This listing is for one IRC644 transistor, part number TO-220-5. This single N-Channel MOSFET has a drain to source voltage of 250V and a continuous drain current of 14A. It has a maximum power dissipation of 125W, making it suitable for a range of electrical equipment and industrial applications. The transistor is packaged in a TSOT-23-6 case and is through-hole mounted. Please note that this listing does not discuss the condition of the transistor. If you have any questions or concerns, please feel free to contact me.