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1. Shanghai Yongming Electronics Co., Ltd. (上海永铭电子股份有限公司) Shanghai Yongming Electronics Co., Ltd. is one of the leading capacitor manufacturers in China, renowned for its high-quality aluminum electrolytic capacitors. Yongming’s products are widely used in automotive electronics, consumer electronics, and industrial control fields, especially its solid-liquid hybrid aluminum electrolytic capacitors. The company continually invests in research and development and production technology, striving to offer products with high reliability and long lifespan.

2. Jianghai Capacitor Co., Ltd. (江海电容有限公司) Jianghai Capacitor Co., Ltd. is one of China’s largest manufacturers of aluminum electrolytic capacitors, offering a product line that includes electrolytic capacitors, solid-state capacitors, and supercapacitors. Jianghai Capacitor has earned the trust of domestic and international customers through its advanced production equipment and strict quality control. Their products are widely applied in emerging markets such as new energy vehicles, solar energy, and wind energy.

3. Chongqing Capxon Electronic Co., Ltd. (重庆凯普松电子有限公司) Chongqing Capxon Electronic Co., Ltd. is a well-known manufacturer of aluminum electrolytic capacitors in China, recognized for its high-frequency low impedance and long-life capacitors. Capxon focuses on product innovation and performance enhancement, with wide applications in home appliances, communication equipment, and power supplies. The company has a strong presence in both domestic and international markets. 4. Samwha China Electronics Co., Ltd. (三和中国电子有限公司) Samwha China Electronics Co., Ltd. has a broad influence in the Chinese market, primarily producing aluminum electrolytic capacitors and MLCC (multi-layer ceramic capacitors). The company emphasizes technological research and international cooperation, with products widely used in automotive electronics, LED lighting, and power management systems.

5. Nantong Jianghai Capacitor Co., Ltd. (南通江海电容有限公司) Nantong Jianghai Capacitor Co., Ltd. is one of China’s major capacitor manufacturers, with a significant market share for its electrolytic and solid-state capacitors both domestically and internationally. The company continually enhances its technological level and production capacity, aiming to meet customer needs in various application fields.

6. NIC Components Corp. (奈尔电子元件有限公司) NIC Components Corp. is an internationally competitive capacitor manufacturer, primarily producing highly reliable aluminum electrolytic capacitors and solid-state capacitors. The company enjoys a good reputation in the market for its quality products and excellent service, with applications across computers, communications, and industrial control sectors.

7. Changzhou Huawei Electronics Co., Ltd. (常州华威电子有限公司) Changzhou Huawei Electronics Co., Ltd. specializes in the research and production of electrolytic and film capacitors. With advanced production equipment and technology, their products are widely used in power electronics, new energy, and rail transit industries. Huawei Capacitor is favored by many customers for its high cost performance and reliability.

8. Guangdong Fenghua Advanced Technology Holding Co., Ltd. (广东风华高新科技控股有限公司) Guangdong Fenghua Advanced Technology Holding Co., Ltd. is one of China’s leading electronic component manufacturers, offering a product line that includes MLCC, film capacitors, and electrolytic capacitors. The company focuses on technological innovation and quality improvement, serving industries such as communications, automotive electronics, and consumer electronics. Fenghua Hi-Tech has a strong presence in both domestic and international markets.

9. JYH Electronics Co., Ltd. (江阴华能电子有限公司) JYH Electronics Co., Ltd. is a professional company engaged in the research and production of capacitors, mainly producing aluminum electrolytic capacitors and supercapacitors. The company emphasizes technological research and market expansion, with products widely used in new energy, industrial control, and consumer electronics.

Core of Robots Arm Hot Debut！YMIN capacitors enhance robotic arm efficiency and performance.

In the current laptop market, YMIN capacitors enhance stability and performance with their low ESR and high ripple current advantages.

YMIN Q series MLCC offers high-voltage endurance (1kV-3kV), ultra-low ESR, and superior temperature stability. Ideal for high-power wireless charging and precision circuits, it enhances integration and reliability while promoting miniaturization and lightweight design.

Be the core of 5G base station. YMIN capacitor achieve new results.

YMIN capacitors ensure efficient automotive water pump operation and reliability. For more details, visit http://ymin.cn.

YMIN Thin Film Capacitors enhance Infineon’s CoolSiC™ MOSFET G2 with low ESR, high voltage, low leakage, temperature stability, and high capacity, boosting efficiency and reliability.

Market Prospects for Smart Water Meters

Smart water meters are in high demand due to urbanization, improved living standards, and environmental awareness. The market is growing, especially with the upgrade of water supply facilities and new residential projects.

YMIN 3.8V Supercapacitor Function

YMIN 3.8V supercapacitors, paired with lithium-thionyl chloride batteries, ensure smart water meters perform data storage, measurements, and remote communication efficiently by providing high-power output and preventing battery passivation.

Advantages

Low Temperature Resistance: Operates stably from -40°C to +70°C.

Long Lifespan: Reduces maintenance costs due to non-chemical reaction energy storage.

Ultra-Low Self-Discharge: Minimizes static power consumption.

Maintenance-Free: Combines with batteries for optimal performance.

Conclusion

Market Outlook and Capacitor Role in New Energy Charging Piles

With stringent environmental policies and growing public awareness, new energy vehicle sales are expected to capture a significant market share by 2025, driving substantial demand for charging piles. The increasing penetration of new energy vehicles expands the market for charging infrastructure. During the charging process, challenges such as grid voltage fluctuations and high-current impacts may arise. Liquid snap-in type aluminum electrolytic capacitors, known for high capacitance and energy storage density, mitigate these issues by stabilizing and filtering the output DC energy, ensuring stable power quality and protecting electric vehicle batteries from overload and voltage fluctuations.

Advantages of Liquid Snap-in Type Aluminum Electrolytic Capacitors Liquid snap-in type aluminum electrolytic capacitors provide significant energy storage capacity and power compensation, supporting transient high-current demands. They exhibit high ripple current endurance, protecting internal circuits and ensuring safety and stability. Enhanced conductivity and heat dissipation capabilities contribute to their extended lifespan and high reliability, reducing maintenance costs and downtime. Excellent high-temperature stability maintains operation in elevated temperatures, crucial for outdoor applications. Their low ESR and dynamic response ensure constant output voltage, protecting battery packs and enhancing charging efficiency.

Recommendations for Selection of Liquid Snap-in Type Aluminum Electrolytic Capacitors

Conclusion

Shanghai YMIN’s liquid snap-in type aluminum electrolytic capacitors demonstrate significant advantages in new energy charging piles, enhancing system stability, safety, longevity, and optimizing charging performance. These capacitors support technological upgrades and sustainable development in the charging pile industry.

Market Prospects of Immersed Servers With the rapid development of AI, big data, and cloud computing, the demand for high-performance computing is growing, increasing the heat generated by high-power density servers. Immersion liquid cooling technology effectively addresses this heat dissipation issue, making it crucial in high-performance computing and data center markets.

Role of Capacitors in Immersion Servers China electrolytic capacitor manufacturer,Shanghai Yongming Electronic Co., Ltd. offers laminated polymer solid aluminum electrolytic capacitors (MLPCs) for immersion servers. These capacitors play a key role in power management, providing stability under high loads and efficiency. They store and release electric energy, filter and stabilize voltage, and offer high density and miniaturization. With excellent durability and reliability, they enhance system stability and reduce failure risks, promoting energy efficiency and technological upgrades in immersion servers.

In an ordinary town, there were two young men, Jack and Allen. They grew up together as good friends, sharing countless wonderful moments. However, as time passed, their feelings for each other began to transcend the boundaries of friendship.

Jack's emotions for Allen grew deeper, and their friendship evolved into a passionate romance after an unexpected kiss. Their world was filled with love and happiness for each other, as if everything was a bright future.

However, fate is not always generous. Just as Jack and Allen were planning their future, a sudden disaster changed everything. Allen was involved in a serious car accident, sustaining severe injuries and falling into a coma.

Jack was plunged into despair and helplessness. He spent his days by Allen's bedside, praying for him to wake up. However, the doctor's prognosis was bleak. Allen's injuries were too severe, with little hope of recovery.

As time passed, Jack gradually accepted the harsh reality. He had to face the fact of losing his lover, the pain in his heart was indescribable. After a cold decision, he made a heartbreaking choice.

Overnight, Jack left the town, leaving behind all the memories and the past. He chose to escape, to flee from his pain and disappointment. And Allen, forever asleep in an unreachable dream, never to awaken.

About electronic pen

As technology continues to advance, electronic pens are emerging as indispensable tools across various domains including education, design, and business. Offering a seamless blend of convenience and functionality, these pens are revolutionizing how we interact with digital content.

YMIN, recognizing the growing significance of electronic pens, has introduced two groundbreaking series of supercapacitors: the SDS series ultra-small capacitors (EDLC) and the SLX series ultra-small capacitors (LIC). These cutting-edge products have swiftly carved out a niche within electronic pen applications, thanks to their innovative technology and superior performance.

The SDS series, with its ultra-small form factor and high energy density, caters to the demanding power requirements of electronic pens, ensuring prolonged usage without compromising on performance. On the other hand, the SLX series, boasting advanced LIC technology, offers enhanced energy storage capabilities, enabling electronic pens to operate seamlessly for extended periods.

Moreover, YMIN’s commitment to environmental sustainability is reflected in the design and manufacturing process of these supercapacitors. By prioritizing energy efficiency and eco-friendliness, YMIN is not only meeting the needs of the present but also paving the way for a more sustainable future.

In essence, YMIN’s SDS and SLX series supercapacitors are not just components; they are enablers of innovation, driving the evolution of electronic pens towards greater efficiency, reliability, and environmental responsibility.

The role of YMIN supercapacitors in electronic pens

In electronic pens, the main function of SDS series and SLX series supercapacitors is to provide stable and long-lasting power. This is crucial to ensure the continued operation of the sensors and wireless transmission modules in the electronic pen. Supercapacitors have faster charging speeds and longer cycle life than traditional batteries, which allows electronic pen users to complete charging in a very short time without interrupting work or study due to battery exhaustion.

Product advantages and features

1. Ultra-small size YMIN’s supercapacitor is small in size and can be easily integrated into the compact structure of the electronic pen without affecting the pen’s grip and appearance design.

2. Large capacity Despite their small size, the SDS series and SLX series provide extremely rich capacitance, ensuring that the electronic pen has enough energy for long-term continuous use.

3. Wide temperature resistance, low internal resistance These supercapacitors operate stably over a wide temperature range and have low internal resistance, helping to improve the energy efficiency of electronic pens.

4. Low power consumption, long life The low power consumption feature reduces energy waste, while the long-life design reduces the frequency of replacement, providing users with a better experience.

5. Green and environmentally friendly, fast charging SDS series and SLX series supercapacitors support fast charging and can be charged to more than 95% of the initial capacity within 1 minute. At the same time, their environmentally friendly designs are more in line with today’s society’s needs for sustainable development.

6. Coating process, outer aluminum shell itself can be insulated This process not only ensures the reliability and high safety performance of the capacitor, but also makes the product easier to install and use in electronic pens.

Ultra small size Large capacity, wide temperature resistance, low internal resistance, low power consumption, long life, green and environmentally friendly, fast charging. It is mainly used in electronic pens and probe thermometers and can be charged to more than 95% of the initial capacity within 1 minute. Coating process, the outer aluminum shell can be insulated by itself, with high reliability and good safety performance.

Summarize

Shanghai Yongming Electronic Co., Ltd. is a capacitor manufacturing enterprise integrating design, research and development, production, sales, and service. The company was established in 2004. After almost 20 years of hard work, it has accumulated rich experience in independent research and development and production, trained a group of high-quality technical management teams, and formed a mature capacitor manufacturing process.

Our main products are diversified Aluminum Electrolytic Capacitors, which includes Aluminum Electrolytic Capacitor (Radial Leaded Type, SMD Type, Snap-In Type, and Screw Terminal Type), Conductive Polymer Aluminum Solid Electrolytic Capacitor, Conductive Polymer Hybrid Aluminum Solid Electrolytic Capacitor, MLPC, MLCC and EDLC.

Our product philosophy is: Ask YMIN for your all capacitor application. It is precisely because of this sentence that we YMIN constantly seek new partners in difficult situations, and our company’s products are developing faster and faster.We have products that are no inferior to those of our international counterparts, such as mlcc that can compete with murata, laminated capacitors and aluminum electrolytic capacitors that can compete with panasonic and nichicon.

Development History -2001: Shangyu Yongming Electronics Co., Ltd. was established in Shangyu, focusing on electrolytic capacitors for lighting power supplies. -2005: Renamed shanghai Yongming Electronics Co.Ltd. moved to Fengxian District, Shanghai, andlaunched miniaturized electrolytic capacitorsfor lighting power supplies. -2008: We are the first in the industry to introduce adedicated series of LED drive power supplies. -2010: We are the frst in the industry to introduce 9mm high-end, full-voltage high-end power supply products. -2011: Our company is the first to promote 600Vultra-high voltage horn type and bolt type -2012: We are the frst to introduce a dedicated series of 7mm high-end, full-voltage high-endpower supplies. -2013: We pioneered full-voltage,small-size SMDchip electrolytic capacitors. -2014: We are the first to introduce the smaller sizeLKM series and the outdoor power supplyultra-low temperature start-up LKZ series. -2015: We are the first to promote the Dc chargingpile series and the LKJ series for smart meters. -2016: Miniaturized Cw3s series for Dc charging piles. -2017: Renamed as Shanghai yongming ElectronicsCo. Ltd.. it launched thin,full-voltage, 5mmhigh-SMD SMD SMD VMM series, a full range ofsolid-state products, high-voltage for fastcharging sources, and ultra-small kc series. -2018: Large-capacity thin solid capacitor VPs serieslow-ESR large-capacity miniaturized NPG series, ultra-small diameter NPM series, solid-liquid hybrid capacitor. -2019: Laminated polymer solid capacitor, super capacitor,ultra-small size,low impedanceliquid chip V3W series. 135°c hiah temperature resistant liquid chip VKL(R)series. -2020: Lithium-ion secondary battery, high voltagehigh Q MLCC,3.95mmL liquid/solid state chipaluminum electrolytic capacitor. -2021: Launched supercapacitor business unit modules (horn type, lead type) -2022: Construction of the third phase of the factory started, adding 28,000 square meters of production area Laminated products launch ESR 3mΩ -2023： Launched new product line of conductive polymer tantalum electrolytic capacitors Liquid launches high capacity density products (KCM) suitable for gallium nitride

Business unit introduction

The Liquid Miniature Business Division has been involved in R&D and manufacturing since 2001. It has an experienced R&D and manufacturing team and continues to steadily produce a variety of high-quality miniaturized capacitors to meet customers’ innovative needs for capacitors. The Liquid Small Business Division has two types of packages: liquid chip aluminum electrolytic capacitors and liquid lead aluminum electrolytic capacitors. Its products have the advantages of miniaturization, high stability, high capacity, high voltage, high temperature resistance, low impedance, high ripple, and long life. It is widely used in new energy automotive electronics, high-power power supplies, smart lighting, gallium nitride fast charging, home appliances, photovoltaics and other industries.

The Liquid Large Business Division was established in 2009 and focuses on the R&D and manufacturing of horn-type and bolt-type aluminum electrolytic capacitors. Liquid large-scale aluminum electrolytic capacitors have the advantages of ultra-high voltage (16V~630V), ultra-low temperature, high stability, low leakage current, resistance to large ripple current, and long life. The products are widely used in photovoltaic inverters, charging piles, vehicle-mounted OBC, and outdoor Energy storage power supply, industrial frequency conversion and other application fields. We give full play to the advantages of “a professional team that integrates new product development, high-precision manufacturing, and application promotion”, and towards the goal of “let there be no difficult container for charging”, we are committed to satisfying the market with technological innovation and combining different applications of customers demand, carry out technology docking and manufacturing connection, provide customers with technical services and special product customization to meet customer needs.

The solid-solid-liquid mixing division was established in 2017. Relying on the technology and talents of Japanese brands, it focuses on new product development, high-precision manufacturing and application promotion. Through investment in domestic advanced manufacturing equipment and continuous technological upgrades and breakthroughs, A product technology system with core competitiveness has been formed. Now it has established two product lines: solid aluminum electrolytic capacitors and solid-liquid hybrid aluminum electrolytic capacitors. The products comply with multiple certifications such as AEC-Q200 and IATF16949. Among them, solid aluminum electrolytic capacitors have the advantages of miniaturization, large capacity, ultra-low ESR, low leakage, and high current impact resistance. The products are mainly used in gallium nitride PD fast charging, industrial control, artificial intelligence, IDC servers, military industry and other industries; Solid-liquid hybrid aluminum electrolytic capacitors have the advantages of high reliability, wide temperature stability, wide frequency stability, ultra-low ESR, earthquake resistance, and high current impact resistance. The products are mainly used in the new energy automotive electronics industry. The two major product lines have won the trust and high praise of many well-known domestic and foreign brand manufacturers for their reliable product quality and excellent product characteristics.

The Supercapacitor Division was established in 2017. It has gathered a professional team integrating new product development, high-precision manufacturing, and application promotion. It has made every effort to introduce high-quality foreign materials and process technologies, forming a highly matched product technology system. Now we have a comprehensive range of domestic and foreign supercapacitors: such as cylindrical lead type, horn type, button type, module type, SMD chip type, 3.8V lithium ion capacitor, etc. The products comply with State Grid certification, AEC-Q200, IATF16949, etc. With multiple certifications, it is widely used in industries such as smart three-meter (electricity meter, water meter, gas meter), automotive electronics (ETC, driving recorder), new energy (wind pitch, photovoltaic), military industry (tank emergency starting power supply), etc. With the rapid development of 5G technology and the intelligent Internet of Things market, the products of the Supercapacitor Division will continue to inject development momentum into smart life and bring users a better experience.

The solid-state laminated business unit has been involved in research and development since 2018 and started mass production in March 2020. It currently has a monthly production capacity of 6 million units. The laminated polymer solid aluminum electrolytic capacitor has the advantages of high voltage, large capacity, thin profile, ultra-low impedance, and resistance to large ripple current. Its ultra-low ESR and powerful filtering ability are cutting-edge achievements in the field of aluminum electrolytic capacitors and are used in Communications, military industry, Internet of Things, IDC servers, artificial intelligence and other terminals.

Since its establishment in 2019, the MLCC Division has always been committed to the research and development, manufacturing and application promotion of high-voltage MLCCs, fully benchmarking against Taiwanese and Japanese high-end products and technologies. Now it has X7R, NPO and other product series, with voltages from 1KV to 3KV, all of which are large-sized high-voltage products above 1206. They are widely used in adapters, switching power supplies, high-voltage power supplies, lighting devices and other products.

The Polymer Polymer Tantalum Capacitor Division was established in 2022. Compared with its peers, Yongming polymer tantalum capacitors have higher capacity, lower ESR and higher withstand voltage. Products are widely used in digital servers, PCs, ultra-thin chargers, automotive electronics, communications industries, base stations, switches, industrial power modules, military power supplies and other fields. Yongming polymer tantalum capacitors replace imported tantalum capacitors, which has broad prospects and is worth cultivating.

● Support the innovation and upgrading of customer products. ● Ensure the stable operation of customer products. ● Eliminate hidden dangers in the use of customer products. ● Guarantee the user experience of customer products.

Ask YMIN for your capacitor solutions.

01 Market prospects of forest fire prevention monitoring systems

As climate change leads to an increase in extreme weather around the world, governments and relevant departments of various countries are paying more and more attention to forest fire prevention work, and the need for efficient and intelligent forest fire prevention monitoring systems is becoming increasingly urgent. The market prospects of forest fire prevention monitoring systems have also shown significant growth and development potential in recent years.

02 YMIN supercapacitor SLM series

In forest fire monitoring systems, power supply stability and instantaneous power output capabilities are crucial. YMIN supercapacitor SLM series 7.6V 3300F provides efficient and reliable power support for the front-end monitoring equipment of the forest fire monitoring system with its unique capacitance characteristics.

a) Efficient energy storage and rapid response:

SLM series supercapacitors have great energy density and fast charge and discharge capabilities. They can be fully charged in a very short time and release large current instantly when necessary, ensuring the instant start-up and stable operation of fire monitoring equipment even under harsh conditions. .

b) Long life and maintenance-free: Thanks to its ultra-long cycle life, SLM series supercapacitors can achieve long-term and stable operation with almost zero maintenance in forest fire monitoring systems, reducing the overall system ownership cost and operation and maintenance difficulty.

c) Wide temperature working and environmental adaptability: The temperature difference in the forest environment is large. The SLM series supercapacitors can maintain stable operation in the temperature range of -40°C to 70°C and are not affected by severe cold or heat. They are especially suitable for power supply of equipment in harsh outdoor environments.

d) Low self-discharge and emergency backup: The capacitor has a low self-discharge rate. Even if it is not connected to the power supply for a long time, it can still retain enough power for initial fire alarm and emergency communication, effectively enhancing the real-time performance and reliability of the forest fire monitoring system.

e) Small size and easy integration: The SLM series supercapacitors adopts a compact design, and the 7.6V 3300F specification is particularly suitable for integration into miniaturized and lightweight equipment, making it easy to install at remote monitoring sites without taking up too much space.

03 Summary

SLM supercapacitors strictly follow high standards of safety requirements during the design and manufacturing process. Its internal structure and working principle determine that it will not cause thermal runaway under overcharge, short circuit or other abnormal conditions, fundamentally eliminating the risk of explosion and fire. It also implements the concept of green environmental protection, and the product materials have passed RoHS. , REACH and other strict environmental certifications, and has low temperature resistance and other characteristics. Even in outdoor conditions with severe temperature fluctuations and high humidity, it can still maintain stable operation without fear of the impact of harsh environments on its performance, reducing the risk of power failure. Possibility of causing forest fires. By selecting YMIN supercapacitors SLM series 7.6V 3300F products, it plays a vital role in the design of the forest fire monitoring system by taking into account multiple key indicators such as high efficiency, low loss, and long-term durability.

At the beginning of 2024, BYD launched a plug-in hybrid car for only about 70,000 yuan. Many car companies such as Nezha and Changan quickly followed suit and cut prices one after another. The price war continued throughout 2023 and became more and more intense.

As car prices drop, the pressure is also directly passed on to upstream parts suppliers. To borrow the recent words of Zhang Yong, CEO of Nezha Automobile, "pass the cold to everyone."

Recently, Xu Daquan, President of Bosch China, revealed in an interview that car companies will put more pressure on suppliers to reduce prices in 2024. "The requirements are all to reduce prices by 20%… In the past, the price reduction was usually 3%-5% per year." Under the extreme pressure, many auto parts suppliers were "sweating profusely" and shouted that they couldn't stand it. Bosch reluctantly said that the result of shutting down and not doing anything might be better than a 20% reduction; while Nidec and Freya made it clear that they would shift their focus from China to other markets.

However, it may not be a wise move to blindly ask suppliers to reduce prices. How can we not only reduce vehicle costs but also improve vehicle performance? I think there are 3 cost reduction paths:

Use new technologies to reduce the overall cost of the vehicle. For example, using 800V+SiC is expected to reduce the cost of the vehicle by 30,000 yuan;

Starting from other electronic control components, such as switching to film capacitor solutions, it is estimated that the cost of capacitors can be reduced by 4 times;

Actively introduce Chinese-made components from Yongming Electronics and other companies to further reduce vehicle manufacturing costs.

Below we will analyze them one by one so that you can see if they are reasonable.

SiC is expected to turn the tide and reduce costs and increase efficiency for new energy vehicles

Under the wave of price cuts for new energy vehicles, SiC semiconductors, as a key component of the main drive inverter, are also under great pressure. However, SiC will have multiple benefits in the future, including:

Taking up most of the market share of automotive IGBT modules, the market growth is huge;

Upstream substrates, chip production capacity and yield rates continue to improve, and SiC modules have certain room for price reduction;

New technologies can be used to reduce the usage and cost of SiC chips for electric drives.

At present, many car companies have achieved optimization of SiC main drive costs. For example, Nissan's new generation SiC electric drive system cost has been reduced by 30%, Tesla's main drive SiC has been reduced by 75%, and Xpeng's new electric drive has reduced carbonization by 30%. Silicon cost reduced by 50%…

More importantly, even under the current high price situation, SiC technology can "decompress" automobile companies and significantly reduce the cost of car manufacturing.

The general consensus in the industry is that new energy vehicles using SiC as main drive can increase vehicle battery life by 3%-10%. According to Bloomberg data, the industry average price of automotive power batteries in 2023 will be US$139/kWh. Based on this calculation, a 98kWh 800V model can save US$681-1362 (approximately RMB 4898-9797) in battery cost alone.

Li Xiang, chairman and CEO of Li Auto, said at the 2023 spring media communication conference that medium and large SUVs usually require 100kWh battery capacity to achieve a cruising range of 600 kilometers, but Li Xiang achieves the same through "800V platform + SiC technology + drag coefficient optimization" The cruising range only requires 80kWh, and the cost of a bicycle can be reduced by about 30,000 to 40,000 yuan.

Therefore, in the context of a car price war, the SiC supply chain must speed up cost optimization, and car companies and Tier1 should also speed up the introduction of SiC technology.

Thin film capacitors help silicon carbide enter the car, further alleviating cost anxiety

The largest cost of electric vehicles is the power battery (accounting for about 38%), and electronic control accounts for about 6%. According to Infineon's estimates, power semiconductors (IGBT/SiC, etc.) account for about 40% of the cost of electronic control, followed by DC-Link capacitors, which account for about 16% of the cost.

Therefore, in addition to SiC modules, low-cost DC-Link capacitor solutions are also beneficial to reducing electric drive and electronic control costs, and can alleviate the cost anxiety of car companies to a certain extent.

According to Nrel and Myavnet reports1, in a 30KW, 650V DC link, only 4 film capacitors need to be used. If replaced by electrolytic capacitors, 10 devices are required. It is estimated that the price of 4 film capacitors is lower than 10 aluminum electrolytic capacitors. The capacitance is more than 4 times lower and the volume is 15 times smaller.

In addition, according to Yongming Electronics, to give full play to the advantages of SiC, it is also necessary to match suitable capacitors for electronic control.

This is because new energy vehicles require higher power density and smaller size of motor controllers, and power modules are gradually shifting from traditional silicon-based IGBT modules to SiC MOSFET modules. However, the switching frequency of SiC modules is very high, with the highest switching frequency reaching 30 kHz. Excessively high peak current will increase the high-frequency component of the capacitor ripple current and cause more serious heating. Therefore, silicon carbide electronic control also puts forward more stringent conditions and higher requirements for the temperature rise of the capacitor at high frequencies. .

The resonant frequency of electrolytic capacitors is only 4kHz, which is not enough to absorb the current ripple of SiC electronic control. Moreover, because the electrolytic capacitor core itself generates high heat and has a lifespan that decays too quickly, and has poor corrosion resistance, it is difficult to use it in new energy vehicles. Popularize application. In comparison, film capacitors have better temperature characteristics, can withstand the same reverse voltage, have lower equivalent series inductance (ESL) and equivalent series resistance (ESR), longer service life and more High safety and reliability. For example, on DC-Link, electrolytic capacitors are one of the most likely places to cause failure of electronically controlled inverters. In contrast, the life of film capacitors is generally more than 10 years. Therefore, film capacitors are widely used in the field of new energy vehicles.

Data shows that the installed base of main drive electronic controls based on DC-Link film capacitors will reach 5.1117 million units in 2022, accounting for 88.7%, indicating that film capacitors have replaced electrolytic capacitors and become the mainstream of the electric drive market.

In addition to main drive electronic control, film capacitors have become increasingly popular in many fields such as vehicle power supplies and optical storage and charging. According to Tsinghua University estimates, the global demand for film capacitors will increase from 827 million in 2019 to 991 million in 2024.

Made in China further reduces the cost of capacitors, Yongming promotes the development of new energy with innovation

According to sources in the capacitor industry, the current single price of film capacitors used in new energy vehicles is about 200 yuan, and the average electronic control of a new energy vehicle requires 1.3 film capacitors, worth nearly 300 yuan. Film capacitors for vehicle OBC and other components The value is about 70 yuan, and the film capacitor in a car is worth nearly 400 yuan, which is also a considerable cost.

In response to the urgent cost reduction needs in fields such as new energy vehicles, Yongming Electronics recently launched the MDP and MDR series of DC support film capacitors. By using advanced manufacturing processes and high-quality materials, they can perfectly adapt to global power semiconductor leaders such as Infineon. The working conditions of Sheep's SiC MOSFET and silicon-based IGBT will further promote the new energy industry to achieve cost reduction and efficiency improvement.

It is understood that Yongming Electronics' MDP and MDR series film capacitors have several outstanding features: lower equivalent series resistance (ESR), higher rated voltage, lower leakage current and higher temperature stability.

First of all, Yongming Electronics' film capacitors adopt a low ESR design, which can effectively reduce the voltage stress during switching of SiC MOSFET and silicon-based IGBT, reduce the loss of the capacitor, and improve the efficiency of the entire system. At the same time, the capacitor also has a higher rated voltage, which can withstand higher voltage working conditions and ensure the stable operation of the system.

According to reports, the capacity ranges of Yongming Electronics' MDP and MDR series film capacitors are 5uF-150uF and 50uF-3000uF respectively, and the voltage ranges are 350V-1500V and 350V-2200V respectively.

Secondly, Yongming Electronics’ latest film capacitors have lower leakage current and higher temperature stability. Taking the electronic control of new energy vehicles as an example, its power is usually large, which causes the film capacitor to heat up more seriously, which will reduce the life and reliability of the film capacitor. To this end, Yongming's MDP and MDR series are based on high-quality materials and advanced manufacturing processes to design better heat dissipation structures for film capacitors, so that the capacitors can maintain stable performance in high-temperature environments and will not be damaged due to temperature rise. Cause the capacitance value to drop or fail. In addition, capacitors have a longer service life and can provide more reliable support for power electronic systems.

Third, Yongming Electronics’ MDP and MDR series capacitors also have smaller size and higher power density. Taking the 800V electric drive system as an example, the technical trend is to use SiC devices to reduce the size of passive components such as capacitors, thereby promoting the miniaturization of electronic controls. Yongming adopts innovative thin film manufacturing process technology, which not only improves the integration and efficiency of the entire system, but also reduces the volume and weight of the system, providing more possibilities for device portability and flexibility.

Taken together, Yongming Electronics' DC-Link film capacitor series products have a dv/dt tolerance increased by 30% and a lifespan increased by 30% compared to other film capacitors on the market. They can not only provide SiC/IGBT circuits Providing better reliability can also provide better cost-effectiveness and break the price barrier in the popular application of film capacitors.