HM3 High-Performance Half-Bridge Modules Wolfspeed HM3 High-Performance Half-Bridge Modules are all-silicone carbide, switching-optimised, low-inductance half-bridge modules in a low profile footprint (110mm x 65mm x 12.2mm). The HM3 components implement switching-optimised third generation SiC MOSFET technology. A lightweight 62mm compatible ALSiC baseplate enables system retrofitting. Other features include a +175°C junction operation temperature and a high-reliability silicon nitride insulator. The HM3 High-Performance Half-Bridge Modules are ideal for railway/traction, solar, EV charger and industrial automation/testing applications.