Enphase Energy and Infineon Announce World's First 900 V GaN Bidirectional Switch Devices for AI Data Center Solid-State Transformers

What happened

Enphase Energy and Infineon announced that Enphase will deploy the world's first 900 V gallium nitride monolithic bidirectional switch devices, designed for Enphase solid-state transformer power modules used in AI data centers.

Confirmed

Global impact / market context

These 900 V devices let Enphase use parts rated below 1 kV, which means it can build simpler single-stage power conversion with fewer points of failure. That could lower costs and widen design options in data center power hardware.

Analyst inference

The announcement positions Enphase in medium-voltage power conversion, an area typically handled by silicon carbide, which means a rival chip material. Success could shift component sourcing and design choices across data center and industrial power supply industries.

Analyst inference

What to watch

1. Enphase says it has already brought 650 V GaN bidirectional switch devices into volume production, and its GaN technology is operating in IQ9 Microinverters deployed in the field. Confirmed
2. Watch whether Enphase moves the 900 V devices from demonstration into volume production and names customers, since the article describes deployment plans rather than shipping products. Proposed
3. Track adoption versus silicon carbide in medium-voltage systems; if the GaN parts prove reliable, power module makers could redesign around lower-rated components and alter supplier choices. Analyst inference

Evidence

• globenewswire.com