Transistors

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NPN vs PNP ???

NPN

PNP

Common transistors at S&&O

TIP120/TIP121/TIP122

NPN Epitaxial Darlington Transistor

Datasheet: https://cdn-shop.adafruit.com/datasheets/TIP120.pdf

TIP122-1000x1000.jpg

Motor control: TIP + Arduino

Parts:

  • Arduino
  • 1N4001 Diod
  • 2.2KOhm Resistor
  • TIP120 Transistor
  • DC Motor
  • Powersource (battery)
  • Some wires

https://magnusglad.wordpress.com/2013/03/06/tip120-to-control-a-dc-motor-using-arduino/

tip120_dc.png

CT2N

Datasheet: https://www.sparkfun.com/datasheets/Components/2N3904.pdf

2N3904-Pinout.png