HEXFRED® Ultrafast Recovery Rectifiers, Vishay Semiconductor The HEXFRED® range of products from Vishay are ultrafast recovery rectifiers that contain ultrafast planar technology with a proprietary Schottky barrier based inner structure that enables soft and fast recovery behaviour at any di_F/dt condition. These characteristics mean that HEXFRED® products are well suited for use as a companion diode for IGBTs and MOSFETs. Features Ultrafast recovery time
Ultrasoft recovery
Very low I_RRM
Very low Q_rr
Reduced radio frequency interference (RFI) and electromagnetic interference (EMI)
Reduced power loss in diode and switching transistor
Reduced snubbing