Infineon’s Silicon Carbide Offensive Puts a Fresh Face on AI Data Center Power

Infineon shares surge 155% as CoolSiC JFETs and NVIDIA integration tackle data center power density; Deutsche Bank lifts target to €90.

The race to cool and power the world’s fastest-growing compute clusters has a new bottleneck: electricity. Infineon is betting its silicon carbide portfolio can turn that constraint into a growth engine, and the market is pricing in that story with conviction. The Munich-based chipmaker has just marked its highest share price since the dot-com era, touching €89.67 on Wednesday before easing to €86.48 later that day—a 1.78% dip but still deep in record territory.

Investors are weighing a remarkable 12-month run of roughly 155% against a technical picture that screams overextension. The stock now trades 53.42% above its 50-day moving average and more than 105% above its 200-day line. The relative strength index, at 63.0, has backed away from the extreme overbought zone of 82-plus that appeared in the primary article, but the 30-day annualized volatility of 60.66% leaves little room for error. At €87.70 in more recent trading, the shares hover just under the fresh high, having added 52.09% in the last month alone.

Hardware That Tackles the Power Density Crunch

Infineon’s answer to the energy squeeze inside hyperscale data centers is a raft of new CoolSiC JFETs spanning 750V and 1200V voltage classes. These components are engineered to slash the electricity consumed by cooling systems as server loads surge. Mass production of the latest package variants is slated to begin this year. The company also unveiled a 24-kW reference design for backup battery units in 800V DC bus architectures—a setup that claims more than 99% efficiency and a power density of 450 watts per cubic inch. By combining 650V and 1200V silicon carbide parts, Infineon aims to shrink the physical footprint of power stages inside modern server racks.

Tying Closer to NVIDIA’s Ecosystem

Perhaps the most strategically significant move is Infineon's deepening integration with NVIDIA. The new power solutions are designed to slot into the NVIDIA MGX AI Factory ecosystem, reducing integration complexity for customers. On the security front, Infineon is embedding its OPTIGA TPM SLB 9672 module into the NVIDIA Jetson Thor platform, offering quantum-resistant hardware-level protection. That positioning aligns neatly with the EU Cyber Resilience Act and the EU AI Act—two regulatory frameworks that will require AI hardware to meet higher security and transparency standards. Infineon is betting that compliance will become a competitive differentiator.

Analyst Optimism and Capacity Expansion

Deutsche Bank recently reaffirmed its buy rating and lifted its price target to €90, arguing that structural demand from the energy transition and industrial automation remains intact. The bank’s call will face an immediate test next week at the PCIM Europe trade fair, where Infineon is expected to provide concrete order outlooks for its new AI-targeted components.

On the operational side, the company is pouring roughly €5 billion into its new Smart Power Fab in Dresden. For fiscal 2025, Infineon posted revenue of €14.7 billion and employed around 57,000 people. It has also partnered with Munich-based start-up ExoMatter on AI-driven materials discovery, a venture that recently closed a €1.7 million pre-seed round.

The core narrative is clear: Infineon is building the silicon carbide plumbing for the next generation of AI infrastructure. Whether the stock’s stretched valuation can absorb further upside will depend on how quickly that engineering prowess translates into design wins inside the world’s biggest server farms.