Wolfspeed Introduces New 3.3 kV SiC Power Modules in Two Industry-Standard Footprints to Address the Surging Demand for Energy

DURHAM, N.C.--(BUSINESS WIRE)--May 21, 2026--

Wolfspeed has introduced two new 3.3 kV silicon carbide (SiC) power module families – including high-power half-bridge baseplate modules and scalable full-bridge baseplate-less modules in industry-standard footprints — that are purpose-built to address the rapidly approaching power constraints driven by AI data centers and the broader energy transition. Meeting this moment requires power generation, conversion, and distribution that is faster, smaller, more efficient, cost-effective, and more resilient than anything silicon alone can deliver. These new module families give engineers the tools to modernize energy infrastructure across the entire energy life cycle.

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"The release of this 3.3 kV MOSFET voltage node in two complementary footprints was a strategic decision," said Guy Moxey, vice president of Wolfspeed's Industrial & Energy business. "We understand the urgency our customers are facing to scale power infrastructure, and these two families enable both established grid-scale players and emerging players with modular architectures to move quickly. We are giving engineers the tools to build the grid of tomorrow, today — and only by working together can we successfully address the surging demand for power and unlock the full potential of AI and electrification."

Your System — Your Choice

The two 3.3 kV families enable design engineers to reduce power stages and move to a 2-level topology for 2 kV and higher DC-link architectures — with the choice of baseplate and baseplate-less SiC power modules.

The high-power half-bridge baseplate SiC power module (LM platform) is designed for >800 amp (A) applications and optimized for demanding converter topologies used in solar, grid-scale energy storage, and wind-power infrastructure.

The scalable full-bridge baseplate-less (part of the Wolfspeed WolfPACK® family) SiC power module is engineered for modularity, offering flexibility to configure multi-level, series-stacked, or parallel converter architectures with consistent, matched performance — and is optimized for solid-state transformers (SSTs) and modular renewable energy infrastructure.

Purpose-Built for Continuous 24/7, 2 kV+ DC-Link Operation

Both families are engineered for the relentless demands of always-on infrastructure. The Wolfspeed WolfPACK® module leverages cutting-edge sintered die attach and epoxy encapsulant material to deliver a significant improvement in power cycling performance over standard silicon gel encapsulated modules. Similarly, the baseplate module achieves improved system durability and power cycling through advanced packaging technology featuring sintered die attach and a copper die-top system. Both families feature Gen 4 technology with improved cosmic ray susceptibility.

“Amperesand is focused on critical power delivery from medium voltage to AI rack, requiring best-in-class reliability, power density, efficiency, and cost effectiveness,” said Brian Dow, Chief Executive Officer at medium-voltage solid-state transformer manufacturer Amperesand. “The latest advances in SiC technology enable maximum reliability for high variability AI factory loads, while unlocking optimized packaging that drives previously unachievable costs and best-in-industry power density and efficiency. Wolfspeed is driving innovation, scale, and quality that is ideally suited for demanding solid-state transformer critical power solutions.”

Smaller Size – Lower System Cost

The Wolfspeed WolfPACK® module enables solid-state transformer systems to deliver over 50% footprint reduction compared to traditional equipment through improved switching performance and system architecture improvements. Read how Amperesand is engineering for industry-leading space savings and 20-30-year lifetime for their 6+ MW medium voltage SST using the 3.3 kV Wolfspeed WolfPACK® solution here.

The new high-power baseplate module delivers up to 42% improvement in switching losses over other market-available SiC solutions and greater than 90% over IGBTs — both measured at 125°C on a 1.8 kV bus in the same package.

Both families achieve improved switching over temperature, reducing magnetics and EMI filter sizes, ultimately leading to system power density and reduced system costs.

Availability & Resources

Samples for the full-bridge Wolfspeed WolfPACK® IBB020A33GM4, IBB020A33GM4T and for HAB900C33LM4 are available for select customers through Wolfspeed’s direct sales representatives.

Both families will be demonstrated at PCIM, June 9–11, 2026, at booth 7-435, with live demonstrations showcasing system-level performance and scalability. To schedule a meeting with a Wolfspeed expert at the show, visit here.

About Wolfspeed Inc.

Wolfspeed (NYSE: WOLF) leads the market in the worldwide adoption of silicon carbide technologies that power the world’s most disruptive innovations. As the pioneers of silicon carbide, and creators of the most advanced semiconductor technology on earth, we are committed to powering a better world for everyone. Through silicon carbide material, Power Modules, Discrete Power Devices and Power Die Products targeted for various applications, we will bring you The Power to Make It Real™. Learn more at wolfspeed.com.

Wolfspeed ®, Wolfspeed WolfPACK®, and WolfPACK® are registered trademarks and The Power to Make It Real™ is a trademark of Wolfspeed, Inc.

Forward-Looking Statements

This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause Wolfspeed’s actual results to differ materially from those indicated in the forward-looking statements. Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements about Wolfspeed’s strategic plans, priorities, growth opportunities, and ability to achieve profitability. Actual results could differ materially due to factors detailed in Wolfspeed’s filings with the U.S. Securities and Exchange Commission (“SEC”), including its most recent Annual Report on Form 10-K and subsequent SEC filings. These forward-looking statements represent Wolfspeed’s judgment as of the date of this release. Except as required under U.S. federal securities laws, Wolfspeed disclaims any intent or obligation to update any forward-looking statements after the date of this release.

The 3.3 kV silicon carbide (SiC) power module families are purpose-built to address the rapidly approaching power constraints driven by AI data centers and the broader energy transition.

DUBAI, United Arab Emirates (AP) — The U.S. military attacked Iran early Wednesday after it said Tehran struck three ships in the Strait of Hormuz, part of an American effort that also revoked the Islamic Republic’s ability to openly sell crude oil in the world market. Iran retaliated with strikes targeting Bahrain and Kuwait.

The regional crossfire raised the risks that an interim agreement to halt fighting in the war could break down, putting the Middle East again at risk of a wider conflict.

The attacks on shipping and the resulting strikes came during the dayslong funeral for Iran’s Supreme Leader Ayatollah Ali Khamenei, who was killed Feb. 28 in the war’s first moments at age 86. The funeral, which ends Thursday, had been thought to be a period of lower tensions — though mourners have repeatedly called for the killings of U.S. President Donald Trump and Israeli Prime Minister Benjamin Netanyahu.

Negotiations to reach a final deal had been due to start after Khamenei’s burial and focus on the toughest matters, including fully reopening the strait and rolling back Tehran’s disputed nuclear program. But the new attacks threw that into question.

“The era of bullying and extortion is over,” Iran’s Parliament Speaker Mohammad Bagher Qalibaf wrote on X. “It leads nowhere. We don’t fold.”

The U.S. military’s Central Command said American forces launched the strikes “to impose heavy costs for targeting and attacking commercial shipping crewed by innocent civilians in an international waterway.”

It said it hit Iranian targets including air defense systems, radars and over 60 small boats used by Iran’s paramilitary Revolutionary Guard. Those boats have been key in harassing ships in the strait.

The U.S. military remains “postured and prepared to hold Iran accountable when the agreement is not adhered to or obeyed,” it added, saying this round of attacks had ended.

Iran acknowledged the strikes, but offered no word on any losses. Iranian state media reported the sound of explosions in Bandar Abbas, Qeshm and Sirik.

Wednesday morning, both Bahrain, home to the U.S. Navy’s 5th Fleet, and Kuwait, home to U.S. Army forces, sounded missile alerts. The Guard issued a statement acknowledging targeting U.S. military installations in both countries.

“The child-killing and terrorist U.S. army ... openly violated the ceasefire and violated the Islamabad understanding by launching an airstrike on a number of coastal bases and civilian stations on the coasts of Hormozgan and Mahshahr provinces,” it said, without addressing the attacks on ships in the strait.

A similar spate of Iranian attacks on shipping and U.S. retaliatory strikes occurred late last month — which similarly drew Iranian attacks on Bahrain and Kuwait. Wednesday’s strikes also came as Trump was in Turkey for a summit of the NATO military alliance.

The U.S. also revoked a license that authorized the sale of Iranian oil as part of the interim deal. That had allowed Iran for the first time in years to conduct oil sales openly on the international market for U.S. dollars. Iran long had been suspected of selling sanctioned crude oil at below-market prices to China.

The decision came after the strikes on shipping. One tanker was traveling off the coast of Oman when it was hit and caught fire, the United Kingdom Maritime Trade Operations center said. Iranian state television said the liquefied natural gas tanker came under attack after ignoring warnings but did not directly claim the assault.

The other two ships sustained some damage, but no one was injured, and both continued on their way in the Strait of Hormuz, the U.K. maritime agency said. Iran has maintained a chokehold on the Strait of Hormuz since the war, disrupting global energy markets as a fifth of all traded oil and natural gas passed through the channel in peacetime. The ships attacked Tuesday all appeared to be using a route close to Oman’s shore, rather than one ordered by Tehran.

Tehran repeatedly has declared that only its approved route through the strait is safe and is suspected of attacking other ships that have used the Oman route.

Majed al-Ansari, a spokesperson for the Qatari Foreign Ministry, said the Qatari tanker Al Rekayyat was targeted in an “unacceptable attack” on international navigation and global energy security. He said Qatar holds Iran “fully legally responsible.”

Iran and the United States agreed as part of the interim deal to allow ships to pass without paying charges for 60 days. But Tehran insisted it must control the vessels’ routes and later charge fees for passage, which would upend decades of practice in the waterway.

The U.S. and many Gulf Arab states say they will not agree to Iran charging for passage through the strait.

In this photo released by Iran's Supreme Leader's office, mourners carry the coffin of the late Iranian Supreme Leader Ayatollah Ali Khamenei during funeral prayers held as part of the dayslong funeral ceremonies at the Holy Jamkaran Mosque in Qom, Iran, Tuesday, July 7, 2026. (Office of the Iranian Supreme Leader via AP)

An Iraqi Shiite soldier chants on the eve of funeral ceremonies for the late Iranian Supreme Leader Ayatollah Ali Khamenei outside the Imam Ali Shrine in Najaf, Iraq, Tuesday, July 7, 2026. (AP Photo/Hadi Mizban)