Hybrid E-Cap combines the high-capacity advantages of traditional liquid electrolytic capacitors with 

the stability of solid-state capacitors. Through the mixed electrolyte technology of conductive polymers 

and electrolytes, it achieves low equivalent series resistance (ESR), high ripple current carrying capacity, 

and long lifespan. The following analysis will focus on technological advantages, typical application areas, 

and future development directions:

1、 Core performance advantages

Low ESR and High Frequency Characteristics

The ESR value of solid-liquid hybrid capacitors is significantly lower than that of traditional liquid electrolytic 

capacitors (for example, the ESR of a 47 μ F hybrid capacitor can be lower than that of a 330 μ F liquid capacitor), 

which enables it to effectively reduce energy loss and temperature rise in high-frequency circuits, while improving 

filtering efficiency. For example, in switch mode power supplies, hybrid capacitors can reduce the output ripple 

voltage to below 30% of traditional solutions.

High reliability and lifespan

After adopting solid-liquid mixing technology, the failure mode of capacitors is mainly open circuit, avoiding 

the short circuit risk of liquid capacitors. Its high temperature stability is excellent, with a working temperature 

range of -55 ℃ to 150 ℃, and a lifespan of over 4000 hours in an environment of 125 ℃ (3-6 times that of liquid 

capacitors).

Miniaturization and high capacity density

Hybrid capacitors achieve equivalent or higher performance in smaller volumes by optimizing electrolyte materials 

and structural design. For example, the size of a 47 μ F hybrid capacitor (6.3 × 5.8 mm) is only one-third of 

that of a traditional liquid capacitor (10 × 10.2 mm), while maintaining high ripple current capability (200 mA/μ F, 

liquid capacitor only 20 mA/μ F).

2、 Typical application scenarios

New energy vehicle power system

DC support capacitor: In motor inverters and battery management systems, hybrid capacitors replace liquid electrolytic 

capacitors as DC support capacitors, which can withstand high switching frequencies (about 10 kHz) and high 

voltage fluctuations (1.5 times the rated voltage). For example, after adopting this technology, the system 

volume of Toyota Prius and BYD models has been reduced by 50%, and the anti surge voltage capability has 

been increased by 1.5 times.

Battery management: Reduce energy loss through low ESR characteristics, ensure battery charging and discharging 

efficiency, while maintaining stability at extreme temperatures.

5G Communication and Industrial Power Supply

Base station power filtering: In the power amplifier and signal processing unit of 5G base stations, hybrid capacitors 

(such as the Yongming VHT series) provide ultra-low ESR (<6 m Ω) and instantaneous current support of 20A 

or more, ensuring the stability of high-frequency signals.

Industrial frequency converter: used in motor drive circuits to reduce temperature rise and extend equipment 

life through high allowable ripple current.

Enterprise level storage devices

Solid state drive (SSD) power management: Hybrid capacitors are used in the power filtering and energy storage 

stages of SSDs to protect data cache through fast charging and discharging characteristics, avoiding data 

loss caused by power interruption. For example, the Yongming solution can reduce the number of components 

by 50% and compress the PCB area by 40%.

Consumer electronics and high-end motherboards

High frequency power module: In laptop and server motherboards, hybrid capacitors are used for DC-DC converters 

to reduce high-frequency noise and improve energy efficiency.

Overclocking application: Supports instantaneous high current demand during CPU overclocking, ensuring 

voltage stability and low heating.

3、 Future technological trends

Material upgrade

By using polymer solid electrolytes such as polypyrrole, the high temperature resistance (target 175 ℃) 

and capacity density are further improved, while reducing the risk of leakage current.

Intelligent integration

Develop a "capacitor+sensor" module to monitor the health status of capacitors in real time (such as ESR 

change rate), and link it with the system controller to achieve fault warning.

Environmental Protection and Cost Optimization

Reduce manufacturing costs and expand its applications in smart homes, medical devices, and other fields 

through lead-free processes and large-scale production.

summarize

Solid liquid hybrid electrolytic capacitors, with their performance advantages, are gradually replacing traditional 

liquid capacitors and becoming the preferred choice for high reliability and high-frequency application scenarios. 

The expansion of application scenarios from new energy vehicles to 5G base stations is closely related to the 

iteration of materials and processes. In the future, with the breakthrough of conductive polymer technology, 

hybrid capacitors are expected to achieve the power management goals of "small volume, long life, and high 

stability" in a wider range of fields.

About Us

Guangdong Fulong Electronic Technology Co., Ltd. is a private high-tech enterprise specializing in the research and development, manufacturing, and sales of aluminum electrolytic capacitors, certified by IATF16949，ISO9001, ISO14001, and ISO45001. The company has a building area of 17000 square meters and more than 50 automated production lines; The total investment is 50 million yuan (RMB), with more than 100 employees, including more than 20 engineering and technical, quality management, and production management personnel. The annual production of capacitors (4 * 5.4~16 * 21.5) is about 400 million pieces; Our products are mainly sold to domestic and international markets, and we strive to promote our company's products globally.

Jiangxi Fulong Electronic Technology Co., Ltd. is a wholly-owned subsidiary of Guangdong Fulong Electronic Technology Co., Ltd. established in Hukou County, Jiangxi Province with a total investment of 500 million yuan. It has 50 fully automated production lines and an annual output of approximately 1.2 billion capacitors (4 * 5.4~16 * 21.5).

Fulong Group has an international professional core technology research and development team for aluminum electrolytic capacitors and a global sales network. Rich experience in the design, research and development, and production management of aluminum electrolytic capacitors. The R&D team follows the technical design theory of aluminum electrolytic capacitors, complies with international and domestic legal and regulatory requirements (RoHs), and adheres to the highest international quality standards

Fulong Group has high-quality and stable raw material supply partners, and key raw materials (such as aluminum foil, electrolytic paper, etc.) are selected from well-known Japanese and Korean companies (KJCC KDKNKK, etc.), ensuring reliable and stable advantages in product quality, environmental protection, safety, and energy conservation.

Fulong Group has a group of highly qualified professional technicians and management personnel who can produce various series of sheet aluminum electrolysis products according to customer requirements. The products include high-frequency low impedance, low leakage, wide temperature, extremely low impedance, non-polar, ultra long life, medium high voltage long life, high reliability and other new types of special requirements for surface mount products; At the same time, the company's products can withstand a soldering temperature of 260 ℃, meeting the lead-free reflow soldering technology required for SMT in the whole machine factory. All technical indicators of the products have reached or exceeded the international level of similar products.

While strengthening management and expanding operational scale, Fulong Group is also committed to improving its competitiveness and customer satisfaction, continuously and steadily increasing customer and social trust, continuously meeting market demand, further optimizing environmental management and expanding social contributions, and developing together with the electronics industry.

Guangdong Follon Electronic Technology Co., Ltd.

Jiangxi Follon Electronic Technology Co., Ltd.

Address: Building 3, South District, Haishan Science and Technology Park, Hukou County, Jiujiang City, Jiangxi Province

www.follon.com

Professional manufacturer of high-quality surface mount electrolytic capacitors