If you install the wrong polarity, the sandwich wont work. Guide to 2n series transistors approximate specs and characteristics. Principles of transistor circuits is a very good book, but this 2003 print of the ninth edition suffers badly from being digitised as the illustrations are almost illegible. But when you can find them and they work it is much less of a headache creating a part. Semiconductor transistor, diode, ic cross reference. It is functionally equivalent to the unijunction transistor. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the collector, base, and emitter leads. How to choose a replacement for a bipolar transistor total.
Gain wise i think they are between the mpf102s and j201s. Select a replacement transistor with equivalent ft. Diodes and transistors pdf 28p this note covers the following topics. Vrt comparison table for semiconductors from a to z edition. Channel for higher gain drain and source interchangeable high ac input impedance high dc input resistance low transfer. Mpf105 25 1 4 16 2000 6000 8 7 3 330f 73 mpf109 25 1 0. Stompville samples of 2n5457 with idss between 4 and 5 ma have a cutoff voltage a little under 2. I havent run into any duds yet but will update if i do. About 7 to 10 thousand transistor bars can be cut from each ingot of germanium.
Fairchild 2n5457 nchannel jfet, 3pin to92 rs components. Ive built a few rats using j201s and have never had. Here is an image showing the pin diagram of the this transistor. Vrt comparison table for semiconductors from a to z. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. If you need one, i would recommend that you buy one of the previous editions from 2000 or earlier i ended up buying a copy of the eighth edition from 1998, and the. Im actually datxsheet actively searching for 2n you might want to examine this site as it contains a few components and other things concerning multisim that may be of interest. Afaik this need to operate at low voltage is why pedal designs tend to use j201 and 2n5457, because those types have some of the smallest. At the maximum voltage, also called a breakdown voltage bv, electrons. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Tell you about the 2n5457 overview, 2n5457 pinout, 2n5457 features, 2n5457 equivalent and 2n5457 datasheet. This transistor has a low collector capacitance and has excellent gain up to several megacycles. Transistor equivalents for the substitution of modern transistors in elderly projects. Even after mosfets became widely available, the bjt remained the transistor of choice for many analog circuits such as simple amplifiers because of their greater linearity and ease of manufacture.
Any jfet should work for this circuit, as the transistor is being used as a buffer rather than an amplifier. Should you find any info that can fill in any of the blanks in the matrix below. Hey all, im planning to do quite a few builds in the near future that require the j201 andor 2n5457. Everyday low prices and free delivery on eligible orders. The links at left may help you to research your own replacement transistors. 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. Transistor equivalent or substitute used for power amplifier. Nte457 silicon n channel jfet transistor general purpose. 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. Years ago there were books for transistor equivalents. Most have a way to say i need a transistor like this. Check our section of free e books and guides on transistor circuits now. Device mounted on a printedcircuit board, minimum lead length 3 mm, mounting pad for drain lead minimum 10 mm 10 mm. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts.
From the stompville matching archive, typical samples of 2n5457 have an idss between 2. The same high quality transistors used by jhs pedals and other leading makers of fine electronics. On means current is flowing through the transistor therefore vbe. Others, basic transistor and cross reference specification, scan, pdf. As this book contains many thousands of transistors, it has. I choose jfet transistors 2n5457 as the introduction theme. Transistor equivalent book 2sc2238 free download as pdf file. The 2n32 is an rca pointcontact transistor in a singleended package that has all leads emerging from the same end. If the transistor is a pnp, then the arrow points to the base of the transistor, otherwise it points to the output. Ic software database dated 2003 with database information from more than 100,000 semiconductors such as transistors and integrated circuits. For miscellaneous breadboarding, this collection seems to have the part i need about 70% of the time, which is nice. Channel junction field effect transistors, depletion mode type a designed for audio and switching applications. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. Original transistor type original alternative type modern substitute alternative substitute.
You can always remember that the arrow points at the n material. International transistor equivalents guide bernard babani. Channel features drain and source are interchangeable s prefix for automotive and other applications requiring unique site and control change requirements. Second book of transistor equivalents american radio history. Is there anything available to see if a particular transistor can be replaced with a different one. 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. Symbol parameter value unit rthja thermal resistance from junction to ambient 200 kw symbol parameter conditions min. Ive read some posts about this but wanted the opinions and experiences you all have had, what are good replacements for those 2 transistors. Free transistor circuits books download ebooks online textbooks. A substitute transistor must have the same polarity, either pnp or npn, as the original.
Zs and zts are both 2pc4081q devices made by philips. The bipolar junction transistor, or bjt, was the most commonly used transistor in the 1960s and 70s. Download book 200 transistor circuits talking electronics. Jameco electronics 2n5457 transistor to 92 jfet, n channel, 25v, 1. Jfet transistors 2n5457datasheetpinoutfeatures jotrin. Choosing transistor replacements electronics notes. Jameco will remove tariff surcharges for online orders on instock items learn more. In certain cases, the quoted collector current may be exceeded. Download ic database equivalent guide 100 thousand components. Transistor equivalent book pdf free download by corfikome. 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. Free transistor circuits books download ebooks online.
Free, halogen freebfr free and are rohs compliant maximum ratings rating. 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 symbol of the transistor has an arrow on the emitter. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. The internal appearance of one these transistors is shown in figure 8. Download ic database equivalent guide 100 thousand. The characteristics and approximate specifications of 2n series discrete transistors are generally the same between different manufacturers.
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. But all this is some ones idea of what a equivalent is. Cross reference electronic circuits, tv schematics, audio. Q101 qualified and ppap capable these devices are pb. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Transistor equivalent book 2sc2238 transistor integrated circuit. Mar 10, 2009 all the substitution books i have seen have been highly unreliable. Unit icbo collectorbase cutoff current 2n5550 vcb 100 v. Ive used 2n5457 s in place of j201s in a couple of builds. 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.
Transistor equivalents for the substitution of modern. 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. Home components hardware boards books kits futurlec the electronic components and semiconductor superstore shopping cart whats new. Semiconductortransistor crossreference list peavey. Buy fairchild 2n5457 nchannel jfet, 3pin to92 2n5457. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. Channel junction field effect transistors, depletion mode. I always thought that as long as a build didnt call for matched sets then as long as the transistor wasnt dead it was good to use. Bf245c limiting values in accordance with the absolute maximum rating system iec 4. Transistors substitutionsequivalents all about circuits. 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. Absolute maximum ratings ta 25c unless otherwise noted symbol parameter value units vdg draingate voltage 25 v.
861 714 503 223 870 713 267 1168 89 1474 52 1267 1144 995 1148 524 1134 1181 515 765 859 75 1173 190 394 1349 482 1350 1289 213 1210 296 1337 115 21 1470