Collector layer is bigger in size than the other two layers and thus highly doped.The centred layer is very small in size and is low concentrated as compared to the other two N doped layers.These 3 layers are different from each other in terms of size and concentration of doping.single P doped layer embedded between two N doped layers. The maximum collector current of the transistor is 200mA therefore user can drive loads under 200mA in their electronic applications, Moreover 2N3904 also work good as an amplifier, the total device dissipation is 625 milliwatt due to which it can also be used for audio and RF signal amplification purposes. It can be used in wide variety of electronic applications for switching and amplification purposes. It is mostly used by electronic students and hobbyists in their projects, but it is also used in commercial electronic products. Continuous Collector current (IC) is 200mAĢN3904 is a widely used general purpose transistor.Storage and Fall Time Equivalent Test Circuit.Delay and Rise Time Equivalent Test Circuit.How to Safely Long Run 2N3904 in a Circuit Playing with Transistors: NPN 2N3904 Transistor Experiment CatalogĢN3904 Environmental and Export Classifications

Free download 2n3904 pinout