Domestic Substitution: Window of Opportunity and Key Areas for Breakthroughs

[Opinion] Supply-chain security and cost pressures are jointly creating an opportunity for the domestic substitution of MLCCs. In consumer‑grade and general‑purpose industrial applications, large‑scale deployment has already been fully launched; meanwhile, in automotive‑grade and RF/microwave segments, these markets remain high‑value competitive strongholds. Domestic manufacturers, led by Yuanqi Juguang, have already achieved mass production of both RF/microwave capacitors and general‑purpose capacitors. Over the next three to five years, the industry will enter a critical phase of transitioning from “substitutable” to “the preferred choice.”

I. The driving force has shifted from cost to safety. In the early stages, domestic substitution relied primarily on price competitiveness and delivery reliability, achieving initial breakthroughs in the consumer electronics sector. In recent years, geopolitical tensions and the risk of supply-chain disruptions have prompted automakers and telecommunications equipment suppliers to proactively introduce second- and even third-tier suppliers, significantly boosting their willingness to certify new components. As a result, the driving force behind substitution has shifted from “cost reduction” to “ensuring supply continuity,” providing domestic parts manufacturers with valuable opportunities for validation and market entry.

II. Boundaries That Have Already Been Crossed and Those That Remain Un crossed. For conventional mid‑range MLCCs—whose capacitance values span the nF to µF range and whose rated voltages conform to standard specifications—domestic manufacturers have largely closed the gap with international competitors in terms of yield and consistency, and their market share continues to grow. However, in high‑capacitance applications (exceeding several tens of µF), high‑voltage ratings, automotive‑grade long‑life requirements, and RF/microwave circuits with stringent Q‑factor demands, significant gaps remain in material systems, multilayer fabrication processes, and reliability databases. Consequently, merely meeting specified parameter tolerances is insufficient to guarantee device reliability under real‑world operating conditions.

III. The core bottleneck lies in “materials + equipment + data.” First, the particle size distribution and dispersion stability of ultrafine barium titanate powder directly determine the dielectric constant and its consistency. Second, the precision of thin-film printing and atmosphere‑sintering equipment dictates yield and the maximum number of layers that can be achieved. Third, both long‑term failure rates and the accumulation of automotive‑grade validation data—neither of which can be rapidly improved through capacity expansion—require time to build up and necessitate collaborative validation with customers.

IV. Bridging Differences in Approaches. One category of manufacturers pursues a “deep vertical integration” strategy—building their own material‑supply systems, establishing automotive‑grade production lines, and conducting joint validation—making it easier to break into the high‑end market. Another group relies solely on capacity expansion, leaving them highly vulnerable to price wars in the mid- and low‑end segments. Moreover, acquiring high‑reliability product lines and stable customer bases through mergers and acquisitions is another effective way to rapidly strengthen capabilities; however, the integration process poses significant challenges.

◆ Perspectives and Analysis: Manufacturers that possess independent material‑supply capabilities, automotive‑grade production lines, and the capacity to conduct joint validation with customers will be the first to achieve breakthroughs in the high‑end market; simply expanding capacity alone is insufficient to build a sustainable competitive moat. From a sales perspective, domestically produced components should anchor their value proposition on “verifiable reliability data,” rather than relying solely on price competition.