EU Adds IEC 63275 Rule for SiC/GaN Imports

On August 5, 2026, the European Commission issued Implementing Regulation (EU) 2026/1893, setting a new compliance condition for SiC and GaN power semiconductor devices entering the EU. From November 1, 2026, imported products in these categories must be certified to IEC 63275:2025. For exporters, test planning, market access timing, and the CE marking authorization path now move into immediate focus, especially for suppliers serving Europe’s industrial power supply, electric vehicle OBC, and photovoltaic inverter segments.

What the Regulation Confirms

The confirmed facts are limited but commercially significant. The regulation was issued by the European Commission on August 5, 2026. It states that, starting on November 1, 2026, all imported silicon carbide (SiC) and gallium nitride (GaN) power semiconductor devices entering the EU must obtain certification under IEC 63275:2025.

The standard scope identified in the provided information includes thermal cycling reliability, gate oxide withstand voltage, and high-humidity high-bias stress testing. The same information also indicates that the rule directly affects product access, type-testing timelines, and the CE marking authorization path for Chinese export companies.

Where the Pressure Appears First

Export-facing device suppliers will face the earliest access risk

From an industry perspective, companies shipping SiC and GaN power devices into the EU are the first group exposed to operational impact, because the rule is tied directly to import eligibility. The immediate pressure is likely to appear in qualification planning, shipment scheduling, and documentation readiness for products intended for European customers.

Manufacturing and test functions may see longer front-end preparation

Analysis shows that the practical burden is not only commercial but also technical. Because IEC 63275:2025 covers thermal cycling reliability, gate oxide withstand voltage, and high-humidity high-bias stress, manufacturers and quality teams will need to pay close attention to whether existing type-test arrangements align with the new requirement. The key business issue is not only passing a test, but also managing the effect on lead times and release schedules.

European application markets may tighten supplier screening

What deserves closer attention is the downstream relevance for suppliers targeting Europe’s industrial power supply, EV OBC, and photovoltaic inverter markets. In these application areas, procurement and technical approval processes may become more sensitive to certification status, because the new rule affects market entry and the CE marking authorization path. Even where commercial demand remains unchanged, supplier selection criteria may shift quickly.

Supply chain and channel partners may need clearer compliance handoffs

For distributors, importers, and supply chain service providers, the issue is less about product design and more about transaction execution. The main concern is whether compliance evidence, test status, and supporting documents are available early enough to avoid delays at the point of import or customer acceptance. That makes document flow and compliance communication a more visible part of routine business handling.

What Companies Should Track Now

Check which product lines fall into the immediate scope

Companies exporting into the EU should first clarify which SiC and GaN power semiconductor devices in their portfolio are affected by the November 1, 2026 requirement. This matters because the regulation is tied to imports, so timing and destination market exposure are central to business impact.

Reassess type-testing schedules against the new certification gate

Analysis shows that type-testing cycles deserve immediate review. The provided information explicitly links the rule to type-testing duration, so businesses should examine whether current product qualification plans leave enough time for IEC 63275:2025 certification before planned EU deliveries.

Review the CE marking authorization path in parallel

What deserves closer attention is that the effect is not limited to a single certificate. The summary provided states that the new standard directly affects the CE marking authorization path. In practice, companies should treat technical testing, compliance documentation, and authorization sequencing as linked workstreams rather than separate tasks.

Prepare customer and supplier communication early

For teams handling sales, procurement, and delivery coordination, the near-term task is to reduce uncertainty in ongoing business. That includes aligning internal compliance status, preparing document responses for customers, and confirming whether external suppliers or service partners can support the required certification timeline.

How This Should Be Read at This Stage

Observably, this is more than a routine standards update because it introduces a defined compliance threshold with a clear effective date for imported SiC and GaN power semiconductor devices. At the same time, it is more appropriate to understand this as both an immediate operational change and a policy signal that product qualification standards are becoming more central to market access in this segment.

Analysis shows that the most important distinction is between confirmed requirements and broader market consequences. The requirement itself is already clear in the provided information: certification to IEC 63275:2025 becomes mandatory for relevant imports from November 1, 2026. The wider effects on pricing, supplier concentration, or redesign activity still require further observation and should not be treated as settled outcomes based on the current input alone.

Why the Industry Will Keep Watching

This development matters because it connects technical reliability testing directly with EU entry conditions for SiC and GaN power semiconductors. For exporters, especially those serving industrial power supplies, EV OBCs, and photovoltaic inverters in Europe, the issue is not abstract regulation but near-term execution risk around qualification, documentation, and approval timing.

At this point, the most balanced reading is that the rule represents a concrete short-term compliance change with potential longer-term implications for supplier readiness and customer screening. The immediate fact pattern is already actionable, while the broader commercial impact still needs continued observation.

Basis of This Article

This article is based on the user-provided news title, event date, and event summary concerning the European Commission’s August 5, 2026 release of Implementing Regulation (EU) 2026/1893 and the November 1, 2026 IEC 63275:2025 certification requirement for imported SiC and GaN power semiconductor devices.

For this type of industry update, relevant source categories would typically include official regulatory notices, company compliance statements, industry association updates, authoritative media coverage, and standards organization documents. A specific official source link was not provided in the input, so the exact publication record should continue to be verified. Continued attention should focus on any further official wording, implementation clarification, and practical compliance interpretation affecting import procedures, type-testing timelines, and CE marking authorization routes.