We have nearly 30 years of capacitor development experiences
We have nearly 30 years of capacitor development experiences

Specializing in the design, research and development, manufacturing, and sales all kinds of aluminum electrolytic capacitors

ABOUT Sanxi +
Lean, innovative, inclusive, and win-win
Lean, innovative, inclusive, and win-win

Strive to provide customers with high-quality products and sincere services, and continuously create value for them

ABOUT Sanxi +
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About Sanxi Electronics

About Sanxi

Create value Surmount,pursuit perfection

Professional research and development, production of various types of capacitors for 30 years, intention to serve global customers

1995 Year

Esteblished from

200 +

Employees

30 +

R & D Engineers

12 billion +

Annual Production

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Sanxi's PRODUCTS

Please correspond to the products your company needs. If you do not find what you need, please contact us for a customized solution.

Lead type

Lead type

Leaded Aluminum Electrolytic Capacitors

Capacitance and voltage range from low to high, widely distributed.

Can be applied to lighting, fast charging, power supply and other consumer electronics products.

Product Features:

Size：φ5-φ22

Voltage：6.3V-500V

Capacity：0.33uF-4700UF

Lifespan: Up to 15000hours(105℃) or 3000hours(130℃)

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Surface Mount

Surface Mount

Liquid SMD Aluminum Electrolytic Capacitors

Capacitance and voltage range from low to high, widely distributed.

Can be applied to lighting and consumer electronics products.

Product Features:

Size：φ5-φ22

Voltage：6.3V-450V

Capacity：0.33uF-1000UF

Lifespan: Up to 15000hours(105℃) or 3000hours(130℃)

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Snap in

Snap in

Solder Pin and Lug Type Aluminum Electrolytic Capacitors

Large size, high capacitance, high voltage.

Mainly used in industrial automation, new energy, power supply, inverter and other industries.

Product Features:

Size：φ22-φ45

Voltage：10V-550V

Capacity：47uF-56000UF

Lifespan: Up to 7000hours(105℃)

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Screw type

Screw type

Screw Type Aluminum Electrolytic Capacitors

Large capacitors with high capacitance and high voltage.

Mainly used in industrial power supply and new energy fields.

Product Features:

Size：φ40-φ100

Voltage：10V-600V

Capacity：1000uF-68000UF

Lifespan: up to 5000hours(105℃)

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Solid type

Solid type

Solid polymer aluminum electrolytic capacitor

High capacitance, low ESR, excellent frequency characteristics.

Used in consumer electronics and lighting products.

Product Features:

Size：φ4-φ16

Voltage：2.5V-100V

Capacity：4.7uF-3300UF

ESR：as low as 5mΩ

Lifespan: Up to 10000hours(105℃)

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Products details →

Application fields

Strive to provide customers with high-quality products and sincere services, and continuously create value for customers.

Consumer Electronics

Consumer Electronics

Lighting, Smart office, PD fast charging

Industrial Automation

Industrial Automation

Servo system, Inverter, UPS uninterruptible power supply

New Energy

New Energy

Photovoltaic inverter; Energy storage

Power

Power

Switching power supply, Charger, Controller

Other Apps

Other Apps

Beauty equipment, Car multimedia, Charging pile

Capacitor knowledge

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Common sense information

Electric container security operation

During the operation of the capacitor, the current should not exceed 1.3 times the rated current of the capacitor for a long time, and the voltage should not exceed 1.1 times the rated voltage of the capacitor for a long time. The ambient temperature used by the capacitor shall not exceed the limits listed in Table 6---11. The temperature of the capacitor shell shall not exceed the specified value of the manufacturer (generally 60 or 65). The contacts of the capacitor should be kept in good condition, and there should be no signs of looseness or overheating; the bushing should be clean and there should be no traces of discharge; the shell should not have obvious deformation, and there should be no traces of oil leakage. The switchgear, protective device and discharge device of the capacitor should be kept in good condition.

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16

Common sense information

Principle and Application of Power Capacitor Compensation

Power capacitors are commonly used equipment to improve power quality, reduce power loss, and improve the utilization of power supply equipment. The danger of explosion of capacitors during operation and the risk of residual charges in capacitors after power failure are safety issues that must be paid attention to. In the power system, the most convenient way to improve the power factor is to connect capacitors in parallel to generate the leading capacitor current to offset the lagging inductor current, and reduce the so-called reactive current that does not do work to a certain range.  Power capacitors for compensation are either installed on the high-voltage side or on the low-voltage side; they can be installed centrally or decentralized.

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Common sense information

How to judge the quality of capacitors

Common faults of capacitors are: open circuit, short circuit, leakage and capacitance reduction. For capacitors with large capacity, the pointer multimeter resistance block can be used to determine the quality of the capacitor and conduct qualitative analysis of its quality.Multimeter gear selection principle: large capacity, small gear; Small capacity and large gear. Typical capacity greater than 47 μF select R´ 100 stops, capacity 1~47 μF selected R´ 1 K stop, capacity less than 1 μF select R´ 10 K gear.

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Ministry of Industry and Information Technology: Production of new energy vehicles may exceed 1.5 million this year

Ministry of Industry and Information Technology: Production of new energy vehicles may exceed 1.5 million this year

China News Network on April 4 Talking about the production and sales of new energy vehicles in 23, Wen Ku, spokesperson of the Ministry of Industry and Information Technology and director of the Department of Information and Communication Development, said on the 2019rd that China's new energy vehicle production and sales in the first quarter completed 23,30 and 4,29 units, respectively, and the production and sales growth rate reached 9.102% and 7.109% year-on-year, respectively. It is expected that the production of new energy vehicles this year may exceed 7.150 million units. On January 1, the 10 (first) Haikou International New Energy Vehicle Exhibition was held in Haikou. The picture shows a domestic new energy vehicle brand NIO exhibiting an EVE driverless and pure electric drive concept car

04-25

2023-06-12

Capacitor charging and discharging

(1) The process of charging.The process of charging a capacitor (storing charge and electrical energy) is called charging. Connect one plate of the capacitor to the positive pole of the power supply, and the other plate to the negative pole of the power supply, and the two plates are each carried with an equal amount of dissimilar charge. After charging, there is an electric field between the two plates of the capacitor, and the charging process stores the electrical energy obtained from the power supply in the capacitor.

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2019-04-25

China's semiconductor industry is booming again, Semipower will focus on the field of new energy automotive electronics

Although China's power semiconductor devices started late, the market size has grown rapidly. According to the data from Zhongyan Puhua Industrial Research Institute, it has grown from 190.5 billion yuan in 2015 to 229.7 billion yuan in 2017, with an average annual compound growth rate of 8.53%, and has become one of the largest power semiconductor markets in the world.

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