In the European automotive electronics sector, low power consumption has become a stringent entry requirement, especially in the German market where regulations on vehicle components, energy efficiency standards, and OEM design specifications constrain the system's performance. The power consumption control of passive components directly determines whether an automotive system can meet these standards. As the core power supply unit, the hidden losses caused by capacitor leakage current (LC) in DC-DC converters are a key factor leading to excessive static power consumption and unstable vehicle IQ compliance.

YMIN Electronics focuses on the pain point of low power consumption in automotive DC-DC converters, launching the VHU series solid-liquid hybrid aluminum electrolytic capacitors. Utilizing nanoscale dielectric layer aluminum foil technology, these capacitors overcome the leakage current problem at the device level, providing a stable, compliant, and mass-producible low-power solution for automotive electronics.

I. Core Pain Point: Leakage Current as a Bottleneck for DC-DC Power Consumption

In standby and light-load conditions, when multiple electrolytic capacitors are used in parallel, the μA-level leakage current of a single capacitor in a DC-DC system continuously accumulates and fluctuates with temperature and time, ultimately increasing the overall static power consumption and making it difficult for the vehicle's energy efficiency to meet stringent requirements. Traditional capacitors are prone to leakage current rebound after high-temperature reflow soldering, further exacerbating the power consumption risk and becoming a core obstacle for automakers' low-power design.

II. Technological Breakthrough: The Core Advantage of Low Leakage Current in the VHU Series

The VHU series, relying on nanoscale dielectric layer aluminum foil technology, significantly optimizes leakage current performance while ensuring stability during high-temperature processes and long-term use, completely solving the leakage current rebound problem of traditional capacitors.

Taking the flagship model VHU 35V 270μF (10×10.5mm) as an example: Standard leakage current: 94.5μA
Actual application stability: ≈30μA
After high-temperature reflow soldering: ≤60μA
Through rigorous testing and verification, the product demonstrates outstanding performance:

4000 hours of high-temperature load stability: Excellent capacity retention and ESR performance; leakage current does not rebound over a long period;
Full temperature range adaptability: Leakage current control remains stable across a wide temperature range of -55℃ to +135℃;
Strong parameter consistency: No significant drift in electrical performance under high-temperature and long-term operating conditions.

III. Real-world vehicle verification: A case study of DCDC power consumption compliance
In leading new energy vehicle 3.0 EV platforms and DMI DCDC systems, the customer's original solution faced the problem of overall power consumption exceeding 240μA, failing to meet energy efficiency requirements.

Without altering the system architecture, replacing the capacitors with Yongming VHU 35V 270μF capacitors resulted in the following key breakthroughs:
* Overall power consumption was stably controlled below 240μA;
* Power consumption fluctuations were significantly reduced, leading to more stable system operation;
* Successfully passed the vehicle energy efficiency design assessment.

This case demonstrates that by optimizing the core capacitors alone, the power consumption bottleneck of DCDC systems can be quickly overcome, reducing R&D and modification costs for automakers.

IV. Product Certification and Selection Value
The Yongming VHU series has passed AEC-Q200 automotive-grade certification and complies with international environmental standards such as RoHS, REACH, and ELV, meeting the stringent requirements of the European and American automotive markets.

The products can directly replace capacitors from leading international brands in a pin-to-pin manner, providing automakers with a stable second source of supply, balancing performance, compliance, and supply chain security.

V. Take Immediate Action
For VHU series datasheets, certification reports, or to request samples and technical verification support, please contact the Yongming Electronics technical team to expedite the mass production of low-power DCDC solutions.

Official website: https://www.ymin.cn/ Business email: [email protected]