650V SiC Schottky diodes boost switching performance and reliability
The family includes surface mount and through hole packages ranging from 6 A to 50 A. All of the diodes provide zero reverse recovery, low forward voltage, temperature independent current stability, high surge capacity and positive temperature coefficient.
The diodes are aimed at engineers designing PFC and boost converters for various applications including solar PV inverters, EV/HEV chargers, telecom power and data centre power supplies while facing challenges to deliver smaller footprints at higher efficiencies.
The 650V devices combine higher efficiency, higher power density, smaller footprints and enhanced reliability. The reduced power loss from the inherent low forward voltage (VF) and no reverse recovery charge of SiC diodes improve efficiency. The faster recovery of SiC diodes allows for higher switching speeds and reduces the size of magnetics and other passive components, enabling greater power density and smaller overall circuit designs. In addition, the SiC diodes can withstand higher surge currents and deliver stability over a temperature range of -55 to +175ºC.
The devices feature a patented termination structure that reinforces reliability and enhances stability and ruggedness. This also provides higher avalanche energy, of 64mJ, the industry’s highest unclamped inductive switching (UIS) capability and lowest leakage currents.
“ON Semiconductor’s new 650 V family of SiC diodes complement the company’s existing 1200 V SiC devices, bringing a broader product range to our customers,” said Simon Keeton, Senior Vice President and General Manager, MOSFET Business Unit at ON Semiconductor. “Using the unique characteristics of wide band gap materials, SiC technology offers tangible benefits over silicon, and their robust construction provides a dependable solution in applications in challenging environments. “
The 650 V SiC diode devices are offered in DPAK, TO-220, and TO-247 packages and priced from $1.30 to $14.39 per unit in 1,000 unit quantities.