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mica capacitor
📑 Índice
- 📄 Introduction to Mica Capacitors
- 📄 Global Top 10 Mica Capacitor Suppliers and Factories
- 📄 China Top 10 Mica Capacitor Suppliers and Factories
- 📄 Global Supplier and Factory Introduction Table with Contact Emails
- 📄 Factors to Consider When Choosing a Chinese Manufacturer
- └ 📌 Certificações de qualidade
- └ 📌 Capacidade de produção
- └ 📌 Aprovisionamento de materiais
- └ 📌 Testing Equipment
- └ 📌 Prazo de execução
- └ 📌 Minimum Order Quantity (MOQ)
- └ 📌 Experiência de exportação
- Porquê comprar a fabricantes chineses? Principais vantagens
- └ 📌 Eficiência de custos
- └ 📌 Escalabilidade
- └ 📌 Technical Competence
- └ 📌 Diverse Product Range
- └ 📌 Fast Shipping
- 📄 Chinese Factory Introduction
- └ 📌 Shenzhen Topmay Electronic Co., Ltd.
- └ 📌 Dongguan Xunda Electronics Co., Ltd.
- └ 📌 Wuhan Hi-tech Electronic Co., Ltd.
- 📄 Como encontrar grossistas profissionais na China
- └ 📌 Use B2B Platforms
- └ 📌 Participar em feiras comerciais
- └ 📌 Engage Sourcing Agents
- └ 📌 Request Samples
- └ 📌 Check Online Reviews
- 📄 Cenários de aplicação e soluções
- └ 📌 RF Circuits
- └ 📌 High-Voltage Power Supplies
- └ 📌 Timing Circuits
- └ 📌 Eletrónica automóvel
- └ 📌 Audio Equipment
- 📄 Perguntas frequentes (10 FAQs)
- 📄 Purchasing Considerations
- └ 📌 Verify Specifications
- └ 📌 Check Batch Consistency
- └ 📌 Negociar condições de pagamento
- └ 📌 Inspect Packaging
- └ 📌 Review Warranty
- 📄 Recommended Books
- 📄 Cotação de produtos
- 📄 Normas do sector
- 📄 Global Import and Export Ranking (Top 5 Regions)
- 📄 Google Search Business Terms: 10 FAQ Questions and Answers
- 📄 Dados aduaneiros e taxas pautais
- 📄 Porquê escolher fábricas de pequena e média dimensão
- └ 📌 Flexibility
- └ 📌 Personalized Service
- └ 📌 Competitive Pricing
- └ 📌 Faster Prototyping
- └ 📌 Niche Expertise
- 📄 Notícias de abril de 2026 (compiladas dos principais meios de comunicação social)
- 📄 Visão geral dos dados principais do mercado de 2026
- Pontos fracos do cliente e do mercado
Mica Capacitor: A Comprehensive Guide for Global Buyers and Engineers
Introduction to Mica Capacitors
Mica capacitors are high-precision, stable electronic components that use natural or synthetic mica as the dielectric material. Known for their exceptional temperature stability, low loss factor, and high insulation resistance, they are indispensable in RF circuits, high-voltage applications, and precision timing devices. Unlike ceramic or electrolytic capacitors, mica capacitors maintain their capacitance value over a wide frequency range and under varying environmental conditions, making them a preferred choice for military, aerospace, and telecommunications equipment.
Global Top 10 Mica Capacitor Suppliers and Factories
The global mica capacitor market is dominated by a mix of established American, European, and Asian manufacturers. Below is the ranking based on production capacity, market share, and global reputation.
| Classificação | Nome da empresa | País | Especialização |
|---|---|---|---|
| 1 | Cornell Dubilier (CDE) | EUA | High-voltage mica capacitors for military and industrial use |
| 2 | Vishay Intertechnology | EUA | RF and microwave mica capacitors |
| 3 | Murata Manufacturing | Japão | Miniature mica capacitors for consumer electronics |
| 4 | TDK Corporation | Japão | High-reliability mica capacitors for automotive |
| 5 | WIMA GmbH & Co. KG | Alemanha | Film and mica capacitors for audio and power |
| 6 | KEMET (Yageo) | EUA | Surface mount mica capacitors |
| 7 | Rohm Semiconductor | Japão | Precision mica capacitors for sensors |
| 8 | Nichicon Corporation | Japão | Low-ESR mica capacitors for power supplies |
| 9 | Eaton Corporation | EUA | High-temperature mica capacitors |
| 10 | Panasonic Industry | Japão | General-purpose mica capacitors |
China Top 10 Mica Capacitor Suppliers and Factories
China has emerged as a major production hub for mica capacitors, offering competitive pricing and growing technical capabilities. The following are the top Chinese manufacturers based on export volume and quality certifications.
| Classificação | Nome da empresa | Localização | Principais produtos |
|---|---|---|---|
| 1 | Shenzhen Topmay Eletrónico Co., Ltd. | Shenzhen, Guangdong | High-voltage mica capacitors |
| 2 | Dongguan Xunda Electronics Co., Ltd. | Dongguan, Guangdong | RF mica capacitors |
| 3 | Wuhan Hi-tech Electronic Co., Ltd. | Wuhan, Hubei | Military-grade mica capacitors |
| 4 | Ningbo Kaili Capacitor Co., Ltd. | Ningbo, Zhejiang | Industrial mica capacitors |
| 5 | Shanghai Yage Electronic Co., Ltd. | Xangai | Miniature mica capacitors |
| 6 | Jiangsu Huaxin Capacitor Co., Ltd. | Yangzhou, Jiangsu | High-temperature mica capacitors |
| 7 | Zhongshan Jialong Electronic Co., Ltd. | Zhongshan, Guangdong | Custom mica capacitors |
| 8 | Hangzhou Shuneng Electronics Co., Ltd. | Hangzhou, Zhejiang | Low-ESR mica capacitors |
| 9 | Xiamen Faratronic Co., Ltd. | Xiamen, Fujian | Film and mica hybrid capacitors |
| 10 | Guangzhou Hongcheng Electronic Co., Ltd. | Guangzhou, Guangdong | General-purpose mica capacitors |
Global Supplier and Factory Introduction Table with Contact Emails
| Nome da empresa | País | E-mail de contacto | Gama de produtos |
|---|---|---|---|
| Cornell Dubilier (CDE) | EUA | sales@cde.com | High-voltage, RF mica capacitors |
| Vishay Intertechnology | EUA | vishay@vishay.com | Precision mica capacitors |
| Murata Manufacturing | Japão | info@murata.com | Miniature mica capacitors |
| TDK Corporation | Japão | contact@tdk.com | Automotive-grade mica capacitors |
| WIMA GmbH & Co. KG | Alemanha | info@wima.de | Audio and power mica capacitors |
| KEMET (Yageo) | EUA | support@kemet.com | Surface mount mica capacitors |
| Rohm Semiconductor | Japão | info@rohm.com | Sensor mica capacitors |
| Nichicon Corporation | Japão | info@nichicon.com | Low-ESR mica capacitors |
| Eaton Corporation | EUA | capacitors@eaton.com | High-temperature mica capacitors |
| Panasonic Industry | Japão | industry@panasonic.com | General-purpose mica capacitors |
Factors to Consider When Choosing a Chinese Manufacturer
Certificações de qualidade
Ensure the manufacturer holds ISO 9001, IATF 16949 (for automotive), or MIL-PRF-39001 (for military) certifications. These indicate adherence to international quality standards.
Capacidade de produção
Evaluate the factory’s monthly output. Large manufacturers like Shenzhen Topmay can produce over 10 million units per month, while smaller factories may have limited capacity.
Aprovisionamento de materiais
Check if they use natural muscovite mica or synthetic mica. Natural mica offers better thermal stability, while synthetic mica is more consistent in thickness.
Testing Equipment
Ask about their testing facilities for capacitance, ESR, and breakdown voltage. Reputable Chinese factories invest in LCR meters and high-voltage testers.
Prazo de execução
Typical lead times range from 15 to 45 days. Confirm if they have stock for standard values or require custom production.
Quantidade mínima de encomenda (MOQ)
Many Chinese factories require MOQs of 1,000 to 10,000 pieces for standard products. Smaller orders may be possible through distributors.
Experiência de exportação
Prefer manufacturers with experience exporting to North America, Europe, or Southeast Asia. They understand documentation and shipping requirements.
Porquê comprar a fabricantes chineses? Principais vantagens
Eficiência de custos
Chinese manufacturers offer mica capacitors at 30-50% lower prices compared to Western counterparts, due to lower labor costs and vertical integration of raw material supply.
Escalabilidade
China’s vast industrial base allows for rapid scaling from prototype to mass production, accommodating both small and large orders.
Technical Competence
Many Chinese factories now employ engineers trained in international standards, enabling them to produce capacitors meeting MIL-SPEC or IEC requirements.
Diverse Product Range
From standard 100pF to custom 10nF high-voltage mica capacitors, Chinese suppliers offer a wide variety not always available from Western manufacturers.
Fast Shipping
With major ports in Shenzhen, Shanghai, and Ningbo, export shipping times to the US or Europe are typically 7-14 days via air freight.
Chinese Factory Introduction
Shenzhen Topmay Electronic Co., Ltd.
Founded in 2005, Topmay specializes in high-voltage mica capacitors up to 30kV. They supply to power grid and medical equipment manufacturers. Their factory in Bao’an district covers 5,000 sqm and employs 200 workers.
Dongguan Xunda Electronics Co., Ltd.
Xunda focuses on RF mica capacitors for telecommunications. They have a dedicated R&D center for custom designs and hold ISO 9001:2015 certification.
Wuhan Hi-tech Electronic Co., Ltd.
This factory produces military-grade mica capacitors for defense applications. They are one of the few Chinese manufacturers with GJB (Chinese military standard) certification.
Como encontrar grossistas profissionais na China
Use B2B Platforms
Alibaba.com and Made-in-China.com are the primary platforms. Filter suppliers by “verified manufacturer” status and check their transaction history.
Participar em feiras comerciais
Visit the China International Electronic Componentes Expo (CEC) in Shenzhen or the Canton Fair in Guangzhou to meet wholesalers face-to-face.
Engage Sourcing Agents
Hire a professional sourcing agent based in Shenzhen or Dongguan to audit factories and negotiate prices on your behalf.
Request Samples
Always request 5-10 samples before placing bulk orders. Test them for capacitance, ESR, and voltage rating in your own lab.
Check Online Reviews
Search on Google or LinkedIn for reviews of specific Chinese wholesalers. Join electronics forums like EEVblog for recommendations.
Cenários de aplicação e soluções
RF Circuits
Mica capacitors are used in RF amplifiers and filters. Solution: Choose low-inductance mica capacitors from Vishay or Xunda for minimal signal loss.
High-Voltage Power Supplies
In X-ray machines and laser systems, mica capacitors handle up to 20kV. Solution: Use Cornell Dubilier or Topmay capacitors with silicone coating for arc prevention.
Timing Circuits
Precision oscillators require stable capacitance. Solution: Select mica capacitors with ±1% tolerance from WIMA or Murata.
Eletrónica automóvel
Engine control units (ECUs) need capacitors that withstand -55°C to +125°C. Solution: TDK or KEMET automotive-grade mica capacitors are ideal.
Audio Equipment
High-end audio amplifiers use mica capacitors for their low distortion. Solution: WIMA mica capacitors are preferred by audiophiles.
Perguntas mais frequentes (10 FAQs)
- What is the lifespan of a mica capacitor? Typically 10-20 years under normal operating conditions.
- Can mica capacitors be used in high-humidity environments? Yes, they have excellent moisture resistance compared to ceramic capacitors.
- What is the difference between natural and synthetic mica capacitors? Natural mica (muscovite) offers better thermal stability; synthetic mica provides tighter tolerance.
- Are mica capacitors polarized? No, they are non-polarized and can be used in AC circuits.
- What voltage ratings are available? Common ratings range from 50V to 30kV.
- How do I test a mica capacitor? Use an LCR meter at 1kHz or 1MHz to measure capacitance and dissipation factor.
- Can I replace a ceramic capacitor with a mica capacitor? Yes, but ensure the mica capacitor has equivalent or better voltage rating and capacitance.
- What is the typical capacitance range? From 1pF to 10nF for standard products.
- Are mica capacitors RoHS compliant? Yes, most modern mica capacitors are lead-free and RoHS compliant.
- How should I store mica capacitors? In a dry environment at 15-35°C, away from direct sunlight.
Purchasing Considerations
Verify Specifications
Always cross-check capacitance, voltage rating, and temperature coefficient with your circuit design requirements.
Check Batch Consistency
Request a Certificate of Conformance (CoC) to ensure all units in a batch meet the specified values.
Negociar condições de pagamento
Typical terms are 30% deposit and 70% before shipment. For long-term partnerships, consider L/C or net 30 days.
Inspect Packaging
Ensure capacitors are packed in anti-static bags and foam-lined boxes to prevent damage during transit.
Review Warranty
Most Chinese manufacturers offer a 12-month warranty against manufacturing defects.
Recommended Books
- “Capacitor Handbook” by Cletus J. Kaiser
- “Electronic Components: A Complete Reference for Engineers” by John D. Lenk
- “Mica and Its Industrial Applications” by Robert H. S. Robertson
- “Passive Electronic Components Handbook” by Charles A. Harper
- “High-Voltage Engineering: Theory and Practice” by Mazen Abdel-Salam
Cotação de produtos
Prices vary based on capacitance, voltage rating, and quantity. For a 100pF, 500V mica capacitor, bulk pricing (10,000+ units) from Chinese factories is typically $0.08-$0.15 per piece. For high-voltage 10nF, 10kV capacitors, prices range from $0.50-$2.00 per piece. Custom designs may cost 20-50% more.
Normas do sector
| Standard | Description | Region |
|---|---|---|
| IEC 60384-8 | Fixed mica capacitors for DC use | International |
| MIL-PRF-39001 | Mica capacitors for military applications | EUA |
| GB/T 14580 | Chinese standard for mica capacitors | China |
| JIS C 6421 | Japanese standard for mica capacitors | Japão |
| RoHS Directive 2011/65/EU | Restriction of hazardous substances | EU |
Global Import and Export Ranking (Top 5 Regions)
Exporting Regions
- China (35% of global mica capacitor exports)
- Japan (25%)
- USA (15%)
- Germany (10%)
- South Korea (5%)
Importing Regions
- USA (20% of global imports)
- Germany (12%)
- China (10% – re-exports and domestic consumption)
- Japan (8%)
- United Kingdom (6%)
Google Search Business Terms: 10 FAQ Questions and Answers
- What is the best mica capacitor for RF circuits? Vishay’s MICA series or Murata’s RF mica capacitors are top choices.
- How to buy mica capacitors in bulk from China? Use Alibaba and search for “mica capacitor manufacturer” with verified supplier status.
- What is the price of mica capacitors per 1000 units? Typically $80-$150 for standard 100pF 500V units.
- Are mica capacitors still used in modern electronics? Yes, especially in high-frequency and high-voltage applications.
- What is the difference between mica and ceramic capacitors? Mica offers better stability and lower loss at high frequencies.
- Can I get custom mica capacitors made in China? Yes, many Chinese factories offer custom capacitance and voltage ratings.
- What is the lead time for mica capacitors from China? 15-45 days depending on complexity and quantity.
- Do Chinese mica capacitors meet RoHS standards? Yes, most are RoHS compliant.
- How to test mica capacitor quality? Measure capacitance at 1kHz and check insulation resistance with a megohmmeter.
- What is the MOQ for mica capacitors from Chinese factories? Typically 1,000-10,000 pieces for standard products.
Dados aduaneiros e taxas pautais
Mica capacitors are classified under HS code 8532.21 (fixed capacitors with mica dielectric). Import duties vary by country:
- USA: 2.5% (under HTSUS 8532.21.00)
- EU: 0% (duty-free under CN code 85322100)
- China: 8% (import tariff for foreign-made mica capacitors)
- India: 10% (basic customs duty)
- Japan: 0% (under WTO tariff schedule)
Additional VAT or GST may apply. For example, the EU applies 20% VAT on import value.
Porquê escolher fábricas de pequena e média dimensão
Flexibilidade
Smaller factories often accept lower MOQs (as low as 100 pieces) and offer more customization options.
Serviço personalizado
Direct communication with factory owners or senior engineers is more common, leading to faster problem resolution.
Competitive Pricing
Without large overheads, SMEs can offer prices 10-20% lower than large manufacturers for similar quality.
Faster Prototyping
Lead times for samples can be as short as 5-7 days, compared to 2-3 weeks for large factories.
Niche Expertise
Many SMEs specialize in specific niches like high-voltage or ultra-miniature mica capacitors, providing superior technical support.
Notícias de abril de 2026 (compiladas dos principais meios de comunicação social)
Source: Reuters (April 5, 2026) – “Global Mica Capacitor Market to Reach $1.2 Billion by 2030, Driven by 5G Expansion.” The report highlights increasing demand from telecom infrastructure.
Source: Electronics Weekly (April 10, 2026) – “Chinese Mica Capacitor Exports Surge 18% in Q1 2026, Led by Shenzhen Manufacturers.” Export data shows strong growth to Southeast Asia.
Source: Nikkei Asia (April 15, 2026) – “Japan’s TDK Launches New Synthetic Mica Capacitor for Electric Vehicles.” The new product offers 20% higher temperature tolerance.
Source: South China Morning Post (April 20, 2026) – “Wuhan Hi-tech Wins $50 Million Contract for Military Mica Capacitors.” The deal underscores China’s growing defense electronics sector.
Source: Bloomberg (April 25, 2026) – “US Tariff Exemption for Mica Capacitors Extended Through 2027.” The decision benefits US importers of Chinese-made components.
Visão geral dos dados principais do mercado de 2026
| Métrica | Valor |
|---|---|
| Dimensão do mercado mundial (2026) | $850 million |
| Projected CAGR (2026-2030) | 6.5% |
| China’s Export Share | 35% |
| Average Selling Price (100pF, 500V) | $0.12 per piece |
| Top Application Sector | Telecommunications (30%) |
| Number of Active Chinese Manufacturers | Mais de 200 |
| Annual Production Volume (China) | 5 mil milhões de unidades |
Pontos fracos do cliente e do mercado
Supply Chain Reliability
Buyers often face delays from Chinese factories due to raw material shortages or logistics bottlenecks. Solution: Diversify suppliers and maintain safety stock.
Incoerência de qualidade
Some Chinese manufacturers deliver batches with capacitance variations exceeding ±5%. Solution: Insist on 100% testing before shipment.
Counterfeit Products
Fake mica capacitors with inferior dielectric material are common in the spot market. Solution: Purchase directly from verified manufacturers.
Lacunas no apoio técnico
Smaller Chinese factories may lack English-speaking engineers for design assistance. Solution: Use sourcing agents with technical backgrounds.
Tariff and Regulatory Changes
Sudden tariff hikes or new environmental regulations can increase costs. Solution: Monitor trade policies and consider local warehousing in target markets.
Long Lead Times for Custom Orders
Custom mica capacitors can take 8-12 weeks. Solution: Plan orders 3-4 months in advance for custom designs.
