Package: Packaged in a durable TO-247 case, shipped in an Anti-Static bag for electrostatic protection and long shelf life. 5PCS BD249C AF NPN High Power Amplifier Transistor 25A 125W TO-3P Amplifier Transistor BU508AF. BU508AFI. BU1008AF. 1500V(700V) 8A 50W. NPN. Power Bipolar Junction Transistor Tip35c Transistors The TO-247 case is durable and provides good heat dissipation, which is crucial when you're working with higher power levels. You get five pieces in the pack, which is perfect for prototyping or having spares on hand for future projects Application: Ideal for high power electronic circuits such as power amplifiers, voltage regulators, and switches due to its high power handling capabilities. Hey electronics enthusiasts, these Chanzon TIP35C transistors are absolute workhorses for your high-power projects! As NPN bipolar junction transistors in the sturdy TO-247 package, they can handle some serious business with 125W power dissipation and up to 25A collector current Transistor Polarity: NPN, for efficient current flow from collector to emitter.