-Q200 certified and fully complies with automotive electronics industry standards.

Industrial Automation

In industrial inverters, servo drives, and other equipment, the LKD series is used as a DC bus capacitor, effectively stabilizing the intermediate circuit voltage and suppressing harmonic interference. Its excellent temperature characteristics ensure stable operation in industrial environments, and its low-temperature operation capability of -40°C makes it suitable for industrial applications in various climates.

New Energy Power Generation

In new energy equipment such as photovoltaic inverters and wind turbine converters, the LKD series performs important energy buffering and filtering functions. Its high-voltage characteristics enable direct use on the DC side of the inverter, simplifying circuit design and improving system reliability.

Power Systems

In applications such as smart meters and power monitoring equipment, the LKD series provides stable energy storage and filtering, ensuring measurement accuracy and communication reliability. Its long lifespan reduces maintenance requirements and lowers overall lifecycle costs.

Strict Quality Control System

YMIN Electronics has established a comprehensive quality management system for the LKD series. From raw material storage to finished product delivery, every step is rigorously inspected. Automated production lines ensure product consistency and reliability, while a comprehensive quality traceability system ensures traceability of each batch.

All products comply with RoHS environmental regulations and have passed relevant safety certifications. The company has also established a comprehensive application technical support system, providing customers with comprehensive technical support from selection guidance to circuit design.

Future Development Trends

With the rapid development of industries such as Industry 4.0 and new energy vehicles, market demand for high-voltage, large-capacity capacitors will continue to grow. The high-reliability, long-life, and environmentally friendly capacitors represented by the LKD series are precisely the mainstream demand in this future market. YMIN Electronics will continue to invest in research and development, continuously optimizing product performance and providing higher-quality solutions to customers worldwide.

Conclusion

The LKD series high-voltage aluminum electrolytic capacitors, with their superior technical performance, reliable product quality, and wide application adaptability, have become key components in demanding electronic systems. Whether it's automotive electronic systems that demand ultimate reliability, new energy power generation equipment requiring high efficiency, or industrial applications in harsh environments, the LKD series provides a perfect solution.

Choosing the LKD series means choosing an insistence on quality, a pursuit of innovation, and a deep understanding of customer needs.