(MENAFN- Market Press Release) October 24, 2025 2:28 am - The VKM series incorporates several advanced technologies: Micron-level precision etching increases the effective contact area between electrodes, improving capacitance density and charge-discharge efficiency.

With the widespread adoption of smart lighting in diverse scenarios, including outdoor, industrial, and cold chain applications, common industry pain points such as startup failure in low-temperature environments and reduced reliability after long-term operation have become increasingly prominent. A reporter recently learned from Yongming Electronics that the company's independently developed VKM series of surface-mount aluminum electrolytic capacitors, through innovations in both materials and processes, has successfully overcome these challenges, providing key component support for the high-quality development of the smart lighting industry.

I. Industry Bottleneck: Ordinary Electrolytic Capacitors Become a Key Performance Shortcoming

Industry test data shows that ordinary electrolytic capacitors have significant performance shortcomings in smart lighting scenarios, becoming a core bottleneck hindering product upgrades. The R&D director of Yongming Electronics pointed out that the root causes lie in four major technical shortcomings:

1. Inadequate low-temperature adaptability: Traditional electrolytes experience a sharp increase in viscosity at extremely low temperatures of -40°C, significantly reducing ion migration efficiency and causing over 50% capacitance loss, directly leading to startup difficulties.

2. Poor material compatibility: The temperature coefficients of the dielectric and electrode materials are not coordinated, leading to significant parameter fluctuations over a wide temperature range and inability to maintain stable power supply.

3. Weak package sealing: Low temperatures cause the package material to shrink, damaging the seal structure. This not only creates the risk of leakage but also accelerates electrolyte volatilization.

4. Rapid aging at high temperatures: The heat generated by long-term operation of smart lighting devices accelerates electrolyte loss and oxide film degradation, resulting in a lifespan of only 2,000 hours at 105°C.

"Outdoor lighting in northern China frequently fails to start up in winter, and industrial lighting fails within a year. These problems are directly related to the performance shortcomings of conventional electrolytic capacitors," an engineer long engaged in smart lighting R&D told reporters.

II. Technological Breakthrough: Dual Innovation in Materials and Processes Strengthens Core Advantages

To address industry pain points, Yongming Electronics established a dedicated R&D team. After multiple rounds of testing, they achieved breakthroughs in both material development and process upgrades, launching the VKM series of chip aluminum electrolytic capacitors.

Customized Material Solutions Address Environmental Adaptability Challenges

Material innovation is the core competitive advantage of the VKM series. According to the R&D team, the series utilizes three customized design features: First, a specialized low-temperature electrolyte was developed. By adjusting the composition ratio, it maintains high ionic conductivity at -40°C, completely addressing the issue of low-temperature performance degradation. Second, the electrode material formulation was optimized to precisely match the temperature coefficients of the electrode and dielectric materials, ensuring stable performance across a wide temperature range of -40°C to 105°C. Third, the sealing and packaging materials were upgraded and strengthened, using a special material that is resistant to high and low-temperature deformation. This ensures the seal remains intact even during extreme temperature fluctuations, eliminating the risk of leakage.

Refined Process Upgrades Enhance Reliability and Consistency

The VKM series incorporates several advanced technologies: Micron-level precision etching increases the effective contact area between electrodes, improving capacitance density and charge-discharge efficiency. Advanced chemical formation technology creates a denser and more uniform oxide film, reducing leakage current by 30% compared to conventional products. Fully automated assembly and testing minimizes manual errors and ensures consistent performance across batches.

III. Performance Verification: Data-Backed Advantages and Rigorous Testing for Reliability

Third-party testing data and Yongming's internal testing results demonstrate that the VKM series capacitors achieve a substantial improvement over conventional electrolytic capacitors in core performance indicators.

In addition to these performance advantages, the VKM series has also passed numerous rigorous reliability tests: After 1000 cycles between -40°C and 105°C, no significant drift in electrical performance parameters was observed. Performance remained stable after 1000 hours of continuous operation in a high-temperature, high-humidity environment at 85°C/85% RH. Accelerated life testing at 105°C demonstrated 10,000 hours of continuous operation without failure, fully meeting the long-term operational requirements of diverse scenarios.

IV. Scenario Adaptation: Precise Selection Solutions Empower Industry Implementation

To facilitate rapid adaptation to different scenarios, Yongming Electronics has released a scenario-based selection guide for the VKM series, covering core smart lighting applications:

1. For high-power LED lighting scenarios, such as shopping mall chandeliers and outdoor streetlights, the VKM_80V_100F model is recommended. Its ample filtering capacity can stably support high-power loads, and its long lifespan makes it suitable for complex outdoor environments.

2. For compact lighting scenarios, such as smart bulbs and small spotlights, choose VKM series small package models (such as the 6.3×7.7mm specification) to save PCB layout space while ensuring performance.

3. For scenarios requiring a long lifespan, such as industrial lighting and municipal engineering lighting, the 105°C/10,000-hour rating is preferred. This ensures long-term maintenance-free operation with a single installation, reducing O&M costs.

4. For low-temperature environments, such as outdoor lighting in northern China and cold chain warehouse lighting, the full range of VKM capacitors is compatible, offering a 100% startup success rate without the need for additional compensation circuitry.

Conclusion

Industry experts stated that the technological breakthrough of Yongming's VKM series chip aluminum electrolytic capacitors not only addresses a long-standing pain point in the smart lighting industry, but also promotes technological upgrades in the capacitor industry's adaptability to special environments. The launch of this product will accelerate the large-scale implementation of smart lighting in scenarios requiring low temperatures and long lifespans, providing strong support for the high-quality development of the new energy and smart terminal industries.

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