Analog and MCU Lead Times Stretch Past 26 Weeks

Distribution is where a shortage stops being a headline and becomes a purchase order. For most of 2026 the story was accelerators and memory. The third-quarter channel survey from UBS, published on 18 October, says the constraint has moved into analog, power management and microcontrollers — the parts that sit on nearly every board a contract manufacturer builds.

What the numbers say

Seventy-three percent of respondents are considerably or very concerned about supply shortages over the next six months, split between 70 percent of distributors and 76 percent of direct buyers, up three points on the quarter. Sixty-five percent report lead times extending, a share that has now grown for two consecutive quarters. Separate channel reporting this week put lead times at 26 weeks or longer on some Analog Devices and NXP product families, which is the range where a design cycle, not a production schedule, starts to slip.

Inventory tells the same story from the other side. On an index where the first quarter of 2024 equals 100, distributor unit inventories have fallen to 85 for true analog, down 7 percent on the quarter; 76 for power analog, down 10 percent; and 91 for MCUs, down 5 percent. Average selling prices moved the other way. The ASP index reached 158 for true analog, up 12 percent, and 149 for power analog, up 9 percent. Discrete pricing was the outlier, with average selling prices up 34 percent in a single quarter.

There is a detail in the survey that matters more than the headline. Thirty-eight percent of distributors now say supply is above their target level, up five points, and 26 percent of direct buyers say the same, up fifteen. But direct buyers’ supply adequacy has turned net negative at minus 4 percent. Read together, that says distributors are holding less than they want while their customers are already short. The buffer that normally absorbs a demand surprise is gone.

Who is pricing, and who is not

Pricing behaviour separates the suppliers who believe the cycle from those who do not. Texas Instruments has raised prices in both true analog and power analog while holding MCUs flat, a combination that reflects where its utilisation is tightest. Microchip has moved slightly down across all three categories as it works through its nine-point inventory plan, with inventory days at 175 in the second quarter, still above the industry average. onsemi has turned up in true analog after several quarters of decline.

That mix is useful for a buyer building a negotiation position. A supplier with falling prices is a supplier with capacity. A supplier with flat prices on one family and increases on another is telling you exactly which line is constrained — and which alternate is worth qualifying first.

The de-speccing risk nobody quotes

Barclays reported this month that designers are de-speccing to manage the memory shortage, and the same instinct is spreading to analog and MCU content: fewer channels, lower resolution, smaller flash, a narrower temperature grade. Tesla’s public reversal on AI5 memory capacity, from 72 GB to 96 GB after halving it, shows how quickly that decision gets revisited.

For a buyer, de-speccing is a quality question, not only a cost question. When a supplier proposes an equivalent part, ask what changed in the silicon, the package and the test flow, and get it in writing. A part that meets the datasheet but not the qualification report is a field failure waiting for a warranty claim.

Five moves for the next two quarters

• Rank your lines by exposure, not by spend. A 40-cent op-amp on a single-source line stops a 400-dollar assembly. Sort the BOM by number of qualified sources and weeks of cover, then work down.
• Ask for allocation, not a lead time. A catalog lead time is an average. Ask what quantity per month is committed, what happens to the balance, and whether the commitment survives a price increase.
• Use scheduled orders to buy time. Long-term supply agreements are now the normal mechanism in memory and are spreading to analog. Even a six-month schedule with monthly releases improves your position without committing the full volume.
• Qualify one alternate per critical line now. Pin-compatible second sources usually need a firmware retune, not a board spin. Doing it under a deadline costs ten times as much as doing it this month.
• Treat broker stock as a qualification decision. When the authorised channel is at 26 weeks, the grey market fills the gap. Test incoming material, verify date codes and humidity indicators, and never let broker stock into a safety-related build without a documented deviation.

The read for 2027

UBS expects distributor destocking to reverse as supply tightens, which means the inventory chart that has been falling all year is close to its floor. Buyers who waited for prices to soften have probably waited too long. The window between now and the Chinese New Year shutdown in early February is the cheapest coverage you will get for the first half of 2027.

We quote analog, power and MCU content with lead time and allocation stated line by line, and we flag single-source exposure before a build is committed. The families discussed here are listed in our component catalogue, and programmes that need the board assembled as well run through our PCBA service. Send a BOM through the inquiry form and we will return a sourcing review with alternates marked.