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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. 2N3906 - Wikipedia

    en.wikipedia.org/wiki/2N3906

    The 2N3906 is a commonly used PNP bipolar junction transistor intended for general purpose low-power amplifying or switching applications. [1] [2] It is designed for low electric current and power and medium voltage, and can operate at moderately high speeds. It is complementary to the 2N3904 NPN transistor. [3]

  6. 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

  7. Insulated-gate bipolar transistor - Wikipedia

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

    IGBT schematic symbol An insulated-gate bipolar transistor ( IGBT ) is a three-terminal power semiconductor device primarily forming an electronic switch. It was developed to combine high efficiency with fast switching.

  8. 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 ...

  9. p–n junction - Wikipedia

    en.wikipedia.org/wiki/P–n_junction

    p–n junctions represent the simplest case of a semiconductor electronic device; a p-n junction by itself, when connected on both sides to a circuit, is a diode. More complex circuit components can be created by further combinations of p-type and n-type semiconductors; for example, the bipolar junction transistor (BJT) is a semiconductor in ...

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