Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Discover book depositorys huge selection of transistors books online. Likewise, if the original was a bc147, then check the circuit carefully to see what voltage the transistor might be subjected to, and replace with a bc107 or bc547 if in doubt. Vrt comparison table for semiconductors from a to z. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. It has been very useful for me because it doesnt provide only the nte replacements. Bc549c transistor the bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. Bc148 datasheet, equivalent, cross reference search. Most of the graphs in the book have been changed, the remainder will. 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. Transistor equivalent circuit shows, bipolar power transistor data book 1996. That is good practice when controlling a dc relay with any semiconductor. Its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0. Hi you can use bc109c, bc209c, bc549c or bc550c the last, the best.
Transistor equivalent book pdf free download by corfikome. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Bc148 transistor transistor bc149 npn transistor bc148 bc158 transistor transistor bc118 transistor bc5 transistor bc117 transistor bc148 bc117 transistor text. Lowfrequency general purpose transistors will be transferred to sc3 later in 1979. Bc147 was an extremely popular npn transistor originally released in the mid 1070s bt philips semiconductor for audio applications.
A substitute transistor must have the same polarity, either pnp or npn, as the original. Pinning pin description 1 emitter 2 base 3 collector fig. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Allieds handbook of transistor fundamentals author. Initially in metal to18 packages, the range expanded. Bc149 datasheet, equivalent, cross reference search. Free transistor circuits books download ebooks online. The best equivalent transistors are the af12x series that are the same piece of. I have a small circuit which controls the speed of a dc motor as per the ambient temperature. Can you guys help me find out the transistors that can. Semiconductor transistor, diode, ic cross reference.
Aug 21, 2014 general electric transistor manual if that link goes away, you can sometimes find it for absurd. Aug 27, 2010 one part that you should add to the circuit is a 1n400x series 1n40011n4007 rectifier across the relay coil. In certain cases, the quoted collector current may be exceeded. Sot25 download easy to understand polish bc149 datasheet. Darlington free delivery possible on eligible purchases. In the american family, the 2n5818 is a good and easy choice. Can general purpose transistors like 2n3904, 2n4401, bc547, 2n2222, etc. Substitute to bc148 transistor electronics forum circuits. What books should one use to study mosfet, bjt transistor. I am kinda new to this circuit making stuff, and i took a introductory subject to electrical engineering. Alternatively equivalent s to these transistors would help. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books.
Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Bc327 cross reference electronic circuits, tv schematics, audio. 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. Bc327 cross reference electronic circuits, tv schematics. International transistor equivalents guide bernard babani. I have across this circuit across a lot of forums and was just wondering if i could replace bc547 q1 in the circuit with the commonly used 2n2222 npn transistor. What im attempting to create is my own transistor logic rs232 rs232 refers to the serial com1 port on computers. Transistor substitution desoldering and replacing a transistor takes very little time. Information source collector info sammler ktt 196970, tvt 197980 eca. 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. Npn silicon planarepitaxial transistor for general purposes. Invention of transistor was done by great american scientist mr. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. More than 490,000 part numbers, type numbers, and other identifying numbers listed.
If its just switching, then its much less important to get an exact equivalent and even something like a bc337 would probably do. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. Others, discontinued transistor data book 1975, scan, pdf. The best equivalent transistors are the af12x series that are the same piece of germanium, but mounted in a to72 case. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Reference books on integrated circuits, microcontrollers and transistors. Transistor codes surface mount, pnp, npn, choosing. Alternatively equivalents to these transistors would help. General electric transistor manual if that link goes away, you can sometimes find it for absurd.
The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. Although the software seems a bit ugly design running on dos, but it works perfectly with the database with many components and is free, makes an interesting tool to interested in electronics, want to know when information about a particular component or find a replacement. Find the pdf datasheet, specifications and distributor information. Knowing how to substitute an alternate transistor type can speed up your. Articles transistors in vintage radios marks pages home.
Bc149 cross reference electronic circuits, tv schematics, audio. Without it, induced voltages from the coil when the transistor turns off will eventually destroy the transistor. At the maximum voltage, also called a breakdown voltage bv, electrons. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Most projects will specify a particular transistor, but if necessary you can usually substitute. We can find the equivalent number of any transistor from equivalent book or. If you install the wrong polarity, the sandwich wont work. A bc108 transistor is an npn negativepositivenegative bipolar transistor. Vrt comparison table for semiconductors from a to z edition. So, if the original transistor was a bc149, its best to use a bc109 or bc549 as a replacement although in practice, the difference in noise might be negligible. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements.
They were created by philips and mullard in 1963 and introduced in april 1966. Simple circuit stereo audio amplifier with ic lm386. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. The original transistor might need special ordering, or be discontinued and unavailable. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. I want to build this circuit, but i dont have the proper transistors. Buy 10 pcs of bc338 npn general purpose transistor 25v 800ma. Bc149 transistor buy, price, datasheet, siliconark.
One of my interests is restoring vintage transistor radios. Bc109c datasheet, equivalent, cross reference search. Problem is, i cant find a bc148 transistor and im looking for a substitute. Transistor equivalent or substitute used for power amplifier. Everyday low prices and free delivery on eligible orders. Siemens, semiconductor manual, discrete industrial types 1974. Mar 11, 2008 its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0. For audio use, the bc147, bc148 and the bc149 were very popular as far as i can tell, the. Join date oct 2004 location west coast posts 7,942 helped 2331 2331 points 74,061 level 66. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics books articles from. Cross reference universal transistor reference page 1. Tags datasheet, download, electronic software, ic, transistor post navigation. Book this book does not require a rating on the quality scale. Check our section of free e books and guides on transistor circuits now.
Bc109c transistor equivalent substitute crossreference search bc109c datasheet pdf. Second book of transistor equivalents american radio history. I found a perfect simple circuit schematic which ive attached below, and ive purchased the breadboard, soldering iron and all. Text in other languages may differ dimensions whd incl. 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.
It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. This looks like the ubiquitous to18 package as used by the bc108 and similar but with a forth lead for the screen. Bc149 cross reference electronic circuits, tv schematics. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics books articles from europe, australia and many other countries. Jan 19, 2015 discover book depositorys huge selection of transistors books online. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. 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. Free transistor circuits books download ebooks online textbooks. More time is spent figuring out which one to replace and, sometimes, what to replace it with.
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