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Logistics 2026-06-18

SiC and GaN Power Module Shipments Diverted as Panama Canal Restrictions Tighten

Global logistics for Silicon Carbide (SiC) and Gallium Nitride (GaN) power modules are facing significant disruptions due to escalating draught restrictions at the Panama Canal. Suppliers are being forced to re-route shipments, impacting lead times and increasing freight costs for EV and industrial power applications.

The critical supply chain for high-performance Silicon Carbide (SiC) and Gallium Nitride (GaN) power modules is currently navigating severe logistical headwinds. The Panama Canal, a vital artery for East-West shipping lanes, has implemented unprecedented draught restrictions and transit slot reductions. These measures, driven by prolonged drought conditions impacting water levels in Gatun Lake, are forcing component manufacturers and distributors to seek alternative, often longer and more expensive, shipping routes for their power electronics.

The repercussions are particularly felt within the electric vehicle (EV) sector, where SiC and GaN modules are indispensable for efficient power conversion. Automakers and Tier 1 suppliers are now facing extended lead times for these high-value components, threatening production schedules already under pressure from persistent demand. The shift from the canal route to around the Cape of Good Hope or utilizing intermodal land bridges across North America adds weeks to transit times and significantly inflates cargo insurance and fuel surcharges.

Freight forwarders report a surge in demand for available shipping capacity on alternative routes, further exacerbating costs. For instance, a typical container carrying SiC/GaN modules from Asia to the U.S. East Coast via the Panama Canal would experience a certain transit time and cost; now, avoiding the canal could add 10-15 days and up to a 20-30% increase in freight expenses. This directly impacts the landed cost of crucial power electronics, potentially trickling down to the pricing of EV components and industrial power supplies.

Component suppliers specializing in advanced power semiconductors, including major players like Infineon, Onsemi, STMicroelectronics, and Wolfspeed, are actively working with their logistics partners to mitigate these disruptions. Strategies include increased reliance on air freight for critical, high-value shipments, pre-booking future vessel slots months in advance on less congested routes, and exploring warehousing options closer to end-user markets to absorb lead time variations. However, these solutions often come at a premium, adding to the operational overhead.

Procurement professionals in the EV and industrial power sectors are advised to reassess their inventory strategies and re-evaluate forecasted lead times for SiC and GaN power modules. Diversifying sourcing locations and securing buffer stock, where feasible, could help cushion against the ongoing uncertainties stemming from these Panama Canal limitations and the broader impact on global maritime logistics. The situation underscores the fragility of global supply chains to environmental factors and the need for robust contingency planning.