Peak Nano and Superior Conversion have introduced a partnership to co-develop DC-link capacitor options engineered particularly for 800 V+ SiC inverter methods in electrical automobiles and e-mobility platforms. Superior Conversion is an entirely owned subsidiary of ETI, primarily based in Clearwater, Florida.
The collaboration pairs Peak Nano’s NanoPlex LDF (Low Dissipation Issue) capacitor movie with Superior Conversion’s Energy Ring capacitor platform. NanoPlex LDF maintains a dissipation issue under 0.0004 as much as 150 °C—headroom that typical biaxially oriented polypropylene (BOPP) movie can’t match, as BOPP-based designs require vital derating on the temperatures typical in high-power SiC inverters. The Energy Ring platform tackles the opposite key constraint: commutation loop inductance. Its ultra-low inductance structure reduces voltage overshoot at SiC switching occasions, letting inverter designers keep away from the derating and oversizing that higher-inductance capacitor packages sometimes power.
DC-link capacitors sit between the battery bus and the inverter in an EV powertrain, smoothing voltage ripple and absorbing switching transients. SiC MOSFETs change far sooner than the silicon IGBTs they substitute, which drives each larger dV/dt and extra warmth into the capacitor—effectively past what BOPP-based designs had been constructed to deal with.
“Engineers designing 800 V+ inverter methods shouldn’t should derate, oversize, or add cooling simply so their capacitors can sustain,” mentioned Edward Sawyer, CEO of Superior Conversion. Peak Nano CEO Jim Welsh mentioned the partnership “places the fitting movie and the fitting manufacturing platform collectively for the primary time,” focusing on “a brand new benchmark for DC-link efficiency in e-mobility on land, sea and air.”
Goal functions embrace System E and high-performance automotive, electrical buses and heavy vehicles, off-highway automobiles and electrified aviation. Superior Conversion’s US-based manufacturing positions the mixed resolution as a home provide chain possibility. Preliminary product releases are deliberate for late 2026.
Supply: Peak Nano
