LKL(R)

LKL(R) Series: High-Performance Radial-Leaded Aluminum Electrolytic Capacitors Designed for Harsh Environments

In today's rapidly developing electronics industry, the requirements for core components are becoming increasingly stringent. Especially in high-end applications such as automotive electronics, new energy, industrial drives, and servers, stability, long life, and high-temperature tolerance have become the gold standard for measuring product quality. YMIN's LKL(R) series of high-temperature, long-life radial-leaded aluminum electrolytic capacitors is a benchmark product meticulously designed to meet these challenges. More than just a simple energy storage component, it serves as a reliable foundation for the stable operation of entire electronic systems.

I. Product Positioning and Core Value: Exceeding Standards, Defining Reliability

The LKL(R) series is an aluminum electrolytic capacitor designed specifically for extreme environments and long-term operation. Its core value lies in integrating high reliability into every aspect of its product design. A key feature of this series is its ability to operate stably for 2000 hours in ambient temperatures up to 135°C. This performance far exceeds the standards of ordinary industrial-grade capacitors and directly meets the highest reliability requirements in the automotive electronics field—AEC-Q200 certification. This means the LKL(R) series is naturally capable of withstanding harsh conditions such as high engine compartment temperatures and drastic fluctuations in vehicle power supply, providing solid protection for modern vehicles' electronic control units, LED lighting, and battery management systems.

In addition to its excellent high-temperature durability, the LKL(R) series also features low impedance and low loss. In high-frequency switching power supplies, the equivalent series resistance (ESR) of a capacitor is a key factor affecting its filtering and voltage regulation performance. LKL(R) utilizes advanced electrolyte technology and electrode foil design to effectively reduce ESR, resulting in lower heat generation and higher efficiency when handling high-frequency ripple currents. This ensures output voltage purity under heavy loads and dynamic load fluctuations, which is crucial for power-sensitive equipment such as AI data servers and communication base station power supplies.

YMIN also ensures that the LKL(R) series is fully compliant with the RoHS directive, eliminating the use of hazardous substances and meeting global market environmental requirements, allowing customers to pursue high performance while also practicing environmental protection.

II. In-Depth Technical Analysis: The Engineering Secrets Behind Superior Performance

The LKL(R) series' exceptional performance isn't accidental; it stems from rigorous material science and manufacturing processes.

1. Wide Temperature Range and Long Life Guarantee:

The product's operating temperature range covers -55°C to +135°C. From the bitter cold of northern China to the scorching heat of equipment interiors, the LKL(R) maintains stable electrical performance. Its 2,000-hour life test is conducted under extreme conditions of rated voltage and rated ripple current. After testing, the capacitor's capacitance change, loss tangent, and leakage current are all controlled within extremely tight tolerances. This is due to the unique electrolyte formulation and sealing technology, which significantly slows electrolyte drying at high temperatures, resulting in an exceptionally long service life.

2. Rigorous Electrical Parameter Specifications:

• Capacitance and Voltage: The rated voltage range covers 10V to 50V DC, with a wide capacitance range, from tens to thousands of microfarads, to meet the energy storage and filtering requirements of various circuit designs. The capacitance tolerance is ±20% of the standard grade.

• Leakage Current Control: Leakage current is a key indicator of capacitor quality. LKL(R) capacitors adhere to the strict standard of I≤0.01CV or 3μA (whichever is greater), ensuring efficient energy storage in power circuits rather than unnecessary loss.

• Loss Tangent: As the rated voltage increases, the loss tangent decreases, demonstrating improved efficiency in high-voltage applications.

• Low-Temperature Characteristics: At -40°C, the ratio of the impedance to the impedance at 20°C is strictly controlled, ensuring the capacitor can still provide sufficient instantaneous power during cold starts or when used in cold regions.

3. Precise Dimensions and Structural Design:

LKL(R) capacitors are available in a variety of sizes, ranging from 6.3mm to 18mm in diameter, with lengths optimized based on capacitance and voltage level. This meticulous dimensional planning allows engineers to find the right installation space for high-performance capacitors within a compact PCB layout. Clearly defined pin spacing and diameter also facilitate automated placement and soldering.

4. Optimization for High-Frequency Applications:

The ripple current frequency correction factor provided in the product datasheet indicates that LKL(R) maintains excellent performance at frequencies up to 10kHz (correction factor of 1.0). This means it can effectively smooth high-frequency ripple current in modern high-frequency switching power supplies, making it an ideal choice for applications such as frequency converters, inverters, and high-efficiency power adapters.

III. Typical Application Scenarios: The Core Power of Empowering Future Technology

The LKL(R) series, with its high reliability and high performance, plays an irreplaceable role in multiple cutting-edge fields.

• Automotive Electronics: This is the core application of the LKL(R) series. Whether it is the engine control unit and body electronic modules of traditional fuel vehicles or the motor drives, on-board chargers, and battery management systems of new energy vehicles, capacitors must operate stably in high-temperature and high-vibration environments. LKL(R)'s AEC-Q200 qualification makes it the preferred choice for these systems, safeguarding the safety, comfort, and intelligence of vehicles.

• AI Data Servers and Communications Equipment: Server power supplies and GPU computing cards require extremely high power purity and transient response capabilities. LKL(R)'s low impedance effectively suppresses power supply noise, providing stable and clean current to CPUs and GPUs, ensuring uninterrupted 24/7 data center operations. It also meets the challenges of high frequency and high power in 5G base station power modules.

• Industrial Automation and Robotics: Servo drives and inverters are the core of industrial robots and intelligent equipment. The busbar capacitors in these devices must withstand high ripple currents and frequent charge and discharge cycles. LKL(R)'s long life and high ripple current tolerance ensure production line continuity and reliability, reducing downtime and maintenance.

• New Energy: In photovoltaic inverters and wind turbine converters, capacitors are used for DC link support and filtering. LKL(R)'s high-temperature performance can withstand the high temperatures inside inverter cabinets, helping to efficiently and stably integrate green energy into the grid.

• Smart Home Appliances and High-End Power Supplies: From smart TVs and game consoles to PD fast-charging chargers, there is a dual demand for miniaturization and high performance in components. The LKL(R) achieves high capacity and low impedance in a compact size, satisfying the consumer electronics industry's pursuit of "small yet powerful" power modules.

IV. Conclusion: Choose LKL(R), Choose Lasting Peace of Mind

In today's rapidly evolving electronic technology, component selection often determines the market competitiveness and reputation of the final product. YMIN's LKL(R) series of high-temperature, long-life aluminum electrolytic capacitors is more than just a rigorously tested electronic component; it embodies YMIN's commitment to reliability. They carry the engineers' pursuit of extreme product performance and the end users' expectations for long-term, stable device operation.

When your design faces the challenges of high temperature, high reliability, and long life, choosing the LKL(R) series is like injecting a strong and reliable "heart" into your product, allowing you to gain an advantage in the fierce market competition and face challenges head-on.