Polyester Capacitor: The Complete 2026 Market & Sourcing Guide

1. Introduction to Polyester Capacitors

Polyester capacitors, also known as Mylar capacitors, are a type of film capacitor that uses a polyester film (typically polyethylene terephthalate, PET) as the dielectric material. They are widely used in electronic circuits for applications such as bypassing, coupling, decoupling, and filtering. Key characteristics include excellent stability, low leakage current, high insulation resistance, and a wide operating temperature range. These capacitors are non-polarized, making them suitable for AC and DC circuits. Their cost-effectiveness and reliability have made them a staple in consumer electronics, industrial controls, and automotive systems.

2. Global Top 10 Polyester Capacitor Suppliers & Factories

The global market for polyester capacitors is dominated by established manufacturers with strong R&D capabilities and extensive distribution networks. Based on 2025-2026 market data, the top 10 global suppliers are:

الرتبة	الشركة	البلد	نقاط القوة الرئيسية
1	Panasonic	اليابان	High reliability, automotive-grade series
2	TDK (Epcos)	Japan/Germany	Wide voltage range, industrial applications
3	Vishay	الولايات المتحدة الأمريكية	High capacitance density, military specs
4	KEMET (Yageo)	USA/Taiwan	Advanced film technology, long life
5	WIMA	ألمانيا	Premium audio-grade capacitors
6	Nichicon	اليابان	Miniaturized designs, low ESR
7	Murata	اليابان	High-frequency performance
8	AVX (Kyocera)	USA/Japan	Specialty film capacitors
9	Cornell Dubilier	الولايات المتحدة الأمريكية	High-voltage industrial capacitors
10	Hitachi AIC	اليابان	Automotive and power electronics

3. Top 10 Polyester Capacitor Suppliers & Factories in China

China has emerged as a global manufacturing hub for polyester capacitors, offering competitive pricing and large-scale production. The following are the top 10 Chinese manufacturers as of 2026:

الرتبة	الشركة	الموقع	التخصص
1	Jianghai Capacitor	Nantong	Aluminum electrolytic & film capacitors
2	Nantong Jianghai	Nantong	High-reliability PET capacitors
3	Xiamen Faratronic	شيامن	Film capacitors for automotive
4	Shenzhen CapXon	شنتشن	Miniature polyester capacitors
5	Shanghai Aishi	شنغهاي	Customized film capacitors
6	Dongguan Yunsheng	دونغقوان	High-voltage series
7	Hangzhou Shuneng	هانغتشو	Energy storage capacitors
8	Wuhan Huayuan	Wuhan	Industrial-grade capacitors
9	Shenzhen JEC	شنتشن	Low-cost mass production
10	Changzhou Youhao	Changzhou	Specialty PET/PP films

4. Global Supplier & Factory Contact Table (With Emails)

Below is a curated list of verified contact emails for major global polyester capacitor manufacturers. Note: Emails are for business inquiries only.

الشركة	البلد	البريد الإلكتروني للاتصال	مجموعة المنتجات
Panasonic	اليابان	capacitor.sales@jp.panasonic.com	ECHU, ECW series
TDK	اليابان	capacitors@tdk.com	B32520-B32529 series
Vishay	الولايات المتحدة الأمريكية	filmcapacitors@vishay.com	MKT, MKP series
KEMET	USA/Taiwan	capacitor.sales@kemet.com	PHE, R76 series
WIMA	ألمانيا	info@wima.de	MKS, FKP series
Nichicon	اليابان	sales@nichicon.co.jp	UES, UFG series
Murata	اليابان	capacitors@murata.com	GRM, LLL series
AVX	الولايات المتحدة الأمريكية	filmcapacitors@avx.com	FFVS, FFVE series
Cornell Dubilier	الولايات المتحدة الأمريكية	sales@cde.com	CDE series
Hitachi AIC	اليابان	capacitor@hitachi-aic.com	HCE series

5. عوامل يجب مراعاتها عند اختيار الشركة المصنعة الصينية

5.1 شهادات الجودة

Ensure the manufacturer holds ISO 9001, IATF 16949 (for automotive), and RoHS/REACH compliance. Many Chinese factories also have UL and CQC certifications.

5.2 Production Capacity & Lead Time

Verify monthly output (e.g., 10 million units per month for medium factories) and typical lead times (usually 2-4 weeks for standard parts).

5.3 Technical Support & Customization

Check if they offer custom capacitance, voltage ratings, or lead spacing. Top factories provide free samples and engineering support.

5.4 Pricing & MOQ

Minimum order quantities (MOQ) vary from 1,000 to 100,000 pieces. Compare FOB prices (e.g., $0.02-$0.10 per piece for common values).

5.5 Reputation & Reviews

Use platforms like Alibaba, Global Sources, and Made-in-China to check ratings and customer feedback. Also request client references.

6. لماذا الشراء من المصنعين الصينيين؟ المزايا الرئيسية

• الفعالية من حيث التكلفة: Chinese factories offer 30-50% lower prices compared to Japanese or European counterparts due to economies of scale and lower labor costs.
• Large Production Volume: China produces over 60% of the world’s film capacitors, ensuring stable supply even for large orders.
• النماذج الأولية السريعة: Many manufacturers can deliver samples within 3-5 days and mass production within 2 weeks.
• مجموعة منتجات متنوعة: From standard 100nF/63V to high-voltage 10µF/1000V, Chinese factories cover all common specifications.
• Flexible Payment Terms: T/T, L/C, and even PayPal for small orders are commonly accepted.
• الابتكار: Chinese companies are increasingly investing in R&D for miniaturization and high-temperature stability.

7. In-Depth Introduction to Chinese Factories

7.1 Jianghai Capacitor (Nantong)

Founded in 1958, Jianghai is one of China’s oldest capacitor manufacturers. They produce over 2 billion capacitors annually, including PET film capacitors. Their products are used in Huawei, Siemens, and Schneider Electric equipment.

7.2 Xiamen Faratronic

A subsidiary of Faratronic Group, this factory specializes in metallized polyester film capacitors for automotive and renewable energy applications. They have IATF 16949 certification and supply to Tesla and BYD.

7.3 Shenzhen CapXon

Known for miniaturized capacitors, CapXon produces surface-mount (SMD) polyester capacitors widely used in smartphones and IoT devices. They have 20+ automated production lines.

8. How to Find Professional Wholesalers in China

1. استخدام منصات B2B: Search “polyester capacitor” on Alibaba.com, Made-in-China.com, and GlobalSources.com. Filter by “Verified Supplier” and “Trade Assurance”.
2. حضور المعارض التجارية: Visit the Canton Fair (April/October) and Electronica China (July) to meet suppliers face-to-face.
3. استعن بوكيل توريد Companies like Sourcify or local agents in Shenzhen can audit factories and negotiate prices.
4. Check Industry Directories: Refer to the China إلكتروني المكونات Association (CECA) list for verified manufacturers.
5. طلب العينات: Always order 10-20 samples for testing before placing bulk orders.

9. سيناريوهات التطبيق والحلول

التطبيق	الحل	Recommended Series
Power Supply Filtering	Low ESR, high ripple current	Panasonic ECW, Vishay MKT
Audio Coupling	Low distortion, high stability	WIMA MKS, Nichicon UES
Automotive ECU	High temperature (125°C), AEC-Q200	TDK B32529, KEMET R76
LED Lighting	Compact size, long life	Murata LLL, CapXon SMD
Industrial Motor Drives	High voltage (1000V+), snubber circuits	Cornell Dubilier CDE
Consumer Electronics	Miniature, low cost	Jianghai MEF, Yunsheng

10. الأسئلة المتداولة (10 أسئلة متكررة)

1. Q: What is the difference between polyester and polypropylene capacitors?
   A: Polyester (PET) has higher dielectric constant (3.3 vs 2.2), allowing smaller size for same capacitance, but polypropylene (PP) has lower loss and better stability.
2. Q: Can polyester capacitors be used in AC circuits?
   A: Yes, they are non-polarized and suitable for AC applications up to their rated voltage.
3. Q: What is the typical lifespan of a polyester capacitor?
   A: 10,000 to 100,000 hours at rated temperature, depending on quality and operating conditions.
4. Q: Are polyester capacitors suitable for high-frequency circuits?
   A: They have moderate self-resonant frequency (SRF), typically up to 10 MHz, making them suitable for audio and low-frequency RF.
5. Q: How do I identify counterfeit polyester capacitors?
   A: Check for consistent markings, measure capacitance and ESR with an LCR meter, and verify with manufacturer’s datasheet.
6. Q: What voltage ratings are common?
   A: 50V, 63V, 100V, 250V, 400V, 630V, and 1000V are standard.
7. Q: Can I replace a polypropylene capacitor with polyester?
   A: Only if the application tolerates higher dissipation factor and temperature coefficient. Not recommended for precision circuits.
8. Q: What is the temperature range?
   A: Typically -55°C to +125°C for standard types, with some high-temp versions up to +150°C.
9. Q: Do polyester capacitors have polarity?
   A: No, they are non-polarized and can be inserted in either direction.
10. Q: How should I store polyester capacitors?
    A> Store in a cool, dry place (15-35°C, <60% RH) away from direct sunlight and corrosive gases.

11. اعتبارات المشتريات

• Specification Verification: Always confirm capacitance tolerance (e.g., ±5%, ±10%), voltage rating, and lead spacing (e.g., 5mm, 7.5mm, 10mm).
• التعبئة والتغليف: Choose between bulk pack, tape & reel (for SMD), or ammo pack (for through-hole).
• Shipping Terms: Clarify FOB (e.g., FOB Shenzhen) or CIF terms to avoid unexpected costs.
• الفحص: Hire a third-party inspection agency (e.g., SGS, Bureau Veritas) for pre-shipment quality checks.
• Payment Security: Use letter of credit (L/C) for large orders or PayPal for small samples to mitigate fraud risk.

12. الكتب الموصى بها

1. “Capacitor Handbook” by Cletus J. Kaiser – Comprehensive guide to all capacitor types including polyester.
2. “Film Capacitors” by Dr. Paul D. Mitcheson – Focuses on theory and application of film capacitors.
3. “Electronic Components: A Complete Reference for Project Builders” by Delton T. Horn – Practical guide for sourcing and using capacitors.
4. “The Art of Electronics” by Paul Horowitz and Winfield Hill – Classic reference with capacitor selection chapters.
5. “Capacitors: Technology and Trends” by R. P. Deshpande – Covers global manufacturing and market trends.

13. Product Quotation (Sample Pricing)

Prices are indicative FOB Shenzhen for standard 100nF/63V polyester capacitors (through-hole, 5mm lead spacing) in 100,000-piece quantities as of Q1 2026:

Manufacturer	Unit Price (USD)	الحد الأدنى لكمية الطلب (قطعة)	المهلة الزمنية
Jianghai	$0.025	10,000	2 weeks
Faratronic	$0.030	5,000	3 weeks
CapXon	$0.020	20,000	1 week
Yunsheng	$0.018	50,000	2 weeks
Shuneng	$0.035	1,000	4 weeks

14. معايير الصناعة

Polyester capacitors must comply with international and national standards:

• IEC 60384-13: Fixed capacitors for use in electronic equipment – Part 13: Sectional specification for fixed metallized polyester film dielectric capacitors.
• EIA-198: Standard for film capacitors.
• GB/T 14579 (China): General specification for polyester film capacitors.
• UL 810: Capacitors for use in electronic equipment (safety standard).
• توجيه RoHS 2011/65/EU: Restriction of hazardous substances.
• AEC-Q200: Stress test qualification for passive components in automotive applications.

15. Global Import/Export Rankings (Top 5)

Based on 2025 trade data (HS Code 8532.25 – Fixed capacitors with dielectric of paper or plastics):

Top 5 Exporting Countries

1. China – 58% of global exports ($4.2 billion)
2. Japan – 15% ($1.1 billion)
3. Germany – 8% ($580 million)
4. USA – 5% ($360 million)
5. South Korea – 4% ($290 million)

Top 5 Importing Countries

1. USA – 22% ($1.6 billion)
2. China – 12% ($870 million) – re-export for assembly
3. Germany – 10% ($720 million)
4. South Korea – 7% ($510 million)
5. Japan – 6% ($430 million)

16. Google Search Commercial Keywords – 10 FAQ Pairs

1. Q: Where to buy polyester capacitors in bulk?
   A: Purchase from Alibaba, Global Sources, or directly from Chinese manufacturers like Jianghai and Faratronic. Use “polyester capacitor wholesale” as search term.
2. Q: What is the price of polyester capacitor 100nF?
   A: Prices range from $0.01 to $0.05 per piece depending on quantity and tolerance. Check current quotes on 1688.com or Alibaba.
3. Q: Which polyester capacitor manufacturer is best for automotive?
   A: Panasonic, TDK, and Faratronic (China) have AEC-Q200 certified series. Search “automotive polyester capacitor supplier”.
4. Q: How to test polyester capacitor quality?
   A> Use an LCR meter to measure capacitance, ESR, and dissipation factor. Also perform a voltage withstand test at 1.5x rated voltage.
5. Q: Can I get free samples of polyester capacitors?
   A: Yes, many Chinese suppliers offer free samples for shipping cost. Contact via Alibaba Trade Assurance.
6. Q: What is the lead time for polyester capacitor orders?
   A: Standard lead time is 2-4 weeks for mass production, 3-5 days for samples.
7. Q: Are Chinese polyester capacitors reliable?
   A: Reputable brands like Jianghai and Faratronic meet international standards. Always request certification documents.
8. Q: How to calculate shipping cost for polyester capacitors?
   A> Use FOB or CIF terms. For sea freight, estimate $500-$2000 per 20-foot container depending on destination.
9. Q: What is the MOQ for custom polyester capacitors?
   A: Typically 10,000 to 50,000 pieces for custom values or lead spacing.
10. Q: Do polyester capacitors have a shelf life?
    A: Yes, recommended storage is 2-3 years under proper conditions. After that, re-test before use.

17. Customs Data & Tariff Rates

For HS Code 8532.25 (fixed capacitors with dielectric of paper or plastics), the following tariff rates apply as of 2026:

البلد/المنطقة	معدل الرسوم الجمركية على الواردات	الملاحظات
الولايات المتحدة الأمريكية	2.5% (MFN)	Additional Section 301 tariffs may apply for Chinese origin (25%)
الاتحاد الأوروبي	0% (for most origins)	المعدلات التفضيلية لبلدان نظام الأفضليات المعمم
الصين	5% (MFN)	Reduced rates for ASEAN, Korea FTA
اليابان	0% (WTO bound rate)	Free trade agreements with many countries
كوريا الجنوبية	3% (MFN)	FTA with USA, EU reduces to 0%
الهند	10% (MFN)	Higher for non-ASEAN origin

Note: Always check with a customs broker for the latest rates, as trade policies change frequently.

18. Why Choose Small & Medium-Sized Factories

• المرونة: Small factories (50-200 employees) often accept smaller MOQs (1,000-5,000 pieces) and custom orders.
• استجابة أسرع: Decision-making is quicker, with sample turnaround in 2-3 days.
• خدمة مخصصة: Direct communication with the factory owner or engineer, leading to better problem-solving.
• أسعار تنافسية: Lower overhead costs can result in 10-20% price advantage over large corporations.
• الابتكار: Many small factories specialize in niche products (e.g., high-voltage, low-ESR) that large players ignore.
• Risk Mitigation: Diversifying suppliers across multiple small factories reduces dependency on a single source.

19. April 2026 News Summary (Compiled from Major Media)

• المصدر: رويترز (3 أبريل 2026) – “Global capacitor shortage eases as Chinese factories ramp up production. Polyester capacitor prices drop 15% year-on-year.”
• Source: Nikkei Asia (April 8, 2026) – “Panasonic announces new high-temperature polyester capacitor series for EV inverters, rated up to 150°C.”
• Source: China Daily (April 12, 2026) – “Jianghai Capacitor invests $50 million in new PET film production line in Nantong, targeting 30% capacity increase.”
• Source: Electronics Weekly (April 18, 2026) – “EU proposes new eco-design regulations for capacitors, requiring 95% recyclability by 2030.”
• Source: Bloomberg (April 22, 2026) – “US tariffs on Chinese capacitors remain at 25%, prompting buyers to shift to Southeast Asian sources.”
• Source: South China Morning Post (April 25, 2026) – “Xiamen Faratronic wins contract to supply capacitors for India’s 5G infrastructure rollout.”

20. نظرة عامة على البيانات الأساسية للسوق 2026

متري	القيمة	المصدر
Global polyester capacitor market size	$8.5 billion (2026)	جراند فيو للأبحاث
Compound annual growth rate (CAGR)	4.2% (2024-2030)	معلومات موردور
China’s share of global production	62%	China Electronics Components Association
Average selling price (100nF/63V)	$0.025 (FOB China)	Industry survey
شريحة التطبيقات العليا	Consumer electronics (35%)	Statista
Automotive segment growth	8.5% YoY	Yole Développement
Number of manufacturers in China	أكثر من 500	China Electronic Components Association

21. Customer & Market Pain Points

• عدم اتساق الجودة: Many buyers report variations in capacitance and ESR between batches from Chinese suppliers. Solution: Require batch testing reports and use third-party inspection.
• المنتجات المقلدة: Fake capacitors with incorrect ratings are common in the spot market. Solution: Buy directly from authorized distributors or verified factories.
• Long Lead Times for Custom Orders: Custom voltage or lead spacing can take 6-8 weeks. Solution: Plan ahead and maintain safety stock.
• عوائق التواصل: Language and time zone differences cause delays. Solution: Use bilingual sourcing agents or platforms with Chinese customer support.
• Tariff & Trade Uncertainty: US-China trade tensions increase costs unpredictably. Solution: Diversify sourcing to Vietnam, Malaysia, or Mexico.
• الحد الأدنى لكميات الطلبات: Large factories require MOQs of 100,000+ pieces. Solution: Partner with small factories or use group buying through trading companies.
• Lack of Technical Documentation: Some Chinese suppliers provide incomplete datasheets. Solution: Request full specifications and compare with IEC standards.
• Shipping Damage: Capacitors are sensitive to moisture and mechanical shock. Solution: Specify moisture barrier bags and anti-static packaging.
• Payment Fraud: Scams involving fake bank accounts are prevalent. Solution: Use Trade Assurance on Alibaba or L/C for large transactions.
• الامتثال البيئي: RoHS and REACH certifications may be falsified. Solution: Verify certificates with issuing bodies like SGS or TÜV.