An HVAC system is a complex machine, and as a complex machine, it is comprised of so many various kinds of parts and components. Some of these parts and components are easily overlooked. But there are also others that are instantly striking and are so hard to miss. A perfect example of this kind of HVAC component is the capacitor.

What Is A Capacitor?

Essentially speaking, a capacitor is a device that stores electrical energy in an electrical field. Previously known as a condenser or condensator, it is a passive electronic component with two terminals. The effect of a capacitor is known as capacitance. While some capacitance exists between any two electrical conductors in proximity in a circuit, a capacitor is a component that is designed to add capacitance to a circuit.

The physical form and construction of practical capacitors vary widely, and many types of capacitors are in common use today. Most capacitors contain at least two electrical conductors, often in the form of metallic plates or surfaces that are separated by a dielectric medium. A conductor may be a foil, thin film, sintered bead of metal, or an electrolyte. Meanwhile, the nonconducting dielectric acts to increase the capacitor’s charge capacity, and materials commonly used as dielectrics include glass, ceramic, plastic film, paper, and oxide layers. Capacitors are widely used as parts of electrical circuits in many common electrical devices, such as HVAC systems.

With all of that said, it is not a surprise that capacitors are required for HVAC systems. As a result, you, as an HVAC professional, have to make sure that the HVAC systems that you’re offering to your clients are equipped with high-quality capacitors. In order for you to be able to fulfill this responsibility, you must first need a reliable manufacturer or wholesale supplier of capacitors to work with you.

Fortunately, there are a lot of these manufacturers and wholesale suppliers out there. In particular, you can find a number of them in China alone. And so, if your HVAC business is based in China and you’re looking for a manufacturer or wholesale supplier of capacitors, here are ten companies that you can start looking up.

Top Capacitor Manufacturers/Wholesale Suppliers in China

Zhejiang Huizhong Industrial Trading


Founded in 1991, Zhejiang Huizhong Industrial Trading Co., Ltd. is a high-tech enterprise that specializes in manufacturing all kinds of metalized film AC/DC capacitors, aluminum electrolytic capacitors, power capacitors, motor capacitors, and so many more. With fixed assets reaching US$5,000,000, the company owns a special production line of an annual output of over 4,000,000 electronic containers.

Huizhong’s products have gained a remarkable reputation overseas due to their high-quality standards and consistent performance under all conditions. Additionally, they have also received various certifications, including UL, CE, CCEE, VDE, TUV, and ISO9001: 2000.

Anhui Mascotop Electronic


Established in 2006, Anhui Mascotop Electronic Co., Ltd. is a high-tech enterprise that specializes in the development of capacitors. Located in the Heli Park of the Ningguo Economic and Technological Development Zone, the company is committed to the development, production, and sales of metalized film capacitors and high-voltage capacitors for microwave ovens.

Mascotop’s primary products include metalized film capacitors, high-voltage capacitors, and other special capacitors. All these products have passed several certifications, including CQC, UL, CE, TUV, VDE, CSA, and other domestic and international certifications. Additionally, the products are sold all over the country as well as to other regions of the world, particularly Europe, North America, South America, the Middle East, Southeast Asia, Africa, and much more locations.

Shenzhen Topmay Electronic


Established in 1998, Shenzhen Topmay Electronic Co., Ltd. is an industrial enterprise that is mainly engaged in manufacturing, researching, developing, and dealing with various kinds of capacitors. As of right now, the company’s chief products are film capacitors, ceramic capacitors, tantalum capacitors, and aluminum electrolytic capacitors.

Topmay takes marketing as the key procedure of the company’s entire development. For that reason, they have attended many global electronics fairs that take place in Munich, Hong Kong, Shanghai, Guangzhou, and Shenzhen. They have also collaborated with several B2B websites, such as EbigChina,, GlobalSources, and many more. Currently, Topmay’s business primarily concentrates abroad, and they have sold their products to countries like the U.S.A., Canada, Brazil, Germany, England, France, Spain, Turkey, Russia, Poland, and more.

Zhejiang Yide Technology


Zhejiang Yide Technology Co., Ltd. is a company that specializes in R&D, production, and sales of power quality related products. The company is also a high-performance, high-reliability equipment supplier and integrated power quality solution provider for urban and rural smart energy distribution networks. Some of Yide’s products include YD series intelligent integrated power capacitors, YDK-APF active power filters, YDK-SVG static var generators, YDK-SPC three-phase unbalanced automatic adjustment device, and other power improvement equipment.

Yide’s products have passed the inspection of national authoritative organizations. They have also obtained various certifications, particularly CQC and CCC. As a result, the products have been widely used in the market.

Taizhou Huifeng Electron


Founded in 1993, Taizhou Huifeng Electronic Co., Ltd. is a company that specializes in manufacturing CD60 starting capacitors and CBB60 motor running capacitors, CBB65 air conditioner capacitors, CBB61 fan or generator capacitors, and CBB80 lighting capacitors.

In order to manufacture the best capacitors possible, Huifeng has advanced automatic winding machines, spraying machines, automatic testing machines, automatic welding machines, and dipping machines. They also have a group of well-trained marketing team to meet the demands of clients from at home and abroad. Moreover, the company also complies with ISO9001 Quality Control System standard to ensure product quality. They have also passed UL, VDE, CQC, CE, and RoHS certifications.

Seattle Electronics Manufacturing Group


Since 2005, Seattle Electronics Manufacturing Group (SEMG) has been one of the leading electronic component manufacturers located in Baoan District, Shenzhen City, China. In particular, the company specializes in designing, researching, developing, manufacturing, exporting, and processing professional aluminum electrolytic capacitors, magnet material, and PCBA.

SEMG covers over 23 series of various kinds of capacitors. The company also has a monthly output of up to 2 million pieces and an annual output of 800 million electrolytic capacitors. These capacitors are extensively used for power supply and LED drivers, ballasts, adapters, SMPS, and home appliances.

Anhui Safe Electronics 


A member of Green International Group, Anhui Safe Electronics Co., Ltd. is an enterprise that mainly deals with AC motor capacitors, DC link capacitors, BOPP film (polypropylene film), MPP film (metalized film), inkjet PVC ID cards, polyester heat transfer film, PET film, and other related products.

Safe Electronics has been in the production of AC motor capacitors since 1999. Since the foundation of the company, they have imported high-end slitters, large-scale high-velocity winding machines, metal-spraying machines, automatic lines, automatic test lines, and other advanced lines from Japan, Italy, and Switzerland. As a result, the products are suitable for diversified kinds of domestic and overseas prestigious-branded air conditioners, refrigerators, compressors, washers, illuminators, and other industries.

Jinan Retek Industries


Jinan Retek Industries Inc. is a professional supplier in China that primarily deals in refrigeration parts. To be more specific, the company’s primary products include wire tube condensers, deep freezer condensers, refrigerator condensers, refrigerator evaporators, CO2 condensers, and much more. Currently, Retek has three factories in China, manufacturing different kinds of refrigeration parts. The first one mainly manufactures condensers and evaporators. The second one manufactures copper filter driers, accumulators, and access valves. And the third one manufactures insulation tubes.

As of today, Retek sells their products mainly to refrigerator, freezer, and water cooler factories in more than 15 countries and areas, including China, Pakistan, Italy, the U.S.A., and Russia.

Shantian Generator Parts 


Shantian Generator Parts Co., Ltd. is a professional supplier of generator AVR in China. In particular, the company focuses on providing a complete range of electric generators, including alternator AVRs, Japan generator AVRs, diesel gasoline generator parts, motorcycle parts, and much more.

Shantian Generator Parts takes pride in their superior material purchasing system, their staff of highly experienced engineers, and advanced manufacturing and testing facilities. As a result, they are able to provide high-quality electric generators as well as excellent service for their customers. These products have been applied in numerous industries, such as military, railway, watercraft, communications, oil field, traffic, mining, buildings, and refrigerated containers. Additionally, they have also been sold to many countries and regions in Europe, America, Southeast Asia, the Middle East, and South Africa.

Tongling Tongfei Technology


Tongling Tongfei Technology Co., Ltd. is a development, design, manufacture, and market integrated professional manufacturer of capacitors. Some of the company’s primary products include metalized film for capacitor use, CBB series AC motor capacitors, SFPEC series power electronics capacitors, capacitors accessories, blank inkjet printable PVC card, and compatible PVC card tray.

Tongfei is fully equipped with professional capacitor manufacturing equipment and testing instruments, such as coating machines, high-precision metalized film slitters, imported rod automatic winding machines, automatic spraying machines, vacuum packaging equipment, special capacitor voltage measurement, and many more. The company sells their products to their clients within China as well as overseas.

Takeaway: Looking for a Manufacturer of Capacitors in China?

A capacitor is a particular kind of HVAC component, and it is one of the most crucial. Simply put, a capacitor is a device that stores electrical energy in an electrical field. And so, they are widely used as parts of electrical circuits in many common electrical devices, such as HVAC systems.

Because of this, it is your responsibility as an HVAC professional to make sure that the HVAC systems you’re selling are equipped with the best capacitors. In order to do this, you need to find a manufacturer or wholesale supplier of capacitors that you can rely on.

As your luck would have it, there are so many of these manufacturers and wholesale suppliers out there. China alone has a number of them. That is why if your business is based in China and you’re in dire need of a capacitor manufacturer, you’re not going to have a difficult time finding one.

However, even though that is the case, it still does seem a little intimidating to start your search because of the sheer number of manufacturers and wholesalers available. And so, you need a starting point. This list can then be your starting point — the one that will give you a head start in your search.

The ten companies mentioned above are only some of the popular manufacturers and suppliers of capacitors in China. There are obviously hundreds of them out there. But to help you get started, you can begin your search with these ten companies. After all, they are already well-reputed in the HVACR industry, so you know you can trust them. Basically, you can pick any of the companies listed above, and you can expect that you’re going to be in safe and reliable hands.



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