Aluminum Electrolytic Capacitors: World Markets, Technologies & Forecasts 2026-2031

NEW MARKET STUDY- Twenty-four years of market data, twelve years of monthly lead times, and a five-year forecast for the capacitor behind AI data centers, EV powertrains, and every AC power supply on earth. 353 pages and 121 tables and graphs from Paumanok Publications, the passive component industry's source since 1988.

The capacitor the AI and EV build-out can't run without

Every AI server rack, EV inverter, solar inverter, and AC power supply depends on aluminum electrolytic capacitors. In FY2026 the world consumed about 118 billion pieces worth $4.99 billion, and Paumanok forecasts the market will reach $5.9 billion by 2031.

The market is not a simple growth story. Aluminum capacitors went through a record boom, a shortage, a hard correction, and now a new demand cycle driven by AI data centers. Lead times are moving again. Foil supply is concentrated in a few places. Polymer designs are taking share from liquid electrolyte. Chinese producers are gaining on the Japanese leaders.

This study gives you the data to see where the market is going before your competitors, suppliers, or portfolio companies do.

What makes this study different

• Data that reaches back to 2003. Value, volume, and pricing by year for 24 years, so you can see full cycles and not just the last two quarters.
• Monthly lead times from January 2015 to September 2026, tracked by configuration, with a quarterly forecast to December 2027. Paumanok builds this series itself every month.
• Raw aluminum prices by month from April 2012 to August 2026, matched against capacitor prices and lead times, so you can see how metal costs actually reach component pricing.
• Dedicated chapters on AI hyperscale and EV propulsion, with market size, product types, vendor shares, and forecasts to 2031 for both.
• Low, base, and high scenarios for value, volume, and price through 2031.

What's inside

Market structure and technology

• Where aluminum capacitors sit within the market for 54 types of passive components, with 156 months of industry activity data
• The full aluminum capacitor supply chain, from bauxite mining through foil processing, component manufacturing, and end-market consumption, including where value and risk concentrate
• Technology profiles of every configuration: radial leaded, SMD V-chip, polymer H-chip, axial leaded, snap-in, large can (screw terminal), and specialty types

Global market, 2003–FY2026

• Market value, volume, and average selling price by year
• Demand by configuration, with the long-run shift in product mix
• Five eras in aluminum capacitor pricing, from the China price reset to the 2022–2023 price spike and the correction that followed
• Nominal versus inflation-adjusted pricing

End-use markets

• Consumer audio and video, computers, servers and data centers, industrial, automotive, communications infrastructure, and specialty markets
• A sixteen-year comparison of revenue change by end-use segment

Regional and country markets, with forecasts to 2031

• Asia: China, Japan, Singapore, Korea, Thailand, Vietnam, Malaysia, India, and the Philippines, plus the top electronic component customers in China
• Europe: Germany, Hungary, France, Holland, the UK, the Czech Republic, and other European countries
• Americas: the United States, Mexico, Brazil, and Canada

Lead times

• Lead times by configuration, September 2025 versus September 2026
• The Paumanok Aluminum Capacitor Lead Time Index, weighted by market value
• How the AI data center cycle is moving through the aluminum capacitor family
• A month-by-month trend for each configuration, and what it means for buyers and investors

Competitive landscape

• FY2025 and FY2026 revenues and market shares for the top 22 manufacturers, including Nippon Chemi-Con, Nichicon, Nantong Jianghai, Aihua, Rubycon, TDK-EPCOS, Panasonic, YAGEO-KEMET, and Vishay
• Vendor market shares from FY2023 to FY2026
• Factories by country and production by region, including China's role as the production center, Japan and Taiwan's home-country production, and Southeast Asia as the "China-plus-one" base

Forecasts, 2026–2031

• Value, volume, and price, with low and high scenarios
• Forecasts by configuration, end-use market, world region, and country
• What drives the price forecast: raw materials, lead times, and product mix

Polymer aluminum capacitors

• Solid and hybrid polymer market forecasts to 2031, by type and end-use market
• The conductive polymer ecosystem, including the competition between polymer aluminum and polymer tantalum molded chips
• Polymer vendor market shares and market concentration

EV propulsion

• Aluminum capacitor use by EV sub-assembly: inverter, converter, on-board charger, and battery management
• A product matrix of automotive capacitor series by vendor, type, and sub-assembly
• Market by capacitor type, vehicle type, and vendor, with a forecast to 2031

AI hyperscale

• Aluminum capacitor consumption in AI data centers by application and type
• Vendor market shares and the forecast to 2031

Company directory

• Profiles of 30 manufacturers, each with a 2026 update and Paumanok assessment

Who buys this study

• Component manufacturers and materials suppliers planning capacity, pricing, and market entry
• OEM procurement and supply chain teams managing lead times and sourcing risk
• Distributors planning inventory through the next cycle
• Investment funds and analysts tracking AI, EV, and power electronics supply chains
• M&A advisors and corporate development teams running due diligence