Boring analysis that removes the transistor from the circuit leaving an open circuit. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose. Categorypolarityic valuebvceo value 704 x y zzz x odd number 7 pnp x even number 8 npn y current value where hfe gain is specified. Npn silicon transistors with similar properties are also made in a variety of small. Transistor working, construction, application, types d. Does anyone know where the site is that you type in a transistor and get a list of equivalent transistor. The npn transistor amplifies the weak signal enter into the base and produces strong amplify signals at the collector end. Material struct pc w vcb v vce v veb v ic a tj c ft mhz cc pf hfe. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Understanding transistor replacement, substitution and. Npn transistor circuit working, characteristics, applications. Buy principles of transistor circuits, ninth edition.
Calculate the base current of a bipolar npn transistor having the bias voltage 10v and the input base resistance of 200k. Electronicstransistors wikibooks, open books for an. Diode 1n9148 1n4307 1n4532 diode 1n3605 2n2222 chip 2n2369 transistor se708 ma1704 ma1703 text. Bipolar power transistor selection guide january 2003 table of contents product page general purpose transistors horizontal deflection output transistors product page dpak d2pak sot223 ipak to126 todarlington transistors dpak ipak to126 to220 to220f to3p to3pf switching transistors dpak d2pak to92 to126 to220 to220f to3p to3pf 2. Notes on npn transistors david kleinfeld spring 2018 1. Bipolar, power, rf, digital, igbt, unijunction, fet, jfet, and mosfets. Nte is a company that specializes in cross referenced parts. How to choose a replacement for a bipolar transistor crossreference search result equivalent transistors type. International transistor equivalents guide bernard babani. Introduction the bipolar junction transistor consists of three regions. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor.
Transistors now that we know about diodes, lets put two of them together, as follows. A great book for learning electronics in easy plain language. When a single ptype semiconductor layer is sandwiched between two ntype semiconductor layers, an npn transistor is formed. Equivalent to an off state when transistor is used as a switch. The circuit symbol and diode analogy of npn transistor is. The movement of an electron to the left is equivalent to a hole moving to the right. Working principle of transistors when no voltage is applied across the transistor, diffusion of free electrons across the junctions produces two depletion layers. Bipolar junction transistors bjt concordia college. In the next few sections, let us look at the actions taking place in an npn transistor and a pnp transistor. Transistor replacement table for transistor datasheet archive. The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. Transistor equivalents for the substitution of modern transistors in elderly projects.
Buy international transistor equivalents guide bernard babani publishing radio and electronics books by adrian michaels isbn. Understanding transistor replacement, substitution and information is very important for a electronic repairer. Allieds handbook of transistor fundamentals author. Finding transistor replacement can take you hours if you dont know the right method to do it. 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. Hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors.
Analysis that replaces the transistor with a pair of batteries representing the two junction turn on voltages cvd model. Please note that i have chosen to discuss the bipolar junction transistor instead of the field effect transistor. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. At first glance, this looks like an insulator but the actual behavior is far more interesting, if we apply external voltages properly n n p collector emitter base moderately doped. I have a circuit that uses bc106 and 2n3634, which cant find in store where i live. Many times the equivalents shown in the various books are harder to find than the original component. A to5 transistor with a p d of 3 watts might be able to dissipate 810 watts with a heat sink. For each depletion layer, the barrier potential is about 0. The three layers are called the emitter, base and collector. Cross reference universal transistor reference read 980 times. Bjts are currentcontrolled devices which means that a small amount of current flowing through the base of a bipolar junction transistor, results in a large current that flows from emitter to collector. Ecg transistor replacement guide book free 2sb337 transistor replacement guide 980510 2n339 c24850772 bc149c 2sb508 s9510.
This section contains free e books and guides on transistor circuits, some of the resources in this section can be viewed online and some of them can be downloaded. This section contains free ebooks and guides on transistor circuits, some of the resources in this section can be viewed online and some of them can be downloaded. Diodes and transistors pdf 28p this note covers the following topics. Vrt comparison table for semiconductors from a to z. Theyre critical as a control source in just about every modern circuit. In this tutorial well introduce you to the basics of the most common transistor around. Semiconductor cross reference book engineers of howard w. Diodes and transistors university of california, berkeley. Bipolar junction transistor physics and radioelectronics. 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. Bipolar transistor crossreference search equivalent.
Cross reference universal transistor reference page 1. The transistor in which one ptype material is placed between two ntype materials is known as npn transistor. Calculate the base current ib to switch a resistive load of 4ma of a bipolar npn transistor which having the current gain. A transistor is a solid state device made by joining three positivetype and negativetype semiconductors together. Heat sinks and fans increase the ability of a transistor to dissipate heat.
Free transistor equivalent book transistor bipolar junction. Obsolete transistor equivalents all about circuits. Introduction to the design of amplifiers, receivers and digital circuits 9 by amos, stan w. Bc238 datasheet, equivalent, cross reference search. Robomart is trusted online store to buy 2sx series transistors, 2sa general purpose transistors, 2sa transistors online at very affordable price in india. In npn transistor, the direction of movement of an electron is from the emitter to collector region due to which the current constitutes. Transistor uses, transistor rules, common emitter circuit, small signal amplification, fieldeffect transistors, jfet operating regions. Should you find any info that can fill in any of the blanks in the matrix below. Everyday low prices and free delivery on eligible orders.
Free transistor circuits books download ebooks online. Semiconductortransistor crossreference list peavey. Smallsignal transistors replacement list bc337a bc337 equivalent type bc338 bc337 bc33816 bc33716 bc33825 bc33725 bc33840 bc33740 bc36816 bc63516 bc36825 bc63516 equivalent type bc547a bc546a bc548 bc547 bc548a bc546a bc548b bc547b bc548c bc547c bc549 bc547b bc549b bc547b bc550 bc547b bc550b bc547b bc557a bc556a bc558 bc557 bc558a. This book also has a very comprehensive glossary, index, and equations. Transistor npn transistor, pnp transistor definition. Is there anything available to see if a particular transistor can be replaced with a different one. There are books galore on this but surely someone knows of a site that has them listed and searchable my query is a simple one i have no 2n5551 transistors on hand and i want to see if one in my box will do the job. Transistor equivalents for the substitution of modern. The links at left may help you to research your own replacement transistors. Or, point me to an article that explains transistor specifications and how to read them. This easytouse book covers all transistor types including. Notes on npn transistors university of california, san diego.
An9010 all mosfet equivalent book free all transistor equivalent book free transistor equivalent book power bjt advantages and disadvantages an9010 vmosfet bjt isolated base drive circuit drive base bjt fqp10n20 n power mosfet depletion. View forum posts private message view blog entries view articles full member level 5 join date jun 2005 posts 240 helped 45 45 points 4,206 level 15. Pinball transistor equivalent chart, or how to read. Part numbering system for peavey to3 power transistors. Dodgy ebay replacements are available but im aware that this is not necessarily the best route to go down. Vce limits of the transistor that must be observed for reliable operation. Is there any website which could help me find an equivalent transistor. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. Does anyone know of a chart anywhere that list some of the common transistors you see in pinball circuit boards and their equivalent from different manufacturers. Maximum power, called p d, is the overall power a transistor can dissipate, through heat, without burning up. Smallsignal transistor data book, 86 pages, 1984, motorola.
214 493 1527 13 811 1228 357 1025 757 1353 511 579 466 1155 301 1488 100 474 1414 395 1534 412 62 18 751 995 639 212 137 573 593