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. Circuit custom power supply for audio amplifier symmetrical. The links at left may help you to research your own replacement transistors. The complementary pnp transistor to the bd187 is the bd188. A transistor is a semiconductor device used to amplify or switch electronic signals and electrical. If you install the wrong polarity, the sandwich wont work. Everyday low prices and free delivery on eligible orders. Free transistor circuits books download ebooks online.
Second book of transistor equivalents american radio history. 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. The original transistor might need special ordering, or be discontinued and unavailable. Nte is a company that specializes in cross referenced parts. Im putting together components for an intercom circuit i am hoping to build. Transistor uses, transistor rules, common emitter circuit, small signal amplification, fieldeffect transistors, jfet operating regions. Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. Book this book does not require a rating on the quality scale. Most projects will specify a particular transistor, but if necessary you can usually substitute. I cant find the bel187 transistor needed for the circuit. Free transistor circuits books download ebooks online textbooks.
General electric transistor manual if that link goes away, you can sometimes find it for absurd. Bc639 datasheet, equivalent, cross reference search. See all 2 formats and editions hide other formats and editions. Transistor substitution desoldering and replacing a transistor takes very little time. This page contains list of freely available ebooks, online textbooks and tutorials in transistor circuits. In certain cases, the quoted collector current may be exceeded. Allieds handbook of transistor fundamentals author. The first bipolar junction transistors were invented by bell labs william shockley, which applied. Cross reference electronic circuits, tv schematics, audio. Equivalent for the bel187 transistor datasheetparts. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. It can be used for the various application like switching circuits, amplifying circuits, and. 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. Could you please please recommend me a bookwebsitevideo or anything to understand transistors in an easy and simply way.
Is there anything available to see if a particular transistor can be replaced with a different one. The next most important parameter is possible ft the effective maximum operating frequency although the transistor is of no use at that frequency. Bel187 datasheet, bel187 pdf, bel187 data sheet, bel187 manual, bel187 pdf, bel187, datenblatt, electronics bel187, alldatasheet, free, datasheet, datasheets, data. Bel187 transistor datasheet pdf, bel187 equivalent. I during 80s and 90s, i used to search for components equivalents in books. With out knowing what and ware your are using it, you should choose a similar part. Is there any webbased or stand alone program to do such service for transistors and ics. 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. Transistors are nonlinear devices but all circuit analysis is premised on the circuit elements being linear so this causes. Vrt comparison table for semiconductors from a to z edition. All electronic repairers should know how to read the transistor cross reference equivalent book if they want to succeed in electronic repairs.
Looking for equivalent transistor electrical engineering. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. World transistor equivalents data az by eca author 4. A substitute transistor must have the same polarity, either pnp or npn, as the original. Transistor equivalents for the substitution of modern transistors in elderly projects.
International transistor equivalents guide bernard babani. Understanding transistor replacement, substitution and information is very important for a electronic repairer. 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. At the maximum voltage, also called a breakdown voltage bv, electrons. 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. 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. Download book 200 transistor circuits talking electronics. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. 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.
Calculate the base current ib to switch a resistive load of 4ma of a bipolar npn transistor which having the current gain. Diodes and transistors pdf 28p this note covers the following topics. Should you find any info that can fill in any of the blanks in the matrix below. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. D882 transistor introduction the world of electronic parts and. Finding transistor replacement can take you hours if you dont know the right method to do it. Bjt equivalent circuit models ok, weve got the terminal currents defined in terms of our gain constants and each other. Bd187 npn transistor complementary pnp, replacement, pinout, pin. A click on a product type takes you to the corresponding product information page on the nxp website. Bc549c transistor the bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549.
Discrete semiconductors data sheet book, halfpage m3d186 bc327 pnp general purpose transistor prod. Check our section of free ebooks and guides on transistor circuits now. Transistor codes surface mount, pnp, npn, choosing. Pls i need transistor equivalent of ztx300 and 2n3705. Vrt comparison table for semiconductors from a to z. Substitute with the correct part number, the equipment will work for a long time and sometimes the substitute transistor will even work better than the original part number. Npn transistor circuit working, characteristics, applications. Understanding transistor cross reference, equivalent. The datasheet of bel 187 transistor hello where can i find datasheet of bel 187, its a transistor regard advertisement 17th february 2005, 01. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Choosing transistor replacements electronics notes. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. Knowing how to substitute an alternate transistor type can speed up your.
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. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. Pc max ucb max uce max ueb max ic max ft max cctip pf hfe tj euro equivalent, usa equivalent, ussr equivalent, japan equivalent. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. More time is spent figuring out which one to replace and, sometimes, what to replace it with. Transistor cross reference, equivalent and specification is very important for every electronic repairer the importance of transistor cross reference, datasheet, equivalent and specification. Semiconductor cross reference book paperback july, 1996.
I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. Could you please please recommend me a book websitevideo or anything to understand transistors in an easy and simply way. Understanding transistor replacement, substitution and. The smd versions of the bd187 are available as the 2sd1623 sot89. Bipolar transistors database contain more than 46000 transistor data npn and pnp transistors. Cross reference universal transistor reference page 1. Download ic database equivalent guide 100 thousand. Bel187 datasheet, equivalent, cross reference search. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. View forum posts private message view blog entries view articles advanced member level 5 join date oct 2004 location west coast posts 7,942 helped 2331 2331 points. General purpose transistors technical data and comparison tables. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation.
Semiconductortransistor crossreference list peavey. Download ic database equivalent guide 100 thousand components. What books should one use to study mosfet, bjt transistor. 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. Bipolar transistors database contain more than 46000 transistor. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. Semiconductor transistor, diode, ic cross reference. 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. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. We can find the equivalent number of any transistor from equivalent book or. Design and application of transistor switching circuits.
Now a days the transistors of bel company are usually used. 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. Discrete semiconductors selection guide 2010 products for general applications bene. Discrete semiconductors data sheet book, halfpage m3d186 bc635. Recommend a book on transistor circuits and theory please. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor into the equipment. A transistor equivalent circuit is usually a linear approximation that simplifies circuit analysis of transistor circuit. Select a replacement transistor with equivalent ft. Transistor equivalents for the substitution of modern. Original transistor type original alternative type modern substitute alternative substitute. Calculate the base current of a bipolar npn transistor having the bias voltage 10v and the input base resistance of 200k.
Bel187 is a low voltage power npn tranasister manufactured by bharat electronics limited bel in india. 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. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Bc187 transistor high quality bc187data sheet is a general purpose switching and amplification,e. 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.