The series of power transistors NPN TIP31 distinguishes by the suffix characteristics of the different types available. The suffixes indicate the maximum collector voltage supported by these transistors. The TIP31 transistors are used in audio and DC applications, such as an amplifier, supplies, solenoid drivers and motors, etc. These transistors have the resources to mount heatsinks. In the table below the pinout and characteristics of different types of series is shown.
