Note: Complete Technical Details can be found at the 2N3904 datasheet given at the end of this page.īC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055, 2N3906, 2SC5200ĢN3904 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. Continuous Collector current (IC) is 200mA.For a little more advanced project, Hi-fi audio guru Nelson Pass wrote a great article on building discrete OpAmps, using bipolar transistors, MOSFETs and vacuum tubes.Of particular relevance to discrete semiconductors are the circuits in Electronic Formulas, Symbols & Circuits. Forrest Mims' books are full of simple circuits you can build on a breadboard with a handful of components.There are many Accoding to Pete videos discussing applications of discrete semiconductors.If you're building circuits with discrete semiconductors, you'll likely need some other components to get the most out of them. Those funny 1Nxxxx and 2Nxxxx part numbers are examples of the JEDEC numbering system.Here are a couple of handy online calculators.The MOSFETs are the slightly smaller SC-72 (AKA "Single SPA") package. The BJTs, voltage references and regulators are all the common TO-92 form factor, with a body about the size of a pencil eraser, and three protruding legs. Some parts may also have additional symbols or printing, indicating things like the manufacturer and date of production. With the exception of the MOSFETs, the marking usually contains a version of the part number. The "marking" column above indicates the designation that you'll find printed in the part itself. You will find the following parts in the kit.ĭiscrete Semiconductor Kit Bill Of MaterialsĪ lot of these parts look very similar. Spilled Onto The Workbench List of contents
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