YMIN VHU Series Capacitors: Low Leakage Current Technology Solution For Automotive DC-DC Systems

(MENAFN- Market Press Release) March 31, 2026 9:05 pm - In automotive-grade DC-DC low-power applications, the VHU series solid-liquid hybrid aluminum electrolytic capacitors can achieve pin-to-pin replacement with target leading international brands, becoming a reliable second source oFsupply forcustomers

I. Industry Trends
In the European and German automotive electronics sector, low power consumption has evolved from an optional optimization to a mandatory entry requirement, subject to multiple constraints from vehicle regulations, energy efficiency standards, and OEM design specifications. In DC-DC systems, the accumulated implicit power consumption of passive components directly determines whether the vehicle's energy efficiency meets standards, making low leakage current a core necessity for automotive capacitors.

II. Core Pain Point: Leakage Current is a Key Cause of Excessive DC-DC Power Consumption

In standby and light-load conditions, multiple electrolytic capacitors connected in parallel cause a continuous accumulation of?A-level leakage current, which fluctuates with temperature and time, increasing the system's static power consumption and making it difficult for the vehicle's IQ (Input/Output) index to remain stable. Traditional capacitors are prone to leakage current rebound after high-temperature reflow soldering, further exacerbating the power consumption risk.

III. Technological Breakthrough: Overcoming the Low-Power Consumption Challenge at its Source
Yongming VHU series solid-liquid hybrid aluminum electrolytic capacitors utilize nanoscale dielectric layer aluminum foil technology to optimize leakage current performance at both the material and process levels, ensuring both high-temperature stability and long-term reliability, thus completely solving the problem of uncontrollable leakage current in traditional solutions.

Key Performance of Main Model (VHU 35V 270?F, 10×10.5mm)
Standard Leakage Current: 94.5?A
Actual Application Stability:?30?A
After High-Temperature Reflow Soldering:?60?A
Rigorous Testing and Verification
4000-Hour High-Temperature Load Test: Excellent capacity retention and ESR performance; long-term stable leakage current without rebound
Full-Temperature Adaptability Test: Excellent leakage current control capability across a wide temperature range of -55 to +135
Consistency Guarantee: Minimal drift in product parameters under high temperature and long-term operating conditions; more stable system power consumption

IV. Real-Vehicle Verification: Efficiently Overcoming the Power Constraint of Onboard DCDC
A leading new energy vehicle 3.0 EV platform and DMI DCDC system had an original solution with a total power consumption exceeding 240?A, which could not meet energy efficiency requirements. Without changing the system architecture, directly replacing the capacitors with VHU series capacitors results in:
Power consumption reduced to below 240?A, meeting vehicle energy consumption standards
Power consumption fluctuations significantly reduced, system stability significantly improved
System-level performance breakthroughs achieved through component optimization, reducing costs and increasing efficiency

V. Product Advantages and Certifications
Automotive Certification: AEC-Q200 automotive-grade certification, suitable for demanding automotive operating conditions
Environmental Compliance: Complies with international environmental requirements such as RoHS, REACH, and ELV
Alternative Advantages: Pin-to-pin compatible with leading international brands, a high-quality secondary source for the European and American markets
Scenario Adaptability: Designed specifically for low-power scenarios in automotive electronics, DC-DC converters, power modules, and energy storage units

VI. Take Immediate Action
Obtain the VHU series datasheet and complete certification report, apply for samples and technical verification, connect with the YMIN Electronics technical team, and quickly implement a low-power mass production solution for automotive DC-DC converters.

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