![]() If it shows reading, then it’s a PNP transistor you can also place the red probe on the middle pin of the transistor and then put the black probe on any of the pins on the side. First, grab the multimeter’s probes (the black and red cables), place the black probe on the middle pin of the transistor, and then put the red probe on any of the pins on the sides. To differentiate between PNP and NPN transistors or the bipolar junction transistors, you must use a multimeter. How To Differentiate Between PNP and NPN Transistors? The base is the easiest pin to identify because it’s the N-type pin, the one in the middle.Observe the reading of the second pin and write it down “ P-N.Move the black probe to the pin on the other side while keeping the red probe on the middle one.Write down the reading that appeared, and refer to it as the reading of the first pin, “ N-P.Put the red probe on the middle pin and then the black probe on the first pin, and wait to observe the reading that appears on the multimeter.Identifying Transistor 3 Pins With Multimeter (NPN) The pin with the highest voltage is the emitter, while the pin remaining or that has the lowest voltage is the collector.The base is the easiest pin to identify because it’s the P-type pin, the one in the middle.Observe the reading of the second pin and write it down “ N-P.Move the red probe to the pin on the other side while keeping the black probe in the middle.Write down the reading that appeared, and refer to it as the reading of the first pin, “ P-N.Put the black probe on the middle pin and then the red probe on the first pin, and wait to observe the reading that appears on the multimeter.Use the red and black probes of your multimeter to test the first lead pin of your transistor.Set the multimeter to diode mode by moving the selecting wheel until it reaches the diode symbol.Grab your multimeter and check that the red cable is connected to the voltage socket while the black cable is connected to the com.Identifying Transistor 3 Pins With Multimeter (PNP) The multimeter method is general and works for every type of transistor without looking for certain characteristics in the transistor. You can find the transistor’s collector, emitter, and base either using a multimeter or without using it. #Transistor base emitter collector identification how toSo, how to find the collector, emitter, and base of a transistor? How Do I Find Collector, Emitter, and Base of a Transistor? The transistor usually has three pins or terminals: the emitter, base, and collector. Transistors are semiconductors used to switch or amplify power and signals in modern electric or electronic circuits and devices. ![]()
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