# BC549 NPN general purpose transistor ![ZT2156-dataSheetMain](docs/ZT2156-dataSheetMain.pdf) # References 1. [Jaycar](https://www.jaycar.com.au/bc549-npn-transistor/p/ZT2156) 2. [ZT2156-dataSheetMain](docs/ZT2156-dataSheetMain.pdf)