![]() ![]() A component tester is a device we use to identify, verify, and test various electronics components. We perform this method using the diode test option on the multimeter and try to identify the correct pins of transistors. ![]() The second method requires a digital multimeter. This way, we are able to correctly find the exact pin configuration of the transistor. Method one is all about using the datasheet of that transistor and matching it to the physical structure given in the datasheet. ![]() So, to properly configure the pin configuration of any transistor. We don’t want to damage our transistor in any case. This is the first skill you need to master.īecause if you don’t care about leg or pin configuration – you may end up in a bad circuit or worst you can damage an expensive transistor. Working with transistors requires some technical knowledge, like how to identify the legs of transistors. ConclusionĪ transistor is an active electronic component that we use for switching and application purposes. I will definitely say follow all the three for fun and learning. Now choose which you find easy and interesting. In the end, you can clearly see all three methods. It also tells you if the transistor you are testing is a good one or a bad one.It gives the forward voltage values and DC beta – which is so useful in circuit design and analysis.It tells you the type of transistor, i.e.Furthermore, this m328 can be used for many other electronic components as well for terminal identification. The important thing about this method is, that you can try it with any type of transistor. On the screen, you will see which terminal is the base, collector, and emitter.See the exact results (correct pin configuration) on the screen – it can’t be any simpler than this.Don’t worry about anything, just put your transistor in any direction or polarity you like.Let’s see how we can identify transistor legs through this device. And the reasons are, that it is less expensive, reliable, and easy to use. But the tester we will be using is called the M328 component tester (Product link). Now there are many options for component testers on the market. And the reason is, that this method is done through a special device called the component tester. This last method is very interesting, and I can say that a lot of you may not have heard of this before. Because in some cases, these values are very close to each other. ![]() The highest value in the above two is the emitter, while the lowest value is the collector terminal.Connect the black probe to the left pin, and note down the value on the multimeter screen.Connect the black probe to the right pin, and note down the value on the multimeter screen.Put the red terminal to the base pin, i.e.The middle pin of any transistor is the base (B) terminal.The red probe is positive (connect it to the V port) and the black probe is negative (connect it to the COM port).Turn on your multimeter and set it to the diode test mode.It also requires some technical understanding of transistors.įollow the following steps for this method This method requires a multimeter to perform. There are a lot of very useful websites there to help you.īut in the end, this method is time-consuming and worth doing if you carry the same billion dollars as I used to – in cash. Sometimes, Google has disappointed me :D. But trust me, you will definitely find it. The other challenge you might face is, that sometimes it will be hard to find the datasheet. For example, in the datasheet diagram if the transistor is facing toward you, then you must position your transistor in the same way, i.e. The key to success in this method is, please put your transistor exactly as shown in the datasheet. Mark the legs as the base, collector, and emitter.Compare the legs (just put your transistor on your laptop screen in the exact way as shown in the datasheet).Place your transistor exactly as shown in the datasheet.In the datasheet go the physical structure portion.Download the datasheet of the transistor.Google its number (you can find the transistor number on its body).That was the story when I used to carry a billion dollars in my pocket – in cash.įollowing are the step to implement this method: I call this method a student broke method because I didn’t have enough money to buy a decent multimeter for my personal use. You know, I used this method in my student life a lot. So let’s try to talk in detail about how we can identify transistor legs using the following easy methods. We don’t want to damage our transistors – they are expensive in some cases. ![]()
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