Most projects will specify a particular transistor, but if necessary you can usually substitute. Check our section of free e books and guides on transistor circuits now. The next most important parameter is possible ft the effective maximum operating frequency although the transistor is of no use at that frequency. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. E silicon npn triple diffused planar transistor complement to type 2sb1647 application. The links at left may help you to research your own replacement transistors. The continuous current is much lower typ 50 to 100 ma. Mj15003 nte equivalent nte60 npn high power transis. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. A substitute transistor must have the same polarity, either pnp or npn, as the original. If talking about the rangemaster, one has to mention the vintage oc44, a germanium pnp transistor, and the key device to retaining this excellent tone with boost. Toshiba transistor silicon pnp epitaxial type pct process.
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. International transistor equivalents guide bernard babani. Free transistor circuits books download ebooks online textbooks. Specifications absolute maximum ratings at ta25 c, 70 ma collector dissipation pc 250 mw junction temperature tj 150. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Npn 500ma 50v digital transistors bias resistor builtin transistors. Obsolete transistor equivalents all about circuits. 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. Select a replacement transistor with equivalent ft.
Dodgy ebay replacements are available but im aware that this is not necessarily the best route to go down. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. Transistor equivalent page 6 electronics forum circuits. More than 490,000 part numbers, type numbers, and other identifying numbers listed. Transistor faults, testing and replacement it is a common belief that valves are unreliable and that transistors last forever. 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. Semiconductor transistor, diode, ic cross reference. Nov 30, 2015 transistor gain drops with increasing frequency.
Toshiba transistor silicon npn epitaxial type pct process, rn1204 datasheet, rn1204 circuit, rn1204 data sheet. Alternatively equivalents to these transistors would help. 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. Pinball transistor equivalent chart, or how to read. Robomart is trusted online store to buy 2sx series transistors, 2sa general purpose transistors, 2sa transistors online at very affordable price in india.
Semiconductors data sheet book, halfpage m3d186 mpsa44 npn highvoltage transistor. Design and application of transistor switching circuits. It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. Download ic database equivalent guide 100 thousand. 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.
Mar 27, 2015 hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors. Npn 100ma 50v digital transistors bias resistor builtin transistors. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. The c1815 transistor is a generalpurpose transistor and can also used as an audio frequency amplifier. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Rca transistor thyristor and diode manual sc14 and a great selection of related books, art and collectibles available now at.
Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor. 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. Bjt transistor collector current electrical engineering. If you install the wrong polarity, the sandwich wont work. Semiconductortransistor crossreference list peavey.
Knowing how to substitute an alternate transistor type can speed up your. C1815 cross reference electronic circuits, tv schematics, audio. Or, point me to an article that explains transistor specifications and how to read them. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. 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. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. Transistor npn silicon 140v 20a to3 hipower audio amp compl to nte61. Obviously, amplifiers and oscillators should operate somewhat below this frequency. 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. 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 reverseconnected zener diodes wired between the collector and emitter terminals, with the base terminal wired to their common point. 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.
Data sheet book, halfpage m3d186 bc337 npn general purpose transistor 1999 apr 15 product. Enn8062 15gn03f npn epitaxial planar silicon transistor vhf, package permitting applied sets to be small and slim. Crossreference search result equivalent transistors type. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. 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. C9018 datasheet pdf ktc9018, npn transistor kec, ktc9018 datasheet, c9018 pdf, c9018 pinout, c9018 equivalent, c9018 circuit, c9018 schematic. Uk vintage radio repair and restoration transistor.
The second letter informs you what the device is designed to do. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Mpsa44 transistor datasheet pdf, mpsa44 equivalent. Toshiba, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Data sheet 2sc6090ls npn triple diffused planar silicon transistorcolor tv horizontal deflection output applications tokyo office tokyo bldg. Hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors.
Book this book does not require a rating on the quality scale. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. Pcp1201 npn epitaxial planar silicon transistor highvoltage switching applications. Buy handbook of transistor equivalents and substitutes babani press handbook by babani, bernard b isbn. Mpsa44 datasheet, equivalent, cross reference search. Static equivalent circuits of npn and pnp transistors. Cross reference universal transistor reference page 1. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. In fact valves are nowhere near as unreliable as people think repairers would often claim a valve had failed and charge for it to cover the cost of the time spent finding and replacing a couple of faulty capacitors. 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 transistors in elderly projects. Transistor codes surface mount, pnp, npn, choosing. Toshiba transistor silicon pnp epitaxial type pct process 2sc1959 audio frequency low power amplifier applications driver stage amplifier applications switching applications excellent hfe linearity.
Transistors substitutionsequivalents all about circuits. It has been very useful for me because it doesnt provide only the nte replacements. Does anyone have any information on quality equivalents for these transistors. Mar 10, 2009 all the substitution books i have seen have been highly unreliable. This version of the oc44 is the preferred glass version.
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. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. 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. A transistor like the pn2222 that has 500 ma continuous 1 a peak spec is common for this application. The original transistor might need special ordering, or be discontinued and unavailable. Transistor substitution desoldering and replacing a transistor takes very little time. Also, the way that i was taught to do this is to take the thevenin voltage equivalent to get vb, in so for part a, the thevenin resistance would be 5k ohms and the thevenin voltage would be 2. Understanding transistor replacement, substitution and information is very important for a electronic repairer. Bipolar transistor crossreference search equivalent. Transistor equivalents for the substitution of modern.
Choosing transistor replacements electronics notes. C denotes that the device is a lowpower device for low frequency work as opposed to d which is a higher power device for high power applications or f which denotes a transistor with a wide bandwidth for high frequency functions. Is there anything available to see if a particular transistor can be replaced with a different one. Diode 1n9148 1n4307 1n4532 diode 1n3605 2n2222 chip 2n2369 transistor se708 ma1704 ma1703 text. Understanding transistor replacement, substitution and. One or two letters are usually followed by a series of numbers, and then possibly more numbers. Weve got a frys close to my work, but i dont find for example tip122 or tip36c when i do a search. Everyday low prices and free delivery on eligible orders. Alternatively equivalent s to these transistors would help. Audio, series regulator and general purpose absolute maximum ratings ta25c electrical characteristics ta25c external dimensions mt100to3p symbol 2sd2560 unit symbol conditions 2sd2560. In certain cases, the quoted collector current may be exceeded.
Finding transistor replacement can take you hours if you dont know the right method to do it. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. Download ic database equivalent guide 100 thousand components toni april 17, 2017 april 4, 2012 datasheet, download ic software database dated 2003 with database information from more than 100,000 semiconductors such as transistors and integrated circuits. Should you find any info that can fill in any of the blanks in the matrix below. At the maximum voltage, also called a breakdown voltage bv, electrons.
Uk vintage radio repair and restoration transistor faults. Bc337 datasheet, equivalent, cross reference search. More time is spent figuring out which one to replace and, sometimes, what to replace it with. The majority of transistors are coded for easy identification although these designations can vary by manufacturer. Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Vrt comparison table for semiconductors from a to z. Original transistor type original alternative type modern substitute alternative substitute.
Handbook of transistor equivalents and substitutes babani. Bc288 datasheet, equivalent, cross reference search. Alternatively is it used in any top end gear or mentioned on audio sites as being good, diyaudio for example. The design of this piece gives the pedal a boost that is far less transistory in.
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