What does each pin on the transistor do?
More often than not, with NPN Transistors, the first pin is the Collector, the second pin is the Base, and the third pin is the Emitter. Thus the configuration is CBE. However, with PNP transistors, the opposite is the case. The first pin is the Emitter, the second pin is the Base, and the last pin is the Collector.
How do you tell which pin is which on a transistor?
Pin Identification of Transistors In plastic casing, one side of the transistor is Flat which is the front side and the pins are arranged serially. To identify the pins, keep the front flat side facing you and count the pins as one, two etc. In most NPN transistors it will be 1 (Collector), 2 (Base) and 3 ( Emitter ).
What are the 3 pins on a transistor?
In general, all transistors have three pins: base, collector, and emitter. Transistor is a bi-polar device that is a transistor with two junctions namely BE and CE DE EE FE.
How do I know if my transistor is blown?
Connect the red probe in turn to each of the three leads. If the other two leads don’t give the same reading when touched by the black probe, the transistor is PNP and it is bad. Multimeter tests determine if a transistor is blown (open or shorted) and provide a rough estimate of the transistor’s ability to amplify.
Why does a transistor have 3 legs?
The transistor has three legs, these are the base, collector and the emitter. The emitter is always connected to 0v and the electronics that is to be switch on is connected between the collector and the positive power supply. The base of the transistor is used to switch current through the collector and emitter.
How many pins does a transistor have?
The MOSFET transistor is another very common type of transistor. It also has three pins: In the BJT transistor, the current from base to emitter decides how much current can flow from collector to emitter. In the MOSFET transistor, the voltage between gate and source decides how much current can flow from drain to source.
How to identify transistors?
Transistors may be NPN or PNP which are available in the Plastic casing or Metal Can package. In plastic casing, one side of the transistor is Flat which is the front side and the pins are arranged serially. To identify the pins, keep the front flat side facing you and count the pins as one, two etc.
What is the pin configuration of a bipolar junction transistor?
The pin configuration is the same as that of a Bipolar Junction Transistor. Usually, the device is held such that the flat side is facing toward the person. The pins are numbered from 1 to 3 starting from left to right.
What is the difference between NPN and PNP type transistors?
In NPN type, the pin close to the Tab is Emitter, the opposite one, the Collector and the middle one, base. In PNP type the pins are reversed. Pin close to the Tab is Collector. But this is not a standard pin configuration. The pin arrangement may vary in some transistors. So to get an idea, the following table will help you 2.