The FQP34N20 is a Power MOSFET, N-Channel, QFET?, 200 V, 31 A, 75 m|?, TO-220. On Semiconductor Semiconductor's exclusive planar stripe and DMOS technologies are used to create this N-Channel enhancement mode power MOSFET. This cutting-edge MOSFET technology has been specifically designed to lower on-state resistance while delivering excellent switching performance and great avalanche energy strength. Electronic light ballasts, active power factor correction (PFC), and switched mode power supply are all compatible with these products.