This need was provided for in my first book of transistor. The links at left may help you to research your own replacement transistors. Transistor equivalents for the substitution of modern transistors in elderly projects. Directions for determining the thermal resistance rths for cooling fins can be found on page 11.
Dodgy ebay replacements are available but im aware that this is not necessarily the best route to go down. Obsolete transistor equivalents all about circuits. World transistor equivalents data az by eca author 4. A to5 transistor with a p d of 3 watts might be able to dissipate 810 watts with a heat sink.
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. Understanding transistor cross reference, equivalent. Bel100n transistor datasheet pdf, bel100n equivalent. I during 80s and 90s, i used to search for components equivalents in books. 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. Select a replacement transistor with equivalent ft. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Bc549c datasheet, equivalent, cross reference search. More than 490,000 part numbers, type numbers, and other identifying numbers listed. Apr 17, 2017 download ic database equivalent guide 100 thousand components. Understanding transistor replacement, substitution and. International transistor equivalents guide bernard babani. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code.
Pinball transistor equivalent chart, or how to read. Bipolar transistors database contain more than 46000 transistor. 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. 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 adrian michaels isbn. Aug 21, 2014 general electric transistor manual if that link goes away, you can sometimes find it for absurd. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. Mar 27, 2015 hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors. Bipolar transistors database contain more than 46000 transistor data npn and pnp transistors. Bel 100n transistor pin diagram datasheet, cross reference, circuit and application notes in pdf format. Should you find any info that can fill in any of the blanks in the matrix below.
Design and application of transistor switching circuits. 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. Maximum power, called p d, is the overall power a transistor can dissipate, through heat, without burning up. Feature availability dependant on the ip telephony system. Semiconductor transistor, diode, ic cross reference. Bc327 cross reference electronic circuits, tv schematics, audio. Free transistor circuits books download ebooks online textbooks. Second book of transistor equivalents american radio history. Bc549c transistor datasheet pdf, bc549c equivalent. Transistor equivalents for the substitution of modern. Since the distribution of heat in the transistor crystal is not uniform and depends on voltage and.
Pc max ucb max uce max ueb max ic max ft max cctip pf hfe tj euro equivalent, usa equivalent, ussr equivalent, japan equivalent. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. 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 transistor equivalent circuit is usually a linear approximation that simplifies circuit analysis of transistor circuit. Equivalent circuits of transistors, physics tutorial. Allieds handbook of transistor fundamentals author. Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. 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. Three elements of twojunction transistor are given below.
Is there anything available to see if a particular transistor can be replaced with a different one. Finding transistor replacement can take you hours if you dont know the right method to do it. Parameters and characteristics a, data sheet mos field effect transistor pa switching nchannel power mos fet industrial use, datasheet4u. Cross reference universal transistor reference page 1. Semiconductortransistor crossreference list peavey. Crossreference search result equivalent transistors type. Choosing transistor replacements electronics notes. 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. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. All electronic repairers should know how to read the transistor cross reference equivalent book if they want to succeed in electronic repairs. Rca transistor thyristor and diode manual sc14 and a great selection of related books, art and collectibles available now at. 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.
Heat sinks and fans increase the ability of a transistor to dissipate heat. 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. The importance of transistor cross reference, datasheet, equivalent and specification. 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. Weve got a frys close to my work, but i dont find for example tip122 or tip36c when i do a search. Download ic database equivalent guide 100 thousand. 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. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Looking for equivalent transistor electrical engineering.
A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. Bipolar transistor crossreference search equivalent. Everyday low prices and free delivery on eligible orders. What books should one use to study mosfet, bjt transistor. If a mica insulation is used, the thermal resistance of the mica washer must be added, which amounts to about 0. Bjt equivalent circuit models ok, weve got the terminal currents defined in terms of our gain constants and each other. Check our section of free ebooks and guides on transistor circuits now. Transistor equivalent book pdf free download by corfikome. The transistor equivalent circuit can now be evolved with the twopole formulae for the transistor fundamental circuit in fig. This page contains list of freely available ebooks, online textbooks and tutorials in transistor circuits.
Or, point me to an article that explains transistor specifications and how to read them. Bel100n datasheet, equivalent, cross reference search. Does anyone have any information on quality equivalents for these transistors. Is there any webbased or stand alone program to do such service for transistors and ics. Circuit custom power supply for audio amplifier symmetrical. Free transistor circuits books download ebooks online. Nte is a company that specializes in cross referenced parts. It can be used for the various application like switching circuits, amplifying circuits, and. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts.