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  2. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    BJTs PNP and NPN schematic symbols 3D model of a TO-92 package, commonly used for small bipolar transistors A bipolar junction transistor ( BJT ) is a type of transistor that uses both electrons and electron holes as charge carriers .

  3. Electronic symbol - Wikipedia

    en.wikipedia.org/wiki/Electronic_symbol

    An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...

  4. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    For the BJT, on an n-p-n transistor symbol, the arrow will "Not Point iN". On a p-n-p transistor symbol, the arrow "Points iN Proudly". However, this does not apply to MOSFET-based transistor symbols as the arrow is typically reversed (i.e. the arrow for the n-p-n points inside).

  5. Insulated-gate bipolar transistor - Wikipedia

    en.wikipedia.org/wiki/Insulated-gate_bipolar...

    An IGBT cell is constructed similarly to an n-channel vertical-construction power MOSFET, except the n+ drain is replaced with a p+ collector layer, thus forming a vertical PNP bipolar junction transistor. This additional p+ region creates a cascade connection of a PNP bipolar junction transistor with the surface n-channel MOSFET. The whole ...

  6. File:BJT PNP symbol.svg - Wikipedia

    en.wikipedia.org/wiki/File:BJT_PNP_symbol.svg

    This W3C-unspecified circuit diagram was created with the Electrical Symbols Library. Captions. English. ... Description= PNP transistor symbol without case ...

  7. File:BJT PNP symbol (case).svg - Wikipedia

    en.wikipedia.org/wiki/File:BJT_PNP_symbol_(case).svg

    Description: PNP transistor symbol with case (IEEE 315). Note: A little confusing on the BJT page, because the NPN is drawn with Collector (C) on the top, while here it is drawn on the bottom.

  8. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.

  9. Common collector - Wikipedia

    en.wikipedia.org/wiki/Common_collector

    Figure 3: PNP version of the emitter-follower circuit, all polarities are reversed. A small voltage change on the input terminal will be replicated at the output (depending slightly on the transistor's gain and the value of the load resistance; see gain formula below). This circuit is useful because it has a large input impedance

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