HybridPACK™ HD –Powering a reliable, TCO optimized converter for e Commerical Vehicles HybridPACK™ HD is a CoolSiC™ MOSFET 1400 V power module with .XT technology, purpose built to meet the toughest demands of heavy duty eCAV applications such as eTrucks, eBuses, and construction machinery. Its .XT, high performance joining technology with sintered chips & Cu bond wires is engineered for exceptional power cycling capabilities—supporting reliability & lifetime of over 1.5 million km.