AFGHL40T65SQ & AFGHL50T65SQ IGBTs onsemi AFGHL40T65SQ and AFGHL50T65SQ IGBTs are 4th generation, high-speed field-stop IGBTs ideal for automotive applications. The AFGHL40T65SQ and AFGHL50T65SQ IGBTs offer higher reliability and optimum performance for both hard and soft switching. The onsemi AFGHL40T65SQ and AFGHL50T65SQ IGBTs are AEC Q101 qualified and provide very low switching and conduction losses.