# NPN Transistor Pin Numbers

**URL:** <https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533>\
**Category:** parts help\
**Created:** [July 8, 2022, 11:49am UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533 "2022-07-08T11:49:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![theDeffiant](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/t/ecccb3/32.png) [@theDeffiant](https://forum.fritzing.org/u/theDeffiant)\
**Post date:** [July 8, 2022, 11:49am UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533/1 "2022-07-08T11:49:33Z")

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Hi, I have seen a couple of posts on this issue, but is it possible to change the pin numbers on Transistor so it reads correctly? The Transistor I have should read 1C 2B 3E (BC547).  
 ![image](https://forum.fritzing.org/uploads/default/original/2X/b/b3d4c9629e92fe36282218c95927b559018934cb.png)

In addition, I am also looking for a good tutorial on how to make my own parts, any recommendations?

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**Author:** ![microMerlin](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/m/76d3ee/32.png) [@microMerlin](https://forum.fritzing.org/u/microMerlin)\
**Post date:** [July 8, 2022, 7:49pm UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533/2 "2022-07-08T19:49:26Z")

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Different NPN transistors have different pin outs. All of them are currently using the same schematic though. What _should_ work, is setting your transistor to the NPN (CBE) type using Inspector. That set the pin order in breadboard view correctly, and hovering over the pins in schematic view show the correct CBE information. It is just the labels, which are part of the shcematic image that are wrong.

I did some work awhile ago to create a complete set of NPN, PNP, FET, JFET and more transistors that had better, more consistent schematic and pcb footprings (packages), but it was never completed. As I recall, that was coming out with something like 192 parts once the various combinations were taken into account.

These two sets of tutorials apply to the current versions of Fritzing (most of the others are for older versions of the software.) Using Eagle2Fritzing is more difficult yet (for starters you need a Fritzing development environment to build Eagle2Fritzing!) If you need a small number of parts, it is easier to convince one of us that know parts making to make them for you. That said we are always willing to help people to make parts as everyone benefits from more people willing and able to make parts.

> [@Fritzing PART CREATION Video Tutorial Series](https://forum.fritzing.org/t/fritzing-part-creation-video-tutorial-series/2647):
>
> NEW FASTER PART MAKING VIDEOS AT THE BOTTOM-[Fritzing Parts Fast](https://forum.fritzing.org/t/fritzing-part-creation-video-tutorial-series/2647/19) ADVANCED FRITZING USER TIPS & TRICKS VIDEOS AT THE BOTTOM-[Fritzing Adv Tips & Tricks](https://forum.fritzing.org/t/fritzing-part-creation-video-tutorial-series/2647/15) A series of part creation videos - I’m not an expert, but there was nothing else around at the time. Use 1080p HD fullscreen to see details clearly - use gear symbol bottom right -. Recorded slowly for older people, so select a higher speed if it’s too slow. P.S. - Sorry about the voice/sound yum Fritzing Part Creation - Chapter1 - New Part …

> [@Part creation howto part 1 breadboard and pcb](https://forum.fritzing.org/t/part-creation-howto-part-1-breadboard-and-pcb/7692):
>
> Someone in this forum post requested help to fix up a part. So while doing that I decided to record what I needed to do in order to fix the part to provide a tutorial to create new / fix broken parts. If you start from the Tarjeta S4A EDU.fzpz file posted in the above thread, you should be able to recreate my improved part posted in the same thread. I started by loading the original part in to Fritzing, that indicates breadboard is (at first look anyway) pretty good, but schematic and pcb are…

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**Author:** ![theDeffiant](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/t/ecccb3/32.png) [@theDeffiant](https://forum.fritzing.org/u/theDeffiant)\
**Post date:** [July 8, 2022, 11:56pm UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533/3 "2022-07-08T23:56:03Z")

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Thank you very much for that, I know getting someone else to do stuff can be quicker but I enjoy learning and I’m always keen to learn more!

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**Author:** ![vanepp](https://forum.fritzing.org/user_avatar/forum.fritzing.org/vanepp/32/4426_2.png) [@vanepp](https://forum.fritzing.org/u/vanepp)\
**Post date:** [July 9, 2022, 12:59am UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533/4 "2022-07-09T00:59:38Z")

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When you run in to problems feel free to ask. We are always happy to help people learn to make parts. If you see unclear parts in the tutorials feel free to raise them too, there haven’t been any comments but I don’t know if that is because people give up on making parts after reading them or not.

Peter

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**Author:** ![theDeffiant](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/t/ecccb3/32.png) [@theDeffiant](https://forum.fritzing.org/u/theDeffiant)\
**Post date:** [July 23, 2022, 9:06am UTC](https://forum.fritzing.org/t/npn-transistor-pin-numbers/16533/5 "2022-07-23T09:06:55Z")

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That is Peter, it’s something I will be exploring as I do have some requirements for components not in the libraries.
