DF4-19MR20W3M1HF_B11 EasyPACK™ Module Infineon Technologies DF4-19MR20W3M1HF_B11 EasyPACK™ Module is configured with the operation of the CoolSiC™ trench MOSFETs and PressFIT/NTC. The DF4-19MR20W3M1HF_B11 offers high current density and a low inductive design. The modules implement PressFIT contact technology and integrate an NTC temperature sensor.