16n50.pdf datasheet:

UNISONIC TECHNOLOGIES CO., LTD 16N50 Preliminary Power MOSFET 16 A, 500 V N-CHANNEL POWER MOSFET DESCRIPTION 1TO-220F1The UTC 16N50 is an N-channel mode power MOSFET usingUTCs advanced technology to provide customers with planar stripe and DMOS technology. This technology allows a minimum on-state resistance and superior switching performance. It also can withstand high energy pulse in the avalanche and commutation mode. The UTC 16N50 is generally applied in high efficiency switch mode power supplies, active power factor correction and electronic 1lamp ballasts based on half bridge topology. TO-220F2 FEATURES * RDS(ON)