KWRFF40R12SWM is an IGBT module with ROHS certification manufactured by JUNSHINE. It is a field stop IGBT designed for high current, high voltage and high speed switching applications. It has a maximum blocking voltage of 1200V, a maximum collector current of 40A, a maximum junction temperature of 150°C and a switching speed of up to 750ns. It is RoHS compliant and is capable of withstanding high surge current withstanding, overvoltage protection, temperature control, thermal shutdown, undervoltage lockout, output short-circuit protection and overcurrent protection. This IGBT module is ideal for inverter applications, motor speed control applications, welding applications, etc.