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. Bc557 pnp ge neral purpose transistors product speci. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. The 2sb737 is a specially designed low noise transistor, you cant just drop in a general purpose device and expect similar performance. Cross reference electronic circuits, tv schematics, audio. Bipolar, power, rf, digital, igbt, unijunction, fet, jfet, and mosfets. Choosing transistor replacements electronics notes.
Diodes and transistors pdf 28p this note covers the following topics. 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. Should you find any info that can fill in any of the blanks in the matrix below. Vrt comparison table for semiconductors from a to z edition. In certain cases, the quoted collector current may be exceeded. Bc556, ab bc557, abc bc558, abc pnp general purpose transistor collector 3 p b leadpbfree 2 base 1 2 3 1 emitter to92 maximum ratings. Tip122 transistor pinout electrical engineering books, electrical projects, electronic. Looking for equivalent transistor electrical engineering. Transistors substitutionsequivalents all about circuits.
Transistor replacement table for transistor datasheet. Now weve got to come up with a model for the entire device that we can put in an electrical circuit for design and analysis. Select a replacement transistor with equivalent ft. Bc557, bc557 datasheet, bc557 pnp general purpose transistor datasheet, buy bc557 transistor.
At the maximum voltage, also called a breakdown voltage bv, electrons. Design and application of transistor switching circuits. Download book 200 transistor circuits talking electronics. Bu515 can be replaced with bu508, because both are used in tv horizontal deflection section. When a transistor is used as a switch it is operated in the saturation and cutoff region as explained above. The importance of transistor cross reference, datasheet, equivalent and specification. Bjt equivalent circuit models ok, weve got the terminal currents defined in terms of our gain constants and each other. A substitute transistor must have the same polarity, either pnp or npn, as the original. Transistor equivalente e pinagem linkedin slideshare. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable.
Check our section of free e books and guides on transistor circuits now. We offer 12 months warranty on this product from its date of purchase. Years ago there were books for transistor equivalents. Everyday low prices and free delivery on eligible orders. Bc557 transistor introduction the world of electronic parts. This is available from altronics stores, online purchases or altronics resellers. Book this book does not require a rating on the quality scale. Free transistor circuits books download ebooks online textbooks. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective. Transistor equivalent c945 may be insufficient information to determine an accurate replacement device. Obsolete transistor equivalents all about circuits. Transistor substitution desoldering and replacing a transistor takes very little time. Semiconductor transistor, diode, ic cross reference. Bc556557558559560 pnp epitaxial silicon transistor absolute maximum ratings ta25c unless otherwise noted electrical characteristics ta25c unless otherwise noted hfe classification symbol parameter value units vcbo collectorbase voltage.
Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. Making a transistor radio ladybird book internet archive. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. Technical information motorola semiconductor bc557 datasheet. You can always remember that the arrow points at the n material. Free transistor circuits books download ebooks online. Understanding transistor cross reference, equivalent. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. 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. 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 equivalents for the substitution of modern.
Bc557 transistor introduction the world of electronic parts and. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. International transistor equivalents guide bernard babani. Features, discrete semiconductors data sheet book, halfpage m3d186 bc556. This book also has a very comprehensive glossary, index, and equations. Knowing how to substitute an alternate transistor type can speed up your. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Below is the cross reference for the 9014 transistor.
Mar 10, 2009 all the substitution books i have seen have been highly unreliable. Bc558559 805030 v v v vceo collectoremitter voltage. Bc548 transistor the bc548 is a generalpurpose npn bipolar junction transistor commonly used in european and american electronic equipment. 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. Discover book depositorys huge selection of transistors books online. It has been very useful for me because it doesnt provide only the nte replacements. World transistor equivalents data az by eca author 4. Bc556b transistors datasheet pdf purpose transistors. Data sheet nec silicon transistor 2sc4227 high frequency low noise amplifier npn silicon epitaxial transistor super mini mold description the 2sc4227 is a low supply voltage transistor designed. T 25 c unless otherwise noted a rating symbol bc556 bc557 bc558 unit v 65 45 collectoremitter voltage eco 30 v 30 v collectorbase voltage cbo 80 50 v v ebo emitterbase voltage 5 5 5 v l. Finding transistor replacement can take you hours if you dont know the right method to do it.
Transistor equivalent book pdf free download by corfikome. It is notably often the first type of bipolar transistor hobbyists encounter and is often featured in designs in hobby electronics magazines where a generalpurpose transistor is required. 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. Original transistor type original alternative type modern substitute alternative substitute.
Does anyone have any information on quality equivalents for these transistors. Bc557 transistor pinout see the complete site com imagens. The data sheet is very important for every engineers and technicians because it can help them to find the nearest replacement for the components that they are. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. If the transistor is a pnp, then the arrow points to the base of the transistor, otherwise it points to the output. Bu100 bu326 2sb557 equivalent bd420 equivalent mje6044 equivalent. Most have a way to say i need a transistor like this.
Jan 19, 2015 discover book depositorys huge selection of transistors books online. This easytouse book covers all transistor types including. Collector current ma 4 nec, otherw ise specified in nec s d atasheets or data books. Understanding transistor replacement, substitution and. Transistor equivalents for the substitution of modern transistors in elderly projects. Alternative transistors for bc557 are 2n3906, 2n4403, bc556, bc327 output pins of some equivalents are different please see pinout details of the equivalent transistor before replacing in the circuit. 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. Download ic database equivalent guide 100 thousand. Dodgy ebay replacements are available but im aware that this is not necessarily the best route to go down. All the substitution books i have seen have been highly unreliable. Bc557 bc557 pnp general purpose transistor datasheet buy bc557.
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. The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. 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. The symbol of the transistor has an arrow on the emitter. Bc557 pnp general purpose transistors 1999 apr 15 product specification. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor. Bc557 transistor introduction the world of electronic. The next most important parameter is possible ft the effective maximum operating frequency although the transistor is of no use at that frequency. Bc557 is a widely used pnp bipolar junction transistor made of to92 small. Z1055 pnp bc557 t092h general purpose transistor altronics.
If you install the wrong polarity, the sandwich wont work. Mar 27, 2015 hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors. Bc557 datasheet, equivalent, cross reference search. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. Discrete semiconductors data sheet book, halfpage m3d186 bc556. 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. But all this is some ones idea of what a equivalent is. Semiconductors data sheet book, halfpage m3d186 bc556. The id printed on components can be misleading, and is sometimes a shortened version of all the info needed for an accurate crossreference.
The links at left may help you to research your own replacement transistors. Bc557 is a pnp transistor hence the collector and emitter will be closed forward biased when the base. Bc556557558559560 pnp epitaxial silicon transistor created date. Understanding transistor replacement, substitution and information is very important for a electronic repairer. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. 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. 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.
This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Bc557, 557b general purpose transistor page 3 310505 v1. 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. 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. Bc557 transistor pinout, equivalent, uses, features. The original transistor might need special ordering, or be discontinued and unavailable. It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. Vrt comparison table for semiconductors from a to z.
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