Valley View – October 12, 2026 -- Peak Nano and Advanced Conversion, a wholly owned subsidiary of ETI of Clearwater, Florida, have formed a partnership to co-develop DC-link capacitors for 800V+ e-mobility, with initial product releases slated for late 2026.
Engineering teams from both companies are already developing joint products. The partnership is structured for long-term co-development across passenger EVs, commercial vehicles, off-highway platforms, electrified aviation and DC fast-charging infrastructure.
Partners target the DC-link bottleneck in 800V+ SiC inverters
Silicon Carbide (SiC) MOSFETs demand DC-link capacitors that can handle high currents, thermal loads, switching speeds and voltage stress. According to the companies, legacy designs were not built for these conditions. Engineers currently work around the limits by derating capacitors, oversizing the DC link or adding cooling infrastructure. These measures add cost, weight and size, and they erode the efficiency gains SiC is meant to deliver.
Initial focus areas include Formula E and performance automotive, electric buses and heavy trucks, off-highway and industrial vehicles, and electrified aviation.
NanoPlex LDF film meets Power Ring platform in a combined design
Peak Nano contributes its patented NanoPlex LDF film design. The company says the film delivers the thermal stability and voltage endurance required by 800V+ SiC systems without the derating penalties that constrain biaxially oriented polypropylene (BOPP) designs.
Advanced Conversion contributes its patented Power Ring platform, which provides ultra-low commutation loop inductance and superior thermal coupling. The design is intended to let fast-switching SiC modules run at full performance in compact, high-heat environments. Edward Sawyer, CEO of Advanced Power Conversion Solutions, said the combined solution is geometrically aligned to integrate directly with motor housings.
Sawyer also said NanoPlex LDF serves as a direct replacement for polyester-based films where supply has become constrained, and that Advanced Conversion is already seeing strong adoption across its customer base.
Peak Nano CEO Jim Welsh said the partnership brings the film and the manufacturing platform together for the first time, with products intended to set a new benchmark for DC-link performance in e-mobility on land, sea and air.
Domestic manufacturing targets OEM supply-chain de-risking
NanoPlex LDF is engineered and manufactured domestically, and Advanced Conversion manufactures in the United States. The companies describe the pairing as one of the few fully domestic, allied-supply-chain DC-link solutions for high-voltage e-mobility. They are pitching it to OEMs and Tier 1 suppliers seeking to de-risk supply chains in line with onshoring and nearshoring priorities across EV, power electronics, and defense and national security sectors.
Program managers and engineers can contact either company to discuss early access and evaluation opportunities.