The links at left may help you to research your own replacement transistors. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Af239 datasheet, equivalent, cross reference search. Transistors substitutionsequivalents all about circuits. If you install the wrong polarity, the sandwich wont work. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. Robomart is trusted online store to buy 2sx series transistors, 2sa general purpose transistors, 2sa transistors online at very affordable price in india. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn.
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. K3561 datasheet n ch transistor, vdss 500v toshiba. Semiconductortransistor crossreference list peavey. The 2n32 is an rca pointcontact transistor in a singleended package that has all leads emerging from the same end. Tube af 239 or rohre af239 id34014, transistor, wires and uhf shown. Transistor base numbers 3nxxx to 9xxxx cricklewood. Free transistor circuits books download ebooks online. Npn silicon transistors with similar properties are also made in a variety of small. Uk vintage radio repair and restoration transistor. Finding transistor replacement can take you hours if you dont know the right method to do it. A transistor is a solid state device made by joining three positivetype and negativetype semiconductors together. Design and application of transistor switching circuits. Transistor circuits books 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.
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. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. More than 490,000 part numbers, type numbers, and other identifying numbers listed. The next most important parameter is possible ft the effective maximum operating frequency although the transistor is of no use at that frequency. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. But all this is some ones idea of what a equivalent is. 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.
There is the olsons store run by nellies dad, but they do not have the coils. For example, in the first page of the book, if one looks at the alternatives for type 2g302, the replacement. 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. Diodes and transistors pdf 28p this note covers the following topics. Nov 08, 2016 d2394 datasheet 60v, 3a, npn transistor rohm, 2sd2394 datasheet, d2394 pdf, d2394 pinout, d2394 manual, d2394 schematic, d2394 equivalent, d2394 data. Transistor substitution desoldering and replacing a transistor takes very little time.
How to choose a replacement for a bipolar transistor alltransistors. The original transistor might need special ordering, or be discontinued and unavailable. Looking for equivalent transistor electrical engineering. Most have a way to say i need a transistor like this. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. Or, point me to an article that explains transistor specifications and how to read them. Cross reference universal transistor reference page 1.
There are many bipolar transistors, and most of them have many analogues, which are similar in their parameters, so that the search for the replacement usually. Understanding transistor replacement, substitution and information is very important for a electronic repairer. Handbook of transistor equivalents and substitutes babani. In practice, if you use a low powered soldering iron it takes longer to solder the joint, so the heat spreads further, increasing the risk of damage. Transistor equivalent book pdf free download by corfikome. 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.
The leads were anchored in a small glass block, allowing the transistor to be constructed above it, and then the whole upper part was sealed in a white epoxy block. At the maximum voltage, also called a breakdown voltage bv, electrons. Is there anything available to see if a particular transistor can be replaced with a different one. Look for something an npn transistor might be called an rf transistor, of course with similar or somewhat higher ft, similar or somewhat lower cob, and hfe in the same range to make it more likely it oscillates, and similar or somewhat higher pd, vceo, and ic to make sure it doesnt burn out package is up to you whether you want to try to duplicate it or not that one to106. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor. It has a decent gain value hfe of maximum 700 and is highly linear. Electronicstransistors wikibooks, open books for an open world. 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. Vrt comparison table for semiconductors from a to z edition. Buy handbook of transistor equivalents and substitutes babani press handbook by babani, bernard b isbn. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Choosing transistor replacements electronics notes.
K3561 datasheet nch transistor, vdss 500v toshiba, 2sk3561 datasheet, k3561 pdf, k3561 pinout, k3561 equivalent, k3561 data, circuit, k3561 schematic. If you have already placed an order then we will be sending it asap. Any orders placed through this store will not be honored or fulfilled. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by adrian michaels isbn. Smallsignal transistor data book, 86 pages, 1984, motorola.
Everyday low prices and free delivery on eligible orders. Download book 200 transistor circuits talking electronics. Alternatively equivalent s to these transistors would help. Pls i need transistor equivalent of ztx300 and 2n3705.
A substitute transistor must have the same polarity, either pnp or npn, as the original. International transistor equivalents guide bernard babani. D2394 datasheet 60v, 3a, npn transistor rohm, 2sd2394 datasheet, d2394 pdf, d2394 pinout, d2394 manual, d2394 schematic, d2394 equivalent, d2394 data. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. Diode 1n9148 1n4307 1n4532 diode 1n3605 2n2222 chip 2n2369 transistor se708 ma1704 ma1703 text.
Weve got a frys close to my work, but i dont find for example tip122 or tip36c when i do a search. 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. More time is spent figuring out which one to replace and, sometimes, what to replace it with. In certain cases, the quoted collector current may be exceeded. It was used for a good number of years and contains thousands of types. Knowing how to substitute an alternate transistor type can speed up your. The period books often suggested the use of a small soldering iron of around 15 watts when soldering transistors. Mpsa44 datasheet, equivalent, cross reference search. Transistor acts like an open switch between collector and emitter i. Transistor equivalents for the substitution of modern transistors in elderly projects. Mar 10, 2009 all the substitution books i have seen have been highly unreliable. 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. Electronicstransistors wikibooks, open books for an.
Pinball transistor equivalent chart, or how to read. 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. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Below is the cross reference for the 9014 transistor. Semiconductor transistor, diode, ic cross reference. Transistor equivalents for the substitution of modern. Understanding transistor replacement, substitution and. Download ic database equivalent guide 100 thousand. Nov 17, 2016 k3561 datasheet nch transistor, vdss 500v toshiba, 2sk3561 datasheet, k3561 pdf, k3561 pinout, k3561 equivalent, k3561 data, circuit, k3561 schematic. The bipolar junction transistor transistor basics 1 bipolar junction transistor model a bipolar junction transistor bjt can be in three modes.
Of course, if you had a time machine, you could visit the peter vis hardware mercantile store, and i will pack all of these items for you in a nice brown paper bag. Should you find any info that can fill in any of the blanks in the matrix below. Original transistor type original alternative type modern substitute alternative substitute. All the substitution books i have seen have been highly unreliable. 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 2n2222 is a common npn bipolar junction transistor bjt used for general purpose. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. Vrt comparison table for semiconductors from a to z. Years ago there were books for transistor equivalents. Look for something an npn transistor might be called an rf transistor, of course with similar or somewhat higher ft, similar or somewhat lower cob, and hfe in the same range to make it more likely it oscillates, and similar or somewhat higher pd, vceo, and ic to make sure it doesnt burn out.
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. Select a replacement transistor with equivalent ft. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. Book this book does not require a rating on the quality scale. Semiconductors data sheet book, halfpage m3d186 mpsa44 npn highvoltage transistor. The apidictor was designed in the early 1950s and contained three types of transistor, each of which could be of two specified types, but none of these are in general supply as of the early 2000s. Second book of transistor equivalents american radio history. The c945 is an age old japanese bipolar audio frequency npn transistor. 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. The idea was that the lower power would prevent that parts becoming too hot. For the best answers, search on this site mosfets are a type of transistor but they dont function like a bijunction transistor, like the 2n3055. World transistor equivalents data az by eca author 4. Uk 240320 we have decided not to take any more orders at the moment. The 2n3439 and 2n3440 are silicon epitaxial planar npn transistors in.
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