Structure an npn transistor has a thin region of ptype material between two regions of ntype material. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Rca transistor thyristor and diode manual sc14 and a great selection of related books, art and collectibles available now at. Ic cross reference cross reference ci stk cross reference ci tda cross reference ci sharp cross reference hitachi audio ic cross reference and circuit applications smd cross reference and equivalent we make every effort to ensure that the material on this site is accurate, however we do not warrant or represent that the information is free. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. Weve got a frys close to my work, but i dont find for example tip122 or tip36c when i do a search. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Transistor equivalents for the substitution of modern transistors in elderly projects. If you install the wrong polarity, the sandwich wont work. Ive got six books on transistors, and i still dont know what im doing, complained johnny. Audio, series regulator and general purpose absolute maximum ratings ta25c electrical characteristics ta25c external dimensions mt100to3p symbol 2sd2560 unit symbol.
Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. The base region is much thinner than the either the collector or emitter regions. 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. The original transistor might need special ordering, or be discontinued and unavailable. It is recommended that transistors not be allowed to operate near these values, lest their lifespan be shortened. You can replace the mje02 with the mje03, mje03g or mje03g. Original transistor type original alternative type modern substitute alternative substitute. The links at left may help you to research your own replacement transistors. Transistor substitution desoldering and replacing a transistor takes very little time. N stands for ntype material and p stands for ptype material. This easytouse book covers all transistor types including.
Smallsignal transistors replacement list bc86816 bc868, bc86825 equivalent type bc876 bc878 bc880 bc878 equivalent type bc877 bc879 bcf29 bc857 bcf30 bc857b bcf33 bc847b bcf81 bc847c bcp5110 bcp5310 bcp5210 bcp5310 bcp52 bcp53 bcp5410 bcp5510 bcp6810 bcp68, bcp6825 bcp6816 bcp68, bcp6825. Other books that tell similar stories, for different time frames are. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. More time is spent figuring out which one to replace and, sometimes, what to replace it with. The breakdown voltage is where the transistor will stop operating or be destroyed if it is given an input voltage of that amount. Free shipping on many items browse your favorite brands. International transistor equivalents guide bernard babani. The next most important parameter is possible ft the effective maximum operating frequency although the transistor is of no use at that frequency. Transistors substitutionsequivalents all about circuits. An npn transistor works the same as a pnp transistor but with opposite bias voltages. Check our section of free e books and guides on transistor circuits now. More than 490,000 part numbers, type numbers, and other identifying numbers listed. For highside switch circuits, you need a pnp style bjt.
On special request, these transistors can be manufactured in different pin configurations. Bipolar junction transistors bjt and fieldeffect transistorsfet. The 4 best transistors to keep in your parts kit bald engineer. Knowing how to substitute an alternate transistor type can speed up your. The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. Bipolar, power, rf, digital, igbt, unijunction, fet, jfet, and mosfets. Select a replacement transistor with equivalent ft. The transistor equivalent circuit can now be evolved with the twopole formulae for the transistor fundamental circuit in fig. Electronicstransistors wikibooks, open books for an. World transistor equivalents data az by eca author 4. This book also has a very comprehensive glossary, index, and equations.
You are far better off understanding the specifications, particular those of particular interest to your application, and using a book or table of specs to find a proper substitute, or posting on sites like aac for help choosing. For example, in the first page of the book, if one looks at the alternatives for type 2g302, the replacement. Pinball transistor equivalent chart, or how to read. Join date feb 2008 location romania posts 1,874 helped 1051 1051 points 37,620 level 47. Transistor equivalent circuits and models learning objectives general dc equivalent circuit ac equivalent circuit equivalent circuit of a cb amplifier effect of source resistance r s on voltage gain equivalent circuit of a ce amplifier equivalent circuit of a cc amplifier smallsignal lowfrequency model or representation. You can easily switch big, like great than 12 volt loads with this transistors max 40 volt rating. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. But all this is some ones idea of what a equivalent is. It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. The characteristics and approximate specifications of 2n series discrete transistors are generally the same between different manufacturers when trying to decide which transistor you need, take into consideration the following. The characteristics and approximate specifications of 2n series discrete transistors are generally the same between different manufacturers. Mje02 npn transistor complementary pnp, replacement.
The invention of the transistor and the birth of the. E silicon npn triple diffused planar transistor complement to type 2sb1647 application. Bipolar junction transistor physics and radioelectronics. Alternatively equivalents to these transistors would help. Years ago there were books for transistor equivalents. Bjts have 3 terminals and come in two varieties, as npn and pnp transistors. Transistor equivalents for the substitution of modern. Unit vcbo collectorbase voltage open emitter 2n2222. Apr 21, 2014 a common transistor i use is the 2n3904. Robomart is trusted online store to buy 2sx series transistors, 2sa general purpose transistors, 2sa transistors online at very affordable price in india. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. 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. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Free transistor circuits books download ebooks online textbooks.
It is necessary to ensure that the replacement transistor will be able to operate at the relevant frequencies, so a similar or slightly higher ft is advisable. Semiconductor transistor, diode, ic cross reference. So called equivalent parts, or nte replacements, may not work at all in some cases, because they were worse in some spec, or the circuit was designed with the assumptions that the part had a fairly low bandwidth. A substitute transistor must have the same polarity, either pnp or npn, as the original. Figure 5b shows an amplifier connection of the ota, the equivalent of a commonemitter transistor, transistor. The transistor acts like a valve controlling the flow of current through the transistor from collector to emitter. It had been only a little over a decade since the transistor was invented when this article appeared in the august 1959 edition of popular electronics. Electronicstransistors wikibooks, open books for an open world. Ics for cdcdrom player an8377n 3channel linear driver s overview the an8377n is an ic, g c. Cross reference universal transistor reference page 1. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation.
The circuit symbol and diode analogy of npn transistor is. 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. Or, point me to an article that explains transistor specifications and how to read them. Understanding transistor circuits, august 1959 popular. Diode 1n9148 1n4307 1n4532 diode 1n3605 2n2222 chip 2n2369 transistor se708 ma1704 ma1703 text. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by adrian michaels isbn.
The collector region is usually thicker than the emitter as the largest. Pinning pin description 1 emitter 2 base 3 collector, connected to case fig. Transistor equivalent book pdf free download by corfikome. I just entered transistor without quotes in the search box at the top level, then clicked on transistors bjt single,797 items and it took me to the transistor search page above. Choosing transistor replacements electronics notes. Replacement and equivalent transistor for the mje02. Second book of transistor equivalents american radio history. Transistors peter mathys ecen 1400 transistor families there are two major families of transistors. Below is the cross reference for the 9014 transistor. Npn silicon epitaxial planar transistor for power switching and electron rectifier applications.
This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Guide to 2n series transistors approximate specs and characteristics. Make offer 2sa653 nec pnp transistor 1pc nos free shipping in the usa. Bonjour, quelquun peux me dire avec quoi je peux replacer le transistor bcp56. Design and application of transistor switching circuits. When a single ptype semiconductor layer is sandwiched between two ntype semiconductor layers, an npn transistor is formed.
It is defined as a gain because a small signal at the base produces a much larger signal at the collector. 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. Its current rating is only 200ma, but that is enough for most relays. The handle of the valve is controlled by i b with more base. Hfe has minimum and maximum values, though both may not be listed. The collector is moderately doped and the emitter is heavily doped.
At the maximum voltage, also called a breakdown voltage bv, electrons. Everyday low prices and free delivery on eligible orders. Alternatively equivalent s to these transistors would help. How to choose a replacement for a bipolar transistor total. All the substitution books i have seen have been highly unreliable. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Complementary power darlington transistors stmicroelectronics. These transistors are subdivided into one group according to its dc current gain.
Get the best deals on nec transistors when you shop the largest online selection at. It has been very useful for me because it doesnt provide only the nte replacements. Get the best deals on nec transistors when you shop the largest online selection. 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. Most have a way to say i need a transistor like this. Audio, series regulator and general purpose absolute maximum ratings ta25c electrical characteristics ta25c external dimensions mt100to3p symbol 2sd2560 unit symbol conditions 2sd2560. Transistors were still a mystery to most people, including engineers, technicians, and hobbyists. Electrical engineering news and products electronics engineering resources, articles, forums, tear down videos and technical electronics howtos. Transistor curves how a transistor amplifies the base current i b controls the value of the collector current i c, and emitter current i e. Mar 10, 2009 all the substitution books i have seen have been highly unreliable. Free transistor circuits books download ebooks online. A transistor is a solid state device made by joining three positivetype and negativetype semiconductors together. Should you find any info that can fill in any of the blanks in the matrix below. Pls i need transistor equivalent of ztx300 and 2n3705.