Samsung Electro-Mechanics (SEMCO) has extended MLCC lead times to 52 weeks — a full year of waiting. According to Meritz Securities data cited by the Wall Street Journal, delivery times for low-capacitance, high-capacitance, and automotive MLCCs stretched from just over 30 weeks in September 2026 to 52 weeks in October 2026, meaning some customers ordering today will not receive components until late 2027. The passive-component supply squeeze is no longer a warning; it is the new baseline.
For industrial automation operators, the implications are direct: control systems, drives, and power supplies all depend on multilayer ceramic capacitors, and the cost-and-delivery pressure on these parts is not expected to ease before 2027.
The Numbers at a Glance
-
52 weeks lead time — across low-capacity, high-capacity, and automotive MLCC lines at Samsung Electro-Mechanics, up from ~30 weeks one month earlier (Meritz Securities, via WSJ).
-
₩2.4 trillion in long-term MLCC supply contracts signed by SEMCO to date in 2026, including an additional ₩285.6 billion deal announced this month (Yonhap Infomax).
-
₩1.0722 trillion AI-server MLCC deal — SEMCO's largest long-term MLCC contract ever, locking supply for calendar year 2027 with a single global customer.
-
15%–35% price increases announced by major manufacturers including Murata and Taiyo Yuden for high-capacitance MLCCs used in AI servers.
-
15%–20% spot-market gains across general MLCC categories since late February 2026.
Why AI Servers Are Draining the MLCC Supply
AI servers consume high-capacitance MLCCs at multiples of the volume used in conventional IT hardware, and hyperscaler demand is growing faster than capacity can be added. The result is a chain reaction across the component industry:
-
Capacity reached full utilization. Murata initially announced price increases only for magnetic beads, power inductors, RF inductors, and common-mode filters — then expanded them to MLCCs as production lines filled to capacity (Investing.com).
-
Supply is being locked up early. Global customers are racing to sign 2027 supply contracts. With over ten long-term agreements already signed, SEMCO's largest-ever ₩1.0722 trillion deal assigns much of next year's output before it is even produced.
-
Q3 earnings confirm the shift. SEMCO's profitability beat expectations on MLCC and FC-BGA package-substrate price hikes, with analysts expecting AI demand to keep supporting prices through 2027 (Yonhap Infomax).
AI-server power density is the deeper driver. Just as power buffering became the bottleneck in data-center electrical design — a challenge Siemens addressed by investing in supercapacitor maker Skeleton Technologies — the passive components that filter and stabilize every power rail are now the scarcest link in the compute supply chain.
What Industrial Automation Buyers Should Do Now
Industrial control hardware embeds MLCCs everywhere: PLC power supplies, I/O modules, servo drives, HMI boards. A modern power-supply module such as the GE IC695PSD040 or GE IC693PWR330 contains dozens of ceramic capacitors on its DC-DC stages. When OEM production lines slow for lack of passives, spare parts and surplus channels become critical. Practical steps:
-
Audit your long-lead BOM now. Identify spare parts with MLCC-heavy designs and check current stock coverage against a 52-week worst-case replenishment window.
-
Buy ahead of failure, not after it. Lead time, not price, is now the dominant risk for critical spares. Buffer stock on power supplies and drive electronics pays for itself in avoided downtime.
-
Use tested surplus and refurbishment channels. Certified pre-owned modules from established suppliers bypass the OEM queue entirely.
-
Consolidate vendors that hold inventory. Fewer, deeper sourcing relationships beat spot-buying in a shortage market.
How Long Will the Squeeze Last?
The 2027 contracts cut both ways. For manufacturers, they de-risk demand and justify capacity expansion; for buyers, they mean spot-market availability will stay thin well into next year. Ceramic capacity additions typically take 12–18 months from decision to qualified output, so meaningful relief is unlikely before late 2027 — and price normalization will lag that. For AI-server-grade high-capacitance parts, expect tightness to persist longest.
Key Takeaways
- MLCC lead times at Samsung Electro-Mechanics have doubled in one month to 52 weeks across all major product lines.
- ₩2.4 trillion in long-term contracts — including the largest AI-server MLCC deal ever signed — have locked up future supply through 2027.
- Price increases of 15%–35% for AI-server-grade parts and 15%–20% on the spot market confirm structural, not cyclical, tightness.
- Industrial automation buyers should audit long-lead spares immediately and lean on tested-surplus channels to bypass OEM queues.
Need PLC power supplies, drives, or control modules without the year-long wait? Contact PLC Source PRO for current stock, pricing, and tested-surplus options.
Frequently Asked Questions
What is the current MLCC lead time?
As of October 2026, Samsung Electro-Mechanics quotes 52 weeks for low-capacitance, high-capacitance, and automotive MLCCs — up from roughly 30 weeks in September 2026, according to Meritz Securities data cited by the Wall Street Journal.
Why are MLCC prices increasing?
AI servers consume large volumes of high-capacitance MLCCs, and hyperscaler demand has pushed production capacity to full utilization. Manufacturers including Murata and Taiyo Yuden have announced 15%–35% price increases for AI-server-grade parts, while spot prices across general categories have risen 15%–20% since February 2026.
How long will the MLCC shortage last?
Contracts signed in 2026 reserve most 2027 output, and new ceramic capacity takes 12–18 months to qualify. Most analysts expect tight supply conditions to persist through 2027, with AI-server-grade high-capacitance parts remaining the tightest segment.
Sources: Samsung Electro-Mechanics disclosure · Yonhap Infomax · Investing.com · 36Kr