Murata walks away from phone and car capacitors to feed AI servers

Murata begins cancelling parts its customers still design in

Murata, the world's largest maker of multilayer ceramic capacitors, has begun telling customers it will discontinue some commodity MLCCs used in information-technology equipment and some automotive parts, industry officials said on 25 September 2026↗ ¹. DigiTimes reported on 10 September↗ that the company would gradually end production of several MLCC part numbers as AI demand pressures supply chains ².

MLCCs sit in nearly every electronic device made, smartphones, televisions and cars included, which is why the trade calls them the rice of the electronics industry ¹. The world's biggest rice supplier is now choosing which customers keep getting fed.

Ten times the layers, one capacitor out

AI-server MLCCs stack roughly ten times as many dielectric layers as commodity parts, so inside a fixed factory every AI-grade unit displaces a commodity one ¹. Samsung Electro-Mechanics holds about 40% of the AI-server MLCC market; with Murata, the two are estimated to control nearly 90%, a seller's market in which SEMCO's first-half MLCC average selling price rose 13.9% ¹.

The strain shows in the order books. Murata's fiscal first-quarter orders-to-backlog ratio hit 1.27, past the 1.25 peak that opened the industry's worst shortage in 2018 ³, and TrendForce puts general-purpose MLCC inventories below 30 days↗ ⁴. Murata is not repricing its oldest parts so much as leaving them.

The buyer's bill lands in the fourth quarter

SEMCO raised prices across its entire MLCC lineup by 30% from early August↗, automotive and industrial parts included ⁵. TrendForce expects consumer-grade X5R up a further 25-30% in the fourth quarter and AI-server X6S up 10-20%↗ ⁶, and SEMCO is set to extend the rises to direct-supply prices for OEMs and ODMs↗ ⁷.

X5R sits in phones, PCs and cars, and a 25-30% jump on a part that goes into every unit built suggests the bill lands somewhere: the buyer's margin or the consumer's sticker. No phone, PC or car maker has said a word in public since the notices went out. The paying side of this story is, so far, silent.

Taiwan and China inherit the orders

Yageo's August revenue rose 51.8% to NT$16.33 billion, about US$510 million and a monthly record, with third-quarter factory utilization guided above 90% ¹. TrendForce names Yageo, Walsin and China's Viiyong as the third-quarter beneficiaries of the X5R squeeze ¹³.

Walsin cannot ship on time; its president says the big suppliers are cutting consumer capacity and other makers are taking the transferred orders ¹. DB Financial Investment argues switching barriers for IT MLCCs are low, so Murata's halt moves volumes fast ¹, and Chinese suppliers are already in qualification with Dell, HP, ASUS and Acer↗ ⁸.

A 62.89x multiple that only prices the AI side

Murata closed 25 September at ¥8,022↗, up 2.54% on the day and 147% since January, a ¥14.54 trillion market cap on 62.89x trailing earnings ⁹¹⁰. That follows a 33.9% slide across 90 days this summer and a rebound built on analyst estimate upgrades↗ ¹¹; consensus stays Buy, 18 analysts, average target ¥10,413.89↗ ¹⁰.

The AI side of that price is already contracted: SEMCO alone holds an AI-server MLCC agreement worth about 1.07 trillion won covering all of 2027 ⁶. Relief is slower elsewhere. Murata has committed about ¥80 billion of MLCC equipment through fiscal 2027 to lift capacity just over 20%, and a three-to-five-year build under study may be, as reported, "more aggressive than ever" ⁶. None of it lands before the buyers' fourth quarter.

The tell arrives on 30 October

Murata reports earnings on 30 October 2026 ⁹. Watch whether fourth-quarter X5R contracts settle inside the 25-30% band, and whether Murata's discontinued part numbers reappear in the qualification queues of Taipei and Shenzhen. The rice is being rationed, and the replanting takes years.