Murata Plans to Accelerate MLCC Capacity Expansion as AI Server Orders Force Partial Order Rejections
nashnova research
Murata Manufacturing (村田製作所), the world's largest MLCC maker, is weighing an accelerated rollout of its ¥80 billion capacity plan as AI server demand outpaces every internal forecast — CEO Norio Nakajima says the company has already had to reject orders.
Why is Murata suddenly fast-tracking expansion?
Each AI server requires roughly 15,000 to 25,000 MLCCs — multilayer ceramic capacitors, tiny components that stabilize voltage on circuit boards. Global data-center buildout is driving demand higher month after month.
In April, Murata budgeted roughly ¥80 billion over two years to lift MLCC capacity by 10 % to 15 %. It is now assessing whether part of that spending can be pulled forward.
This means → demand growth has already outrun the company's own forecast from just three months ago.
How tight is the capacity bottleneck?
Murata's plant in Izumo, Shimane Prefecture was expected to reach full capacity by 2030. AI orders may push it to the ceiling as early as 2026 — four years ahead of schedule.
The company's book-to-bill ratio — orders received divided by units shipped; above 1.0 signals a backlog — has stayed near 1.5 for an extended period and hit a record 1.47 at the end of June.
In plain terms = for every MLCC shipped, roughly half a unit of unfilled orders sits in the queue. CEO Nakajima confirmed the company "has had to turn away some orders."
Why did the CEO reverse course so quickly?
In late July, Nakajima publicly questioned the sustainability of AI data-center investment.
Just over two months later, on October 13 at the CEATEC 2026 trade show, he reversed that stance, saying demand "has climbed further" and disclosing the accelerated expansion plan.
This reflects how fast real procurement orders for AI servers ramped through the third quarter — fast enough to overturn the judgment of the industry's own leader.
What are rivals doing, and how does Murata respond?
TDK and Taiyo Yuden (太陽誘電) are exploring a joint-development alliance focused on AI-server MLCCs — two second-tier players attempting to close the gap together.
Nakajima's response was blunt: Murata can meet demand through organic growth and sees no need for partnerships at this stage.
He also denied any plan to exit automotive and general-purpose MLCC lines, stressing the company will keep serving high-volume markets while containing share gains by Chinese competitors.
This means → Murata's strategy is "hold every front, double down on AI" — concede no ground in commodity segments, and accelerate investment at the high end.
What does this mean for the market?
The capex amount, site selection, and timeline will be finalized before Murata's mid-term earnings release in late October — the next key data point to watch.
In plain terms = Murata's supply constraint has shifted from a projected risk to a present-tense pressure. Whether expansion can keep pace with the AI demand curve will set the tone for the entire MLCC supply chain.
市场有风险，内容仅供研究参考，不构成投资建议。