Reading Bipolar Junction Transistor BJT Schematics
There are many bipolar junction transistors part numbers to choose from. First off, the BJTs come in 2 types, either NPN or PNP. A schematic diagram with one or more Bipolar Junction Transistors (BJTs) will show the NPN or PNP schematic symbol, and what each transistor connects to. Hopefully the diagram will also include the part number for each BJT, and that you already have that part in your inventory. That exact part number does not have to be used. But, you should try to substitute it with one with similar properties. Ultimately, be aware that some circuits are more picky about the exact transistor used than others.
Become a Patron! And of course, donations help a ton!
Some primary bipolar junction transistor topics:
Bipolar Junction Transistor schematics are often accompanied by written text about the circuit.
- Input – Signal
- Output – Power
- Collector (C) – Base (B) – Emitter (E) terminals
- Base to Emitter Diode
- Single Subscripts – VC, VB, VE, IC, IB, IE
- Double Subscripts VBE, ICE, etc.
Some Bipolar Junction Transistor circuits
- Switch – High side or low side
- Emitter Follower
- Current Source
- Schmitt trigger
- Current mirror
- Pulse Generator
This page has just been created. I will be updating it a lot soon!
Ways to support this website and disclaimer:
- https://www.youtube.com/electronzap above all, please subscribe to my YouTube channel!
- After that, any donations will help me update this site faster and to make more diagrams! https://www.patreon.com/electronzap
- In addition, as an Amazon Associate I earn from qualifying purchases https://www.amazon.com/shop/electronzapdotcom
- And as always. This website, and all else I do, is for informational purposes only. Any actions you take are at your own risk.