Supply Chain Pressure on U.S. Electronics Buyers, and Where to Source Next

Planning a build is harder when the supply chain no longer prices the way it did two years ago. In July 2026, the average US effective tariff rate was 6.7%, down from the IEEPA spike after the Supreme Court struck those tariffs down in February. China is a different case. Penn Wharton Budget Model put the effective tariff rate on Chinese goods at 22.8% that month, the highest among major trading partners. Goods from Canada and Mexico that qualify under USMCA sit in a better position. In July, 80.2% of those imports claimed a USMCA exemption.

That difference shows up on the invoice before it shows up in a redesign. In the Global Electronics Association’s September 2026 survey, 79% of electronics manufacturers reported rising material costs. The Profit Margin Index returned to neutral after falling in August, and the association said that recovery was fragile. Firms were depending on pricing, productivity, and product mix to hold margin. HVAC buyers saw the same pattern in finished goods. ACHR News opened 2026 with controls averaging a 6.5% increase, on top of compressor, coil, and air-handler increases.

Availability is tightening at the same time. The Global Electronics Association’s August 2026 survey found that 64% of electronics manufacturers had limited component and materials availability or extended lead times. None described supply as readily available with excess stock. Lead times were longer in Q2 than in Q1 for 53% of respondents. Memory, PCB laminates and resins, microprocessors, and passive components were all named as sources of disruption. A missing MCU or a late laminate lot stops the line even when the mechanical design is frozen.

What a single-country supply chain costs you

A supply chain tied to one build country turns every policy change into a price change. Section 301 duties on China did not go away with the IEEPA ruling. Steel and aluminum, common in enclosures, coils, and some connector hardware, carried a 40.5% effective tariff rate in July 2026. If you can’t move assembly, you also can’t move the country-of-origin decision. When the board is substantially transformed in China, the Chinese rate follows the shipment into the United States.

Time is the second cost. When 44% of manufacturers said component availability worsened from Q1 to Q2 2026, and only 10% saw improvement, safety stock becomes a purchasing decision. Low-volume control boards are the hard case. The lot size does not shrink because the SKU is small, and a last-time buy on a relay or display sits on one program.

The third cost is a quote that expires before the PO is placed. IPC’s May 2025 survey found 53% of electronics manufacturers delaying investment or sourcing decisions because of tariff uncertainty. Buyers need a supply chain that can re-quote from more than one country without reopening the approved vendor list from scratch.

How to source around the constraint

Keep component sourcing where the parts are made. Put assembly where the duty and the lead time make sense. China still matters for custom and hard-to-find components. A board that is assembled, tested, and loaded with firmware in another country can take that country’s origin, if the work meets the substantial-transformation test.

USMCA-qualified goods from Canada can enter the United States without the China duty when rules of origin are met. Vietnam, India, and the Philippines give you a second and third quote when a China build no longer clears the cost target. Avnan builds electronic controls for OEM partners in China, Vietnam, India, and Canada, with further options in the Philippines and Colombia. That is a sourcing choice. It is not a claim that any one country is closed.

Design has to be portable, or the second country is only a name on a slide. A control locked to one ODM’s footprint, one MCU, and one unapproved alternate can’t move when laminates slip or a tariff changes. Architecture, hardware, and firmware work are design services, and design services are not dutiable goods. The prototype can be. Confirm entry treatment before a sample ships, including whether a Temporary Importation under Bond applies if the unit is coming in for test only.

The same approach covers boards already under cost pressure: heat pump, fan coil, and ERV controls that share I/O instead of carrying a unique PCB per SKU. Fewer unique boards means fewer lists to dual-source when the supply chain tightens.

Key Takeaways

• In July 2026 the US effective tariff rate was 6.7%, while the rate on Chinese goods was 22.8%.
• A supply chain with one build country leaves you exposed when that rate, or a component lead time, moves.
• In August 2026, 64% of electronics manufacturers reported limited availability or extended lead times, and 53% said lead times had lengthened since Q1.
• Keep sourcing in China when the parts are there, and assemble in Vietnam, India, Canada, the Philippines, or Colombia when origin and duty need to change.
• Ask for a second-country quote before the next price notice, not after the line is short parts.