Coin Supercapacitor Market: Domestic Substitution Breakthrough & HONGDA’s Professional Solutions

2026-03-22

Coin supercapacitors have become the dominant alternative to traditional button batteries across a wide range of micro-energy storage scenarios, including RTC real-time clock power failure protection, smart electricity, water and gas meters, IoT terminals, industrial control backup systems, and portable electronic devices.

Boasting unparalleled strengths such as ultra-long cycle life, stable performance over wide temperature ranges, maintenance-free operation, and high safety, these compact energy storage components are now indispensable in modern smart and industrial electronics.

In recent years, Chinese coin supercapacitor manufacturers have achieved a full-scale industry breakthrough, successfully replacing Japanese and Korean brands in the domestic smart meter market.

This article will break down the global coin supercapacitor brand landscape, compare core advantages between overseas and domestic suppliers, analyze the current progress of domestic substitution, and showcase Hongda’s professional supercapacitor solutions.

Global Leading Coin Supercapacitor Brands

Overseas Brands:

- United States: Eaton, Kemet, Abracon

- South Korea: Korchip

- Japan: Elna (discontinued production in 2026), Panasonic (discontinued)

- Australia: CAP-XX

As Japanese and Korean players phase out or reduce production, Chinese manufacturers are rapidly filling the gap—offering better availability, competitive pricing, and faster response times.

Comparison of Advantages: Domestic vs. Overseas Coin Supercapacitors

Localization Trend: Domestic Brands Take the Lead

In China’s smart meter market, domestic coin-type supercapacitors have already replaced Korean and Japanese brands such as Korchip and Elna.

Key Advantages Driving Replacement:

• Better cost efficiency
• Faster and more stable supply
• Responsive local technical support

Today, domestic suppliers account for over 90% market share in smart meter applications, achieving supply chain stability and independence.

Hongda Supercapacitors: Reliable Performance, Competitive Value

HONGDA Capacitors is an ISO9001-certified manufacturer, specializing in capacitors, inductors, and resistors, with strong capabilities in coin-type supercapacitors.

Key Advantages of HONGDA Coin Supercapacitors:

Technology Advantage

Use New Dry electrode technology for coin type super capacitors, removed Alcohol and water. Greatly improved quality, more stable, lower leakage, higher capacitance, and safety improvement.

Production & Equipment

Automatic production line and Continuous investment in new equipments

6,000,000 capacity per month

84 machines, have own developed equipments, and imported equipments

Raw material we use the best

Choose the best Capchem electrolyte for super capacitors, water level very very low, less than 20PPM

Quality Control

Products quality recommended by JiangHai, Eaton.

100% Full inspection.

Price & LT

Obvious lead time and prices advantage comparing with other Japanese, USA, Koren brands.

Excellent sales support

Perfect alternative and cost down

These are some of our popular coin supercapacitors:

1. HHT Series:

Characteristics:

① 85°C 1000 Hours 5.5V

② Long Charge and Discharge Life

③ Large Capacitance, High Monomer Consistency

④ RoHS, REACH Compliant

2. HCE Series:

Characteristics:

① Operation Temperature Range: -25℃ ~ 70 ℃

② Rated Operating Voltage: 5.5V

③ Available Type: V Type, H Type, C Type

④ 4weeks lead time.

We also manufacture radial supercapacitors. For more details, please visit the website link: https://www.hongdacapacitors.com/products/super-capacitor.html

We are ready to support you with stable quality, competitive pricing, fast delivery, and professional service.
Feel free to send us your inquiries — we’re happy to help!

Email: miya@hongdacap.com.hk

Mobile / WhatsApp / WeChat: +86 13798949920