Electronic component shortages in 2026: BoM, AVL, second-source

When a critical part goes NRND, we arbitrate between three options: drop-in substitution (2 to 4 weeks of retest), dual-source qualification (8 to 12 weeks), or redesign with CE/RED re-certification (3 to 6 months). We have already run that full redesign for customers whose component had no alternative. Electronic component shortages stem from a structural imbalance between chip demand and foundry capacity: at AESTECHNO, an electronic design company based in Montpellier, we secure the Bill of Materials (BoM) through design for availability and documented dual-sourcing.

Contents

• Current shortage trends
• Root causes and impacts
• Strategies to secure your supply chain
• Named tools for component intelligence
• BoM and AVL validation during shortages
• Why stockpiling is not the answer
• What strategy when a critical component goes NRND?
• How AESTECHNO can help
• In short

Global semiconductor sales reached USD 791.7 billion in 2025, the highest annual total on record according to the Semiconductor Industry Association (SIA). Yet supply chains remain vulnerable: at the 2021 peak, MCU and MPU lead times went past 52 weeks according to Supplyframe, and whatever alternatives were in stock came at a steep premium. On mature nodes, relief depends on new fabs that take years to reach volume, even as McKinsey counts roughly USD 1 trillion of planned investment in new fabs through 2030. This article shares the actionable strategies we use to anticipate disruptions.

Current semiconductor shortage trends

A component shortage is a structural imbalance between global chip demand and foundry production capacity, amplified by regional concentration and obsolescence cycles enforced by foundries. The phenomenon hits every industrial sector, from automotive to IoT, and forces designers - whether Original Equipment Manufacturer (OEM) or Original Design Manufacturer (ODM) - to rethink their critical-component sourcing strategy.

2025 confirmed an acceleration of chip demand, driven by AI. Supply chains nonetheless remain vulnerable: the massive investments announced in new fabs (about USD 1 trillion through 2030, according to McKinsey) are not enough to close the immediate gap. Pressure persists through high infrastructure costs, geopolitical tensions, and talent shortages, revealing durable structural weaknesses. In our practice, the most impactful shortages hit components on mature nodes (40-130 nm) used in industrial and IoT products, precisely the parts our customers integrate the most.

• Uneven growth: Advanced chips (below 11 nm) for AI and cloud are prioritised because of their margin, leaving mature nodes (used across general electronics) under-capacity.
• Persistent disruptions: Conflicts in Ukraine/Russia and the Middle East, combined with climatic events such as hurricane Helene in 2024, which disrupted ultra-pure quartz supplies, compound delays.
• Regional concentration: DRAM production is concentrated in a handful of Asian manufacturers, and critical raw materials such as gallium or germanium are dominated by China.

These trends confirm a durable "supply-driven" shortage risk, with supply lagging demand and forcing companies to anticipate price hikes and longer lead times. Anticipating them is a board-level job as much as a purchasing one, and our DFM checklist for electronics covers the component section in detail, from multi-distributor availability to a documented second source and the NRND/EOL hunt.

What changed in 2026

Several developments documented in late 2025 and early 2026 refine the picture. Lead-time normalisation continues across many standard families, but stays partial: automotive MCUs and mid-range FPGAs keep a residual tension, and several foundries have issued process-transition PCNs that move parts closer to NRND status. The EU Critical Raw Materials Act, now in application, structures access to gallium and germanium, two materials subject to Chinese export controls. In parallel, the EU Chips Act and the US CHIPS Act fund new foundry capacity, but those fabs take years to reach volume production. The practical consequence: PCN monitoring and tracking of last-time buy windows stay a priority on every critical BoM.

Root causes and their impact on your electronic development

A shortage root cause is a structural or cyclical factor that widens the gap between component supply and industrial demand. These causes fall into four interconnected families: geopolitical tensions and trade restrictions, a shortage of qualified workforce, logistics and raw-material fragility, and regional concentration of production across a small number of foundries. Understanding them is essential to build a resilience strategy, because each family calls for a different answer: tariffs on trade flows push supplier diversification, the talent gap slows prototyping capacity, and port congestion plus chemical-transport restrictions lengthen deliveries.

The KPMG Global Semiconductor Industry Outlook 2025, the Semiconductor Industry Association, and ECIA all document the same pressures. For your electronic development, the impact is direct: higher component costs, longer lead times on strained families, and certification schedules that stack on top of supply delays. Shortages are not new, but today they are amplified by the four factors detailed below:

1. Geopolitics and trade restrictions

US-China tensions, between restrictions on advanced-technology exports and US tariffs, disrupt global flows. For electronics manufacturers (Integrated Circuit or IC in particular), this means higher costs and a need for alternative suppliers: the KPMG Global Semiconductor Industry Outlook 2025 notes that many products sourced from China carry an additional 25 percent US tariff. The Semiconductor Industry Association (SIA) and the Electronic Components Industry Association (ECIA) document the same pressures. Projects requiring CE or RED certification are particularly exposed, because homologation lead times stack on top of supply lead times.

2. Talent shortage

The sector is facing a global skills deficit: Deloitte estimates the industry needs more than one million additional skilled workers by 2030, or more than 100,000 a year. According to McKinsey, job postings for semiconductor technical roles in the US and the EU grew at a compound annual rate of more than 75 percent between 2018 and 2022, but attrition and an ageing workforce slow output. Impact: delays in prototyping and innovation for your electronics projects.

3. Logistics and material vulnerabilities

Long supply chains make disruptions costly. According to McKinsey, more mask layers and advanced packaging could raise total material consumption by as much as 60 percent in the US and 65 percent in Europe, and many of those materials will have to be imported. Insufficient port capacity and chemical-transport restrictions complicate deliveries.

These causes drive direct impacts: cost increases (in the KPMG 2025 survey, 35 percent of semiconductor executives expect a large impact from the cost of materials, assembly, and supplies), production delays, and rupture risks that threaten your time-to-market and competitiveness.

4. Measurable technical impact on critical BoMs

MCU lead times, counted in weeks before the crisis, went past 52 weeks at the 2021 peak before a partial normalisation that varies by family. On the AEC-Q100 automotive grade (operating range -40 °C to +125 °C), 100 V 40 A MOSFETs and multi-rail PMICs (3.3 V, 1.8 V, 1.2 V) have been among the most strained families, including from Texas Instruments, STMicroelectronics, Rohm, and Renesas. On the memory side, TrendForce reports that the three major DRAM makers have cut wafer allocations for DDR4 and other mature-node products in favour of HBM and AI-driven server DRAM, which leaves DDR4 at 3200 MT/s and LPDDR4 at 4266 Mbps directly exposed. Among passives, ceramic MLCC 10 uF 25 V 0402 capacitors and 4.7 uH 3 A power inductors have been chronic bottlenecks, with raised Minimum Order Quantities (MOQs) and longer lead times.

These technical orders of magnitude (datasheet references, not market speculation) drive the design: a low-power IoT product whose main rail is a PMIC moving from allocation into NRND sees its time-to-market slip 3 to 6 months if no Plan B exists. Keeping the firmware portable across pin-compatible MCU families softens that blow: our industrial embedded software guide covers the hardware-abstraction discipline that lets a part swap stay a hardware-only change.

Actionable strategies to secure your supply chain

A supply chain resilience strategy is the set of preventive and corrective actions that guarantee component availability across a product's full lifecycle. It covers sourcing, design, inventory management, and technology intelligence.

Our experience shows that the key is anticipation: companies that put these strategies in place before the crisis weather shortage periods with minimal impact on their projects. The six levers compared below are ranked by horizon and complexity: component dual-sourcing and a critical buffer stock act in the short term at low complexity, predictive analytics anticipates ruptures over the mid term, design for availability removes risk components at the design stage itself, while reshoring and the recycling of alternative materials are long-term, higher-complexity moves. Geographic diversification is gaining ground among chipmakers themselves. Here are the concrete solutions, tailored to industrial decision-makers:

• Diversify your suppliers: Move toward reshoring, nearshoring, or friendshoring to reduce concentration. For instance, increase geographic diversity, a move 47 percent of the semiconductor executives surveyed by KPMG planned for the following 12 months. At AESTECHNO, we audit your supply chain to identify reliable partners in Europe and the US. Outsourcing electronics design to an electronic design company also gives you access to a pre-qualified supplier network.
• Embed predictive analytics: Use modern tools to optimise demand planning and inventory (just-in-time with safety buffers). The goal is to anticipate ruptures instead of absorbing them.
• Invest in recycling and alternative materials: Faced with raw-material shortages, prioritise e-waste recycling and explore substitutes for materials such as gallium. The same squeeze hits manufacturing geography: our comparison of electronics outsourcing in China versus Europe walks through the supply-resilience trade-offs that shape where a board gets built.
• Tackle the talent gap: Partner with educational institutions to train experts, and roll out upskilling programmes. In the KPMG 2025 survey, employee training, upskilling, and development was the top answer semiconductor companies gave to the talent gap (37 percent).
• Adapt your contracts and plan for risk: Include commodity-price indexation clauses and develop crisis plans for geopolitical shocks. Building Design for Manufacturing (DFM) in from the start lets you select multi-source components and avoid references at risk of going short.
• Validate the prototype-to-series transition: When moving to industrialisation, verify the long-term availability of every component. Our methodology covers this critical step from initial specification.

At AESTECHNO, we have observed that projects that bake in a dual-sourcing strategy from the preliminary BoM significantly reduce their exposure to supply ruptures. By applying these strategies, you can not only mitigate risk but also accelerate your electronic innovation.

Named tools for component intelligence and sourcing

A component intelligence tool is a software platform that continuously aggregates the availability, pricing, and lifecycle status of electronic parts across distributors and manufacturers. It cross-references stock, MOQs, lead times, and PCN or EoL alerts to flag obsolescence risk on a BoM early.

In our daily practice, component intelligence relies on a well-identified trio of tools. Octopart and Findchips aggregate multi-distributor availability in real time (Digi-Key, Mouser, Farnell, Avnet, Arrow), exposing stocks, MOQs, and lead times; SiliconExpert and Z2Data deliver lifecycle alerts (Product Change Notification or PCN; Product Discontinuation Notice or PDN; End of Life or EoL) and obsolescence risk scores. We systematically cross-reference these sources with manufacturer datasheets (Texas Instruments, STMicroelectronics, Renesas, Rohm, Microchip, Silicon Labs) before validating a BoM. For certified projects, we trace alternatives sourced through AS6081-compliant channels (anti-counterfeit) from the sourcing phase, with cross-referencing in the Approved Vendor List (AVL). The whole stack is versioned alongside the Engineering Change Notices (ECNs) that document each substitution.

BoM and AVL validation during shortages

BoM and AVL validation is the line-by-line review that confirms every Bill of Materials reference has qualified, genuinely available sources on the Approved Vendor List. An AVL review answers three questions per line: how many approved manufacturers cover the reference, does any of them carry an active PCN, PDN, or NRND flag, and has a second source actually been qualified on hardware rather than merely identified on a datasheet. During a shortage, this review becomes the control loop of the whole sourcing strategy. Manufacturer PCNs and obsolescence notices from Texas Instruments, STMicroelectronics, Renesas, or Microchip set the clock, within the JEDEC JESD48 framework that leaves at least 6 months between the discontinuance notice and the last order, while lifecycle feeds from SiliconExpert and Z2Data and availability pulls from Octopart and Findchips tell you whether the approved alternatives are still buyable. Every substitution decided during the review is then recorded through an Engineering Change Notice, so the AVL stays the single traceable reference for procurement and production.

• AVL coverage review: flag every BoM line covered by a single approved manufacturer; those lines map to Tier 1 and Tier 2 of the criticality pyramid (Figure 1) and get mitigation priority.
• Multi-sourcing on the BoM: document 2 to 3 pin-compatible alternatives per critical line from schematic capture, so procurement can switch suppliers without opening an engineering loop.
• Lifecycle and PCN monitoring: subscribe every critical reference to PCN, PDN, and EoL alerts, and review the BoM against component lifecycles quarterly.
• Second-source qualification: promote alternatives from identified to qualified (Level 2 to Level 3 on the AVL maturity scale of Figure 2) with a pilot lot, EMC re-validation, and a documented ECN, under AS6081 anti-counterfeit compliance and IPC-1752A declarable-substance traceability.

Why stockpiling is not the answer

Component stockpiling is a strategy that ties up parts in quantity ahead of a rupture to absorb a lead-time spike. It is only a partial answer: it freezes cash, exposes parts to ageing, and risks obsolescence if the component reaches EoL before it is consumed.

Our experience shows that bulk component storage, the reflex answer to a shortage, is often the worst strategy. A component sitting on the shelf for 24 months can become EOL before it's consumed, electrolytic capacitors age even when unused, and tied-up capital blocks the cash that should fund a respin. Stock also gives no protection against a supplier decommit, the unilateral cancellation of an already-confirmed order that foundries fall back on during allocation, nor against the broker market, where parts sourced outside the authorised channel carry a real counterfeit risk. In our practice, real resilience comes from design for availability: choosing multi-source, pin-compatible components from schematic capture, and documenting 2-3 validated alternatives per critical BoM line.

What strategy when a critical component goes NRND?

The NRND status (Not Recommended for New Designs) is a warning signal issued by foundries: the component remains available for a limited period before transitioning to EoL (End of Life) and LTB (Last Time Buy). The JEDEC JESD48 standard requires the supplier's discontinuance notice to allow at least 6 months to place final orders and 12 months for final shipments; notices from Texas Instruments (ti.com) and STMicroelectronics (st.com) then give the exact dates part by part. The right response depends on the state of the Approved Vendor List: a pin-compatible drop-in closes the alert in a few weeks of functional retest, while a reference with no qualified second source can force a full redesign with EMC re-test and a fresh certification campaign. Price weighs on the decision too, because during tight periods a pin-compatible alternative routinely trades at a multiple of the original part. Rather than stockpiling at any cost, we arbitrate along three measurable axes:

• Drop-in replacement vs redesign: a pin-compatible drop-in (same package, same pinout, same instruction set) typically costs 2 to 4 weeks of functional retest; a full redesign means a new schematic, new layout, EMC re-test per CENELEC and IEC, and often a fresh certification campaign (3 to 6 months on top).
• Single-source vs dual-source BoM: a single-source component on a production product exposes you to a total stop. A dual-source design from the start, with alternatives validated by simulation and pilot lot, absorbs a rupture without interruption. The JEDEC standards (packaging, reliability) and IPC-6012 (PCB Class 2/3) make this substitution easier because formats are normalised.
• Price variation on alternatives: on a pin-compatible MCU, the available alternative can cost markedly more than the original part during tight periods, not counting grey-market spikes. The decision must factor that delta over 12-24 months before choosing stockpile vs redesign.

In our practice, when we spot a PCN or PDN alert on an active BoM component, we launch in parallel both the qualification of an alternative and a partial-redesign evaluation. The team that has both options ready by Q+1 keeps control of its schedule - not the team stockpiling blind.

How AESTECHNO can help

AESTECHNO is an electronic design company based in Montpellier, specialised in designing embedded systems that are resilient to supply chain pressure. We bake supply chain risk management into the specification phase, to ensure your products' longevity.

Our team, with more than 10 years of electronic design experience, supports customers on these topics, combining technical expertise with deep knowledge of the components market. As an electronic-systems design firm, AESTECHNO excels at supporting industrial customers in securing their supply chains and selecting components and solutions that last over time. We deliver tailored audits, resilient designs, and partnerships for fast prototyping. Writing a solid electronics specification upstream lets us anticipate these supply constraints before development even starts.

When a key component becomes unavailable, we can for instance evaluate a migration toward an FPGA architecture or propose a fast redesign with pin-compatible alternatives. Product validation and testing then verifies that replacement components meet the original specification, ruling out any counterfeit risk.

Our concrete experience with shortages. At AESTECHNO, we have helped several customers overcome component shortages by finding viable alternatives (pin-compatible substitution, family change, second-source requalification). In the hardest cases, when no substitution was available, we ran full redesigns of the product to work around the rupture. That dual capability - arbitrating quickly between substitution and redesign - is what separates a team that suffers the shortage from a team that keeps control of its schedule. In our practice, we have observed that the decision turns on three criteria: real availability of the alternative over 12-24 months, impact on certification already obtained, and the comparative cost of redesign vs the cost of waiting.

Contact us for a free consultation and turn your challenges into competitive advantages. AESTECHNO has worked on biomedical sensor projects and various medical devices, areas where a component rupture without a Plan B can freeze a certified product for a quarter.

Bottom line: how to ride out shortages without taking the hit

Semiconductor shortages are not solved with stockpiles but with design discipline: dual-sourcing baked into the BoM, systematic reading of PCN/PDN alerts via Octopart, SiliconExpert, and Z2Data, pin-compatible alternatives documented and requalified on a pilot lot. A rupture does not get fixed by faxing a broker: resilience comes from design for availability, choosing JEDEC/IPC-normalised components, avoiding single-sources, and anticipating NRND well before EOL.

At AESTECHNO, an electronic design firm based in Montpellier, we arbitrate every project across three options: drop-in substitution (2 to 4 weeks of retest), dual-source qualification (8 to 12 weeks), or full redesign with CE/RED re-certification (3 to 6 months). It is that multi-option reading, not panic stockpiling, that turns a component rupture into a non-event for the production schedule.

• Audit the BoM line by line with Octopart, SiliconExpert, and AEC-Q100 / AEC-Q200 automotive-grade scoring before tape-out, never after.
• Document two qualified suppliers per Tier 1 critical line under IPC-1782 traceability and ISO 9001 process audit, with JEDEC-aligned package and reliability matching.
• Read the regulatory backdrop: the EU Critical Raw Materials Act and the US CHIPS Act reshape gallium, germanium, and mature-node availability over the coming years.
• Avoid panic stockpiling: a 24-month buffer ages and ties up cash that should fund the redesign that closes the rupture for good.

Related articles

• Embedded power management: 3 years on battery - methodology for autonomous IoT products
• From idea to certified product - full design methodology
• CE RED certification for IoT - regulatory framework for the European market
• FPGA board design - architectural alternative when an MCU goes NRND
• I2C bus protocol - sensor-bus standardisation that simplifies component swaps
• Rescue a failed electronics project - audit and recovery plan when a shortage has already stalled a build
• PPE resin shortage - the same supply squeeze hitting high-performance PCB laminates

FAQ: electronic component shortages and supply chain management

What are the main causes of electronic component shortages?
Demand spikes (the 2020-2021 COVID-19 surge, 5G, electric vehicles, AI), limited fab capacity (a semiconductor plant takes years to build), geopolitics (US-China and Taiwan tensions), natural disasters (fab fires, droughts hitting production), manufacturing concentration (92 percent of below-10 nm capacity in Taiwan per SIA/BCG, 2021). Critical components: MCUs, PMICs, power MOSFETs, specialised passives.

How to anticipate shortages and secure supply?
Proactive strategies: systematic dual-sourcing (2-3 suppliers per critical component), weekly lead-time monitoring (Octopart, Findchips), design for availability (avoid exotic / end-of-life components), direct manufacturer relationships, advance orders (6-12 months vs the usual 2-3 months), buffer stock for long-lead parts. Tools: PCN (Product Change Notification) tracking, lifecycle analysis (components older than 5 years carry EOL risk).

What to do if a key component is out of stock?
Short-term alternatives: authorised brokers (watch out for counterfeits), redesign with a pin-compatible part (e.g. STM32F4 to STM32G4), manufacturer allocation negotiation (guaranteed future orders), grey market (authenticity verification critical). Mid term: board redesign with available components, technology change (e.g. FPGA to MCU if volume drops). AESTECHNO supports these urgent migrations with rapid validation.

How to detect counterfeit components during a shortage?
Risks: recycled / re-marked components, non-compliant specifications, compromised reliability. Tests: visual inspection (suspicious markings, repolished packages), XRF analysis (metal composition), decapsulation (die inspection), full functional tests, COC traceability (Certificate of Conformance). Buy only from authorised distributors (Digi-Key, Mouser, Farnell) or directly from manufacturers. For brokers: verify accreditations (AS6081, ISO 9001).

What design strategy reduces shortage impact?
Design for supply chain resilience: prefer multi-source components (industry-standard, not custom), avoid latest generations (immature supply), prefer wide-temperature / automotive-grade parts (better availability), use footprints compatible with multiple references (e.g. standard SOT-23 vs exotic package), modularity that enables variants. Doctrine: "Design for what's available, not what's optimal." Review the BoM quarterly against component lifecycles.