The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose. Five electronics gadgets thoughts electrical engineering books, electrical projects. The first major selection criterion is whether the transistor is pnp or npn. The output characteristics curves for a pnp transistor look very similar to those for an equivalent npn transistor except that they are rotated by 180o to take. Select a replacement transistor of the same material. Basic semiconductor physics, diodes, the nonlinear diode model, load line analysis, large signal diode models, offset diode model, transistors, large signal bjt model, load line analysis, small signal model and transistor amplification. Tip122 transistor pinout electrical engineering books, electrical projects, hobby. As bias voltages and other features are different it is necessary to select a replacement transistor with the same material. Smallsignal transistor data book, 86 pages, 1984, motorola. Common types include bjt transistors, rf transistors, darlington transistors, and mosfet transistors.
The 2n2907 is an equally popular pnp transistor complementary to the 2n2222. How to choose a replacement for a bipolar transistor crossreference search result equivalent transistors type. Pnp transistor tutorial the bipolar pnp transistor. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Bd6 transistor pinout componentes eletronicos, circuito. Second book of transistor equivalents bernards and babani press radio books. Diodes and transistors pdf 28p this note covers the following topics. Transistors are solidstate electronic devices used to control the flow of electricity in electronic equipment and consist of a semiconductor material with at least three electrodes for connection to a circuit.
Bipolar transistor crossreference search equivalent. International transistor equivalents guide bernard babani. A zener diode is inevitably formed by each of the transistor s np or pn junctions, and the transistor is thus in static terms equal to a pair of reverse. Figure 5 shows the static equivalent circuits of npn and pnp transistors. Bc557 is a pnp transistor hence the collector and emitter will be closed when the. Therefore, it is important to refer to the datasheet for the exact part number and. Bc557 transistor pinout see the complete site com imagens. Transistor equivalent list 8ch pnp darlington transistor array pnp octal darlington transistor arrays equivalent transistor 2sk td62783 equivalent 2sk1078 td62783 pnp darlington transistor array td62504 equivalent text. Material struct pc w vcb v vce v veb v ic a tj c ft mhz cc pf hfe. Choosing transistor replacements electronics notes. Bc328bc558 npn pnp transistors assortment kit 10 values x.