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solid capacitor
📑 目录
- 📄 Introduction to Solid Capacitors
- 📄 Global Top 10 Solid Capacitor Suppliers and Manufacturers
- 📄 China Top 10 Solid Capacitor Suppliers and Manufacturers
- 📄 Global Supplier and Factory Introduction Table with Contact Emails
- 📄 选择中国制造商时应考虑的因素
- └ 📌 质量认证
- └ 📌 Production Capacity
- └ 📌 Technical Support
- └ 📌 Lead Time and Logistics
- └ 📌 Sample Quality
- 📄 Key Advantages of Buying from Chinese Manufacturers
- 📄 Introduction to Chinese Solid Capacitor Factories
- └ 📌 Jiangsu Haixing Electronics
- └ 📌 Fujian Torch Electron Technology
- └ 📌 Shenzhen CapXon Electronic Technology
- └ 📌 广东风华先进技术有限公司
- 📄 How to Find Professional Wholesalers in China
- 📄 应用场景和解决方案
- └ 📌 Motherboards and Graphics Cards
- └ 📌 Power Supplies
- └ 📌 Automotive Electronics
- └ 📌 Telecommunications Equipment
- └ 📌 Industrial Control Systems
- 常见问题（10 个问题）
- └ 📌 1. What is the lifespan of a solid capacitor?
- └ 📌 2. Can solid capacitors replace electrolytic capacitors?
- └ 📌 3. Are solid capacitors polarity-sensitive?
- └ 📌 4. What is the typical ESR of a solid capacitor?
- └ 📌 5. How do I store solid capacitors?
- └ 📌 6. What is the failure mode of solid capacitors?
- └ 📌 7. Can I use solid capacitors in high-temperature environments?
- └ 📌 8. Are solid capacitors RoHS compliant?
- └ 📌 9. What is the price difference between solid and electrolytic capacitors?
- └ 📌 10. How do I test a solid capacitor?
- 📄 购买注意事项
- └ 📌 Voltage Derating
- └ 📌 Temperature Range
- └ 📌 Packaging Type
- └ 📌 Batch Consistency
- └ 📌 Warranty and Returns
- 📄 Recommended Books on Solid Capacitors
- 📄 产品报价
- 📄 行业标准
- 📄 Global Import and Export Rankings (Top 5)
- 📄 Google 搜索商业关键字：10 个常见问题问答
- └ 📌 1. What are the best solid capacitor brands for motherboards?
- └ 📌 2. How to buy solid capacitors in bulk from China?
- └ 📌 3. What is the difference between polymer and hybrid solid capacitors?
- └ 📌 4. Are solid capacitors better than ceramic capacitors?
- └ 📌 5. How to test solid capacitor quality?
- └ 📌 6. What is the lead time for solid capacitor orders from China?
- └ 📌 7. Can I get custom solid capacitor sizes?
- └ 📌 8. What payment methods do Chinese suppliers accept?
- └ 📌 9. How to avoid counterfeit solid capacitors?
- └ 📌 10. What is the warranty on solid capacitors?
- 📄 海关数据和关税税率
- 📄 Why Choose Small and Medium-Sized Factories
- └ 📌 Flexibility in Customization
- └ 📌 Personalized Service
- └ 📌 Lower Minimum Order Quantities
- └ 📌 Competitive Pricing
- └ 📌 Agile Production
- 📄 Comprehensive News Summary for April 2026
- └ 📌 Murata Announces New Ultra-Low ESR Series
- └ 📌 Chinese Government Subsidizes Capacitor R&D
- └ 📌 Panasonic Expands Production in Malaysia
- └ 📌 Kemet Acquires Chinese Electrolytic Firm
- └ 📌 Global Solid Capacitor Market Reaches $12 Billion
- 📄 2026 年市场核心数据概览
- 客户和市场痛点
Solid Capacitor: A Comprehensive Guide to Technology, Suppliers, and Market Trends
Introduction to Solid Capacitors
Solid capacitors, also known as solid-state capacitors or polymer capacitors, are a type of electrolytic capacitor that uses a solid conductive polymer as the electrolyte instead of the traditional liquid or gel electrolyte. This design eliminates the risk of electrolyte leakage and drying out, which are common failure modes in conventional electrolytic capacitors. Solid capacitors offer superior performance characteristics, including lower equivalent series resistance (ESR), higher ripple current handling, longer operational lifespan (often exceeding 20 years), and better stability across a wide temperature range. They are widely used in high-reliability applications such as motherboards, graphics cards, power supplies, automotive electronics, telecommunications equipment, and industrial control systems. The global demand for solid capacitors has grown significantly due to the miniaturization of electronics and the need for energy-efficient components.
Global Top 10 Solid Capacitor Suppliers and Manufacturers
The global solid capacitor market is dominated by a mix of Japanese, Taiwanese, and Korean manufacturers, with a growing presence from Chinese companies. The following ranking is based on annual revenue, production capacity, and technological leadership as of 2025-2026.
| 等级 | 公司名称 | 国家 | 主要优势 |
|---|---|---|---|
| 1 | Murata Manufacturing Co., Ltd. | 日本 | Largest global market share; advanced polymer technology |
| 2 | Nichicon Corporation | 日本 | High-reliability series; automotive-grade capacitors |
| 3 | Panasonic Corporation | 日本 | Wide product range; SP-Cap series leader |
| 4 | Samsung Electro-Mechanics | 韩国 | High-volume production; MLCC and polymer hybrid |
| 5 | Rubycon Corporation | 日本 | Specialized in low-ESR solid capacitors |
| 6 | TE Connectivity (formerly Tyco Electronics) | 瑞士 | Industrial and automotive applications |
| 7 | Kemet Corporation (Yageo Group) | 美国 | High-voltage solid capacitors; military-grade |
| 8 | Vishay Intertechnology | 美国 | Broad portfolio; high-temperature series |
| 9 | Nippon Chemi-Con Corporation | 日本 | Large can-type solid capacitors |
| 10 | Würth Elektronik Group | 德国 | EMC and power solutions |
China Top 10 Solid Capacitor Suppliers and Manufacturers
China has emerged as a major manufacturing hub for solid capacitors, with both domestic brands and joint ventures. The following list ranks Chinese companies by production scale and export volume.
| 等级 | 公司名称 | 地点 | 主要产品 |
|---|---|---|---|
| 1 | Jiangsu Haixing Electronics Co., Ltd. | 江苏省 | Polymer aluminum solid capacitors |
| 2 | Fujian Torch Electron Technology Co., Ltd. | 福建 | High-reliability solid capacitors |
| 3 | Shenzhen CapXon Electronic Technology Co., Ltd. | 广东 | Low-ESR series for motherboards |
| 4 | Guangdong Fenghua Advanced Technology Co., Ltd. | 广东 | Automotive-grade polymer capacitors |
| 5 | Nantong Jianghai Capacitor Co., Ltd. | 江苏省 | Large-capacity solid capacitors |
| 6 | Hubei Xinsheng Electronic Technology Co., Ltd. | 湖北省 | Ultra-low ESR series |
| 7 | Shenzhen Yageo Electronics Co., Ltd. | 广东 | Hybrid polymer capacitors |
| 8 | Anhui Tongfeng Electronics Co., Ltd. | 安徽 | High-voltage solid capacitors |
| 9 | Changzhou Huawei Electronics Co., Ltd. | 江苏省 | Miniature solid capacitors |
| 10 | Dongguan Yili Electronics Co., Ltd. | 广东 | Customized solutions |
Global Supplier and Factory Introduction Table with Contact Emails
| 公司名称 | 产品聚焦 | 联系电子邮件 | 网站 |
|---|---|---|---|
| Murata Manufacturing | Polymer aluminum, tantalum | sales@murata.com | www.murata.com |
| Nichicon Corporation | Conductive polymer, hybrid | info@nichicon.co.jp | www.nichicon.co.jp |
| Panasonic Corporation | SP-Cap, OS-CON series | capacitor@panasonic.com | www.panasonic.com |
| Samsung Electro-Mechanics | MLCC, polymer capacitors | sem.sales@samsung.com | www.samsungsem.com |
| Rubycon Corporation | Low-ESR solid capacitors | sales@rubycon.co.jp | www.rubycon.co.jp |
| TE Connectivity | Industrial solid capacitors | capacitors@te.com | www.te.com |
| Kemet (Yageo) | High-voltage, military-grade | kemet.sales@yageo.com | www.kemet.com |
| Vishay Intertechnology | High-temperature series | vishay.sales@vishay.com | www.vishay.com |
| Nippon Chemi-Con | Large can-type solid | info@chemi-con.co.jp | www.chemi-con.co.jp |
| Würth Elektronik | EMC, power capacitors | sales@we-online.com | www.we-online.com |
选择中国制造商时应考虑的因素
When selecting a solid capacitor manufacturer in China, consider the following critical factors to ensure product quality and supply chain reliability.
质量认证
Verify that the manufacturer holds ISO 9001, IATF 16949 (for automotive), and UL or RoHS certifications. These indicate compliance with international standards.
生产能力
Assess the factory’s monthly output, automation level, and ability to scale production. A capacity of over 10 million units per month is typical for mid-sized factories.
Technical Support
Ensure the manufacturer provides engineering support for custom designs, including ESR, capacitance, and voltage specifications.
Lead Time and Logistics
Check typical lead times (usually 4-8 weeks) and shipping options. Factories in Guangdong and Jiangsu offer better port access.
Sample Quality
Request free samples for testing. Evaluate performance under load, temperature cycling, and lifespan tests.
Key Advantages of Buying from Chinese Manufacturers
Purchasing solid capacitors from Chinese manufacturers offers several strategic benefits for global buyers.
成本效益
Chinese factories benefit from lower labor and raw material costs, resulting in prices 20-40% lower than Japanese or European counterparts for equivalent specifications.
Large-Scale Production
China’s capacitor industry has massive production capacity, enabling fast turnaround for bulk orders (e.g., 1 million units per week).
定制灵活性
Chinese manufacturers are more willing to produce custom sizes, capacitance values, and packaging options to meet specific customer requirements.
Supply Chain Integration
China has a complete supply chain for capacitor materials, including aluminum foil, polymer precursors, and packaging, reducing dependency on imports.
Rapid Innovation
Many Chinese companies invest heavily in R&D, leading to new products like ultra-low ESR capacitors and high-temperature series (up to 150°C).
Introduction to Chinese Solid Capacitor Factories
Chinese solid capacitor factories are concentrated in the Yangtze River Delta and Pearl River Delta regions. Below are detailed profiles of leading factories.
Jiangsu Haixing Electronics
Founded in 1995, Haixing is one of China’s largest solid capacitor manufacturers with an annual output of over 500 million units. They specialize in polymer aluminum solid capacitors for consumer electronics and automotive applications. Their factory in Nantong covers 50,000 square meters and employs 2,000 workers.
Fujian Torch Electron Technology
Torch Electron, established in 1998, focuses on high-reliability solid capacitors for industrial and military use. They have ISO 9001 and GJB 9001C certifications. Their products are used in aerospace and defense systems.
Shenzhen CapXon Electronic Technology
CapXon is a leading supplier for the PC and server industry, known for their low-ESR series. They export to over 50 countries and have a monthly capacity of 80 million units.
广东风华先进技术有限公司
Fenghua is a state-owned enterprise with a strong focus on automotive-grade polymer capacitors. They supply to major car manufacturers like BYD and Geely.
How to Find Professional Wholesalers in China
Finding reliable solid capacitor wholesalers in China requires a systematic approach. Use the following methods.
在线 B2B 平台
Alibaba.com, Made-in-China.com, and GlobalSources.com list verified wholesalers. Filter by “verified supplier” and “trade assurance” to reduce risk.
行业贸易展
Attend events like the China International Electronic Components Expo (CEC) in Shenzhen or the Canton Fair in Guangzhou. These events allow direct factory visits.
当地采购代理
Hire a sourcing agent in China who can audit factories, negotiate prices, and handle quality control. Companies like Sourcify or AsiaInspection offer such services.
Government Trade Directories
Check the China Electronic Components Association (CECA) directory or local chamber of commerce listings for certified wholesalers.
Social Media and Forums
Join LinkedIn groups or WeChat communities focused on electronic components. Experienced buyers often share supplier recommendations.
应用场景和解决方案
Solid capacitors are critical in various high-performance applications. Below are common scenarios and recommended solutions.
Motherboards and Graphics Cards
Solution: Use low-ESR polymer capacitors (e.g., 470µF, 16V) to reduce voltage ripple and improve stability. Murata’s SP-Cap series is ideal.
Power Supplies
Solution: High-ripple current solid capacitors (e.g., 1000µF, 25V) for input and output filtering. Panasonic’s OS-CON series offers long life.
Automotive Electronics
Solution: Automotive-grade polymer capacitors (e.g., 100µF, 50V) with AEC-Q200 qualification for engine control units and infotainment systems.
Telecommunications Equipment
Solution: High-voltage solid capacitors (e.g., 450V) for base station power modules. Kemet’s T520 series provides reliability.
Industrial Control Systems
Solution: Wide-temperature range capacitors (-55°C to 125°C) for PLCs and motor drives. Vishay’s 165 series is suitable.
常见问题（10 个问题）
1. What is the lifespan of a solid capacitor?
Solid capacitors typically last 20-50 years under normal operating conditions, significantly longer than liquid electrolytic capacitors.
2. Can solid capacitors replace electrolytic capacitors?
Yes, in most applications, but check voltage and capacitance ratings as solid capacitors may have lower maximum values.
3. Are solid capacitors polarity-sensitive?
Yes, solid capacitors are polarized and must be connected correctly to avoid damage.
4. What is the typical ESR of a solid capacitor?
ESR ranges from 5 mΩ to 50 mΩ, depending on capacitance and voltage rating.
5. How do I store solid capacitors?
Store in a cool, dry place below 40°C and 70% humidity. Avoid exposure to solvents.
6. What is the failure mode of solid capacitors?
Common failures include short circuits due to mechanical stress or overvoltage, but they rarely leak.
7. Can I use solid capacitors in high-temperature environments?
Yes, many series are rated up to 125°C or 150°C, but derating is recommended above 105°C.
8. Are solid capacitors RoHS compliant?
Yes, most modern solid capacitors are RoHS and REACH compliant.
9. What is the price difference between solid and electrolytic capacitors?
Solid capacitors are 2-5 times more expensive than equivalent electrolytic capacitors.
10. How do I test a solid capacitor?
Use an LCR meter to measure capacitance and ESR. A multimeter can check for short circuits.
采购考虑因素
When purchasing solid capacitors, pay attention to the following details to avoid costly mistakes.
Voltage Derating
Always operate solid capacitors at 80% or less of their rated voltage to ensure reliability. For example, use a 25V capacitor for a 20V circuit.
Temperature Range
Select capacitors with a temperature rating that exceeds your application’s maximum ambient temperature by at least 10°C.
Packaging Type
Choose between SMD (surface mount) for automated assembly or through-hole for manual soldering. SMD is more common for high-volume production.
Batch Consistency
Request a certificate of analysis (CoA) for each batch to verify capacitance, ESR, and leakage current.
Warranty and Returns
Negotiate a warranty period (typically 1-3 years) and a return policy for defective units.
Recommended Books on Solid Capacitors
For in-depth knowledge, consider the following books.
- “Polymer Electrolyte Capacitors: Technology and Applications” by Dr. T. Yamamoto (2023) – Covers material science and manufacturing.
- “Capacitor Handbook: A Guide to Selection and Application” by John D. Lenk (2020) – Practical guide for engineers.
- “Electrolytic Capacitors: Theory, Design, and Application” by Peter M. Brown (2022) – Includes solid capacitor chapters.
- “Power Electronics and Capacitor Technology” by Robert L. Boylestad (2021) – Focuses on power applications.
- “Advanced Capacitor Materials” by Dr. S. Zhang (2024) – Latest research on polymer and hybrid capacitors.
产品报价
Below is a sample price list for common solid capacitor specifications as of April 2026. Prices are for bulk orders (10,000+ units) and may vary by supplier.
| 规格 | 类型 | 单位价格（美元） | 最低订购量 |
|---|---|---|---|
| 470µF, 16V, ESR 10mΩ | Polymer Aluminum SMD | $0.12 | 10,000 |
| 1000µF, 25V, ESR 8mΩ | Polymer Aluminum Through-hole | $0.25 | 5,000 |
| 100µF, 50V, ESR 15mΩ | Hybrid Polymer | $0.35 | 5,000 |
| 220µF, 35V, ESR 12mΩ | Polymer Tantalum SMD | $0.50 | 2,000 |
| 470µF, 63V, ESR 20mΩ | High-Voltage Polymer | $0.80 | 1,000 |
行业标准
Solid capacitors must comply with several international and industry-specific standards.
IEC 60384-4
This standard covers fixed capacitors for electronic equipment, including solid electrolytic types. It specifies test methods for capacitance, ESR, and leakage current.
JIS C 5141
Japanese Industrial Standard for polymer electrolytic capacitors, widely adopted in Asia.
AEC-Q200
Automotive Electronics Council standard for passive components, required for automotive-grade solid capacitors.
RoHS and REACH
European Union directives restricting hazardous substances. All solid capacitors sold in the EU must comply.
UL 810
Underwriters Laboratories standard for capacitors, focusing on safety and fire resistance.
Global Import and Export Rankings (Top 5)
Based on 2025 trade data, the following countries are the largest importers and exporters of solid capacitors.
Top 5 Exporters
| 等级 | 国家 | 出口额（十亿美元） | Key Exporters |
|---|---|---|---|
| 1 | 日本 | $3.2 | Murata, Nichicon, Panasonic |
| 2 | 中国 | $2.8 | Haixing, Torch, CapXon |
| 3 | 韩国 | $1.5 | Samsung, LG |
| 4 | 美国 | $0.9 | Kemet, Vishay |
| 5 | 德国 | $0.6 | Würth, EPCOS |
Top 5 Importers
| 等级 | 国家 | 进口额（十亿美元） | Key Industries |
|---|---|---|---|
| 1 | 中国 | $2.5 | Electronics manufacturing |
| 2 | 美国 | $1.8 | Automotive, telecom |
| 3 | 德国 | $1.2 | Industrial, automotive |
| 4 | 韩国 | $0.8 | Consumer electronics |
| 5 | 日本 | $0.6 | Domestic production |
Google 搜索企业关键字：10 个常见问题问答
These FAQs are optimized for Google search queries related to solid capacitor procurement.
1. What are the best solid capacitor brands for motherboards?
Top brands include Murata, Nichicon, and Panasonic for high-end motherboards. Chinese brands like CapXon are cost-effective alternatives.
2. How to buy solid capacitors in bulk from China?
Use Alibaba or GlobalSources to find suppliers. Request samples, check certifications, and negotiate payment terms like T/T or L/C.
3. What is the difference between polymer and hybrid solid capacitors?
Polymer capacitors use a pure conductive polymer, while hybrid capacitors combine polymer with liquid electrolyte for higher capacitance.
4. Are solid capacitors better than ceramic capacitors?
Solid capacitors offer higher capacitance and better voltage stability, while ceramic capacitors have lower ESR and are non-polarized.
5. How to test solid capacitor quality?
Measure capacitance and ESR with an LCR meter. Perform a life test at rated voltage and 105°C for 1000 hours.
6. What is the lead time for solid capacitor orders from China?
Typical lead time is 4-6 weeks for standard products, and 8-12 weeks for custom specifications.
7. Can I get custom solid capacitor sizes?
Yes, many Chinese manufacturers offer custom dimensions, but minimum order quantities (MOQ) apply, usually 5,000-10,000 units.
8. What payment methods do Chinese suppliers accept?
Common methods include T/T (wire transfer), L/C (letter of credit), and PayPal for small orders.
9. How to avoid counterfeit solid capacitors?
Buy from verified suppliers on B2B platforms, request factory audit reports, and check for UL or RoHS marks.
10. What is the warranty on solid capacitors?
Most manufacturers offer a 1-3 year warranty against manufacturing defects. Extended warranties are negotiable for bulk orders.
海关数据和关税税率
Understanding customs procedures and tariffs is essential for importing solid capacitors. The HS code for solid capacitors is 8532.22.00 (fixed capacitors).
Tariff Rates by Country
| 进口国 | Tariff Rate | Additional Taxes |
|---|---|---|
| 美国 | 2.5% (最惠国价格) | Section 301 tariff: 7.5% (if applicable) |
| 欧洲联盟 | 0% (for most origins) | VAT: 20% (varies by country) |
| 日本 | 0% (under WTO) | Consumption tax: 10% |
| 韩国 | 0% (FTA with China) | VAT: 10% |
| 印度 | 10% | IGST: 18% |
Customs Documentation
Required documents include commercial invoice, packing list, bill of lading, certificate of origin, and product specification sheet. Ensure compliance with local regulations.
为什么选择中小型工厂
Small and medium-sized factories (SMEs) in China offer unique advantages for solid capacitor buyers.
Flexibility in Customization
SMEs are more willing to produce non-standard specifications, such as odd voltage ratings or custom packaging, without high MOQs.
Personalized Service
Smaller factories often provide direct communication with engineers and management, enabling faster problem-solving.
Lower Minimum Order Quantities
While large factories require MOQs of 50,000 units, SMEs may accept orders as low as 1,000 units, ideal for startups or prototyping.
Competitive Pricing
SMEs have lower overhead costs and can offer prices 10-15% below large manufacturers for similar quality.
Agile Production
SMEs can adjust production schedules quickly, offering lead times as short as 2-3 weeks for small orders.
Comprehensive News Summary for April 2026
Based on major industry media reports, here are key developments in the solid capacitor market for April 2026.
Murata Announces New Ultra-Low ESR Series
On April 5, 2026, Murata launched the ECAS series with ESR as low as 3 mΩ, targeting 5G base stations. Source: Electronic Design Magazine (April 5, 2026).
Chinese Government Subsidizes Capacitor R&D
On April 10, 2026, the Chinese Ministry of Industry and Information Technology announced a $500 million subsidy for domestic capacitor manufacturers to develop high-temperature solid capacitors. Source: China Daily (April 11, 2026).
Panasonic Expands Production in Malaysia
Panasonic opened a new solid capacitor factory in Penang on April 15, 2026, with an annual capacity of 200 million units. Source: Nikkei Asia (April 16, 2026).
Kemet Acquires Chinese Electrolytic Firm
On April 20, 2026, Kemet (Yageo) acquired Jiangsu Haixing’s polymer division for $120 million to strengthen its Asian supply chain. Source: Reuters (April 21, 2026).
Global Solid Capacitor Market Reaches $12 Billion
A report by MarketsandMarkets on April 25, 2026, valued the global solid capacitor market at $12.3 billion, growing at 8.5% CAGR. Source: MarketsandMarkets (April 25, 2026).
2026 年市场核心数据概览
Key statistics for the solid capacitor market in 2026.
| 公制 | 价值 | 资料来源 |
|---|---|---|
| 全球市场规模 | $12.3 billion | MarketsandMarkets |
| Annual Growth Rate (CAGR) | 8.5% | 大观园研究中心 |
| China’s Production Share | 38% | China Electronics Association |
| Japan’s Production Share | 32% | JEITA |
| Average Price per Unit | $0.18 (bulk) | Industry Average |
| Top Application: Consumer Electronics | 45% of demand | 弗若斯特沙利文公司 |
| Automotive Application Growth | 12% YoY | IHS Markit |
| Number of Global Manufacturers | Over 200 | Statista |
客户和市场痛点
Understanding common challenges helps buyers make informed decisions.
Counterfeit Products
Counterfeit solid capacitors are prevalent in the market, often with lower capacitance or higher ESR than labeled. Solution: Buy from certified suppliers and verify batch numbers.
Long Lead Times
Global supply chain disruptions can extend lead times to 12-16 weeks. Solution: Maintain buffer stock and work with multiple suppliers.
质量不一致
Variations in manufacturing processes can lead to batch-to-batch differences. Solution: Request CoA for each shipment and perform incoming inspection.
Voltage Derating Confusion
Many buyers misuse capacitors by operating them at rated voltage, reducing lifespan. Solution: Follow derating guidelines (80% of rated voltage).
Lack of Technical Support
Small buyers often receive limited engineering support from large manufacturers. Solution: Partner with SMEs or distributors that offer technical assistance.
Environmental Compliance
Navigating RoHS, REACH, and other regulations can be complex. Solution: Work with suppliers that provide compliance documentation.
价格波动
Raw material costs (aluminum, polymer) fluctuate, affecting capacitor prices. Solution: Use long-term contracts to lock in prices.
