What are the manufacturers of polymer capacitor brands?

Polymer capacitors, as a new generation of high-performance capacitors, are widely used in consumer electronics, automotive electronics, and industrial fields due to their low ESR, high ripple current tolerance, and high reliability. The following are polymer capacitor brand manufacturers based on their technological strength, market share, and industry reputation, covering leading international and domestic enterprises:
1、 Internationally renowned brand: technology driven, occupying the high-end market
AVX (USA)
Technical advantage: Global leader in polymer tantalum capacitors, with a market share of over 40%. Its product adopts the "conductive polymer+manganese dioxide" composite electrode technology, with an ESR as low as 5m Ω and a leakage current of<1 μ A.
Application scenarios: Smartphones, 5G base stations, medical equipment.
Representative series: TCJ series surface mount polymer tantalum capacitors, with a minimum size of 0603 (0.6mm × 0.3mm), supporting high-frequency decoupling.
KEMET (Jimei, USA)
Technical advantages: Introducing ultra-low ESR polymer aluminum electrolytic capacitors (such as T598 series) with ESR values as low as 3m Ω and ripple current tolerance of 5A (100kHz).
Application scenarios: electric vehicle inverters, data center power supplies, aerospace.
Core product: A700 series polymer tantalum capacitors, with a working temperature range of -55 ° C to+125 ° C, certified by AEC-Q200 automotive grade.
Panasonic (Japan)
Technical advantages: Developed SP Cap series polymer aluminum electrolytic capacitors, with a 50% reduction in volume compared to traditional aluminum electrolysis and a leakage current of<0.5 μ A.
Application scenarios: laptops, drones, high-end audio systems.
Data support: The rated voltage covers 4V~50V, with a lifespan of over 10000 hours (105 ° C).
Vishay (Vishay, USA)
Technical advantage: We provide ultra-thin polymer tantalum capacitors (such as PTCA series) with a thickness of only 0.8mm, suitable for high-density PCB layout.
Application scenarios: Wearable devices, IoT modules, precision instruments.
Certification endorsement: Complies with MIL-STD-202G military environmental testing standards.
TDK (Japan)
Technical advantage: We have launched the CGA series polymer aluminum electrolytic capacitors, which adopt a "layered structure" design and have an ESR as low as 2m Ω, suitable for high-frequency switching power supplies.
Application scenarios: Photovoltaic inverters, fast charging modules for electric vehicles, 5G base station power supply.
Market position: Ranked among the top three in the global market share of polymer capacitors in the new energy sector.
2、 Domestic leading enterprise: outstanding cost-effectiveness, rising new energy track
Aishi Group (Hunan, China)
Technical strength: The leading domestic polymer aluminum electrolytic capacitor, with an annual output of 1 billion capacitors and 5000 tons of electrode foil. The product has passed TS16949/ISO9001 certification, with ESR ≤ 10m Ω and leakage current<2 μ A.
Application scenarios: Xiaomi, OPPO mobile fast charging module, BYD new energy vehicles.
Market position: The global market share of consumer electronics polymer capacitors exceeds 15%.
Jianghai Corporation (Jiangsu, China)
Technological breakthrough: Dark horse in the new energy market, with a 40% increase in sales of polymer capacitors in 2022. Its products have passed AEC-Q200 certification and have a lifespan of over 50000 hours at 85 ° C, suitable for leading enterprises such as Huichuan Technology and Sunac Power.
Customer case: Provided customized polymer capacitor solutions for Tesla Model 3, supporting 400V high-voltage platforms.
Faratronic, Xiamen, China
Technical advantage: Focusing on the field of thin film capacitors, its polymer DC-LINK capacitors have passed EN50121-3-2 electromagnetic compatibility testing in the field of rail transit, with a capacity deviation of ≤± 1%.
Application scenarios: high-speed rail traction system, wind power converter, smart grid.
Fenghua High Tech (FH, Guangdong, China)
Technical layout: We provide a full range of polymer tantalum capacitors, covering a capacity range of 0.1 μ F to 1000 μ F, with an ESR as low as 8m Ω.
Application scenarios: 5G communication base stations, consumer electronics fast charging, IoT devices.
3、 Emerging brands and benchmarks in segmented fields
WIMA (Germany)
Technical features: A benchmark brand in the audio field, the MKP series polymer capacitor has an accuracy of ± 1% and a high-frequency response distortion rate of<0.05%.
Application scenarios: high-end audio systems, professional recording equipment.
Yageo (Taiwan, China)
Technical Strength: A leading global manufacturer of passive components, providing one-stop services for polymer capacitors. Its products have passed the IATF 16949 certification for automotive grade, with a temperature range of -55 ° C to+150 ° C.
Application scenarios: automotive electronics, industrial control, security monitoring.
Rubycon (Ruby, Japan)
Technical advantages: Mainly aluminum electrolytic capacitors and plastic film capacitors, polymer capacitors have a lifespan of 20000 hours (105 ° C) and a leakage current of<0.01CV.
Application scenarios: high-end DIY motherboards, medical equipment power supplies.
4、 Selection suggestions
High frequency/high temperature scenarios: prioritize AVX, KEMET, or TDK, pay attention to ESR, ripple current tolerance, and temperature coefficient.
In the field of new energy, Aihua Group and Jianghai Co., Ltd. are the preferred cost-effective options, verifying AEC-Q200 certification and impulse voltage resistance test data.
Consumer electronics: WIMA and Ruby provide high-precision audio grade capacitors, while Guoju offers miniaturized SMD packaging.
By cross comparing technical parameters, customer cases, and third-party testing reports, brands and requirements can be accurately matched to avoid system failures caused by improper selection.