Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Bipolar transistors database contain more than 46000 transistor. Transistor equivalents for the substitution of modern transistors in elderly projects. Finding a replacement for your bipolar transistor tech. Semiconductor transistor, diode, ic cross reference. Download ic database equivalent guide 100 thousand components. A click on a product type takes you to the corresponding product information page on the nxp website. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. Free transistor circuits books download ebooks online textbooks. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Need to know if the part can handle the frequency or give. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available.
What books should one use to study mosfet, bjt transistor. Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. 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. Static equivalent circuits of npn and pnp transistors. T18291 motorola discrete semiconductors jotrin electronics. Youll learn to identify a transistor, understand the information described in a transistor datasheet, and learn the symbols used to identify the type of tra. Philips semiconductors product specification npn microwave power transistor lxe15450x, ghz and 1. It is much more confidential than frequently used bdx66c model. 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. 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. About 7 to 10 thousand transistor bars can be cut from each ingot of germanium. Cross reference universal transistor reference page 1. There are maximum values of i b, i c, and v ce that. When a semiconductor is placed in center between same type semiconductors the arrangement is called transistors.
Is there anything available to see if a particular transistor can be replaced with a different one. Nte is a company that specializes in cross referenced parts. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. Different types of transistors and its applications. Basecollector and baseemitter act like diodes baseemitter is forwardbiased, basecollector is reversebiased 3. Categorypolarityic valuebvceo value 704 x y zzz x odd number 7 pnp x even number 8 npn y. When a bjt conducts current between its collector and emitter, it will dissipate power. It is a blog created to share various information with you in more complete and detailed contents. Vrt comparison table for semiconductors from a to z. If a mica insulation is used, the thermal resistance of the mica washer must be added, which amounts to about 0. Transistor uses, transistor rules, common emitter circuit, small signal amplification, fieldeffect transistors, jfet operating regions. We have created this privacy policy in order to help express this commitment. Since the distribution of heat in the transistor crystal is not uniform and depends on voltage and.
Diodes and transistors pdf 28p this note covers the following topics. Oc202 to1 p ge 15 10 10 50 40 1 1 250 150nkt 224 to5 p ge 30 10 10 500 30 1 0. Transistor equivalents for the substitution of modern. Allieds handbook of transistor fundamentals author. 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 codes surface mount, pnp, npn, choosing. Oc202 to1 p ge 15 10 10 50 40 1 1 250 150nkt 224 to5. Select a replacement transistor with equivalent ft. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. A transistor outline number, or to, refers to a transistor s physical size, shape, and mounting style.
Motorola supply is committed to protecting the privacy of our customers and visitors, and ensuring the highest levels of security and confidentiality for their information. The operating characteristics of a transistor are all found on its data sheet. Directions for determining the thermal resistance rths for cooling fins can be found on page 11. Pc max ucb max uce max ueb max ic max ft max cctip pf hfe tj euro equivalent, usa equivalent, ussr equivalent, japan equivalent. Im trying to update as much information as possible, even if i can not find perfect information.
It has some important characteristics, notably a very high input resistance. With out knowing what and ware your are using it, you should choose a similar part. Unfortunately, however for the jfet, the mosfet has an even higher input resistance. Its current rating is only 200ma, but that is enough for most relays. The transistor outline doesnt usually tell you which of the three transistor leads connects to its base terminal b, its emitter terminal e, or its collector terminal c. Hi mk16820, after a quick check with some datasheets, it seems 1 bf494 and bf199 are not dropin i. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. You can always remember that the arrow points at the n material.
You can easily switch big, like great than 12 volt loads with this transistor s max 40 volt rating. Cross reference electronic circuits, tv schematics, audio. Apr 28, 2014 download bipolar transistors database for free. We can say that a transistor is the combination of two diodes it is a connected back to back. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Supplier for board level electronic components including t1829. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Find t1829 1 transistors related suppliers, manufacturers, products and specifications on globalspec a trusted source of t1829 1 transistors information.
The internal appearance of one these transistors is shown in figure 8. Bjt power rating is the maximum amount of power that a device can dissipate in a typical operating environment. Is there any webbased or stand alone program to do such service for transistors and ics. A proved replacement for unavailable t1829 1 5 or fw26025a1 models, which is often used in automobile engineering. Discrete semiconductors selection guide 2010 products for general applications bene. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. 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. 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 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 following discloses our information gathering and dissemination practices for our web site. Design and application of transistor switching circuits. It is shown as a diode for the be pn junction and a current source for the ce junction. Bipolar transistors database contain more than 46000 transistor data npn and pnp transistors. The importance of transistor cross reference, datasheet, equivalent and specification.
All electronic repairers should know how to read the transistor cross reference equivalent book if they want to succeed in electronic repairs. I want to share this experience and information with each other to create a blog that helps each other. Aug 21, 2014 general electric transistor manual if that link goes away, you can sometimes find it for absurd. Download ic database equivalent guide 100 thousand. For highside switch circuits, you need a pnp style bjt. Transistor equivalent book pdf free download by corfikome. 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. Part numbering system for peavey to3 power transistors. With more than 490,000 part numbers, type numbers, and other identifying numbers listed, technicians will have no problem locating the replacement or substitution information they need.
Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Transistor rules in order to take advantage of the nice behavior we want in the transistor, we must keep in mind the following rules. This transistor has a low collector capacitance and has excellent gain up to several megacycles. Electronic devices and circuit theory by robert boylestad. T18291 datasheet, t1829 1 pdf, t18291 data sheet, t1829 1 manual, t1829 1 pdf, t1829 1, datenblatt, electronics t1829 1, alldatasheet, free, datasheet, datasheets. Choosing transistor replacements electronics notes. Zs and zts are both 2pc4081q devices made by philips. Understanding transistor cross reference, equivalent.
How to choose a replacement for a bipolar transistor total. Download book 200 transistor circuits talking electronics. International transistor equivalents guide bernard babani. A bipolar junction transistor bjt is a common device used to amplify or switch electronic signals and electrical power. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Vrt comparison table for semiconductors from a to z edition. A zener diode is inevitably formed by each of the transistor s np or pn junctions, and the transistor is thus in static terms equal to a pair of reverseconnected zener diodes wired between the collector and emitter terminals, with the base terminal wired to their common point. The current amplification of the transistor b is large typically 100300.
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