Buy international transistor equivalents guide bernard babani publishing radio and electronics books by adrian michaels isbn. Download ic database equivalent guide 100 thousand. Bc549 datasheet, equivalent, cross reference search bc has a decent gain value hfe from to. The transistor terminals require a fixed dc voltage to operate in the desired region of its characteristic curves. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Datasheet bc549 pdf these transistors are subdivided into three groups. Bc549 npn transistor complementary pnp, replacement. Smallsignal transistor data book, 86 pages, 1984, motorola. When this transistor is fully biased then it can allow a. Can a lightning detectors transistors be substituted with. Everyday low prices and free delivery on eligible orders. Bc549, bc550 complement to bc556, bc557, bc558, bc559, and bc560 ordering information part number marking package.
Bc 548 is a commonly used transistor that can be found easily. Can general purpose transistors like 2n3904, 2n4401, bc547, 2n2222, etc. Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. The collector current of the bc 548 transistor is 500 ma, whereas the collector current of the bc547 transistor is 100 ma. Npn transistor bc547 as a diode application note tda5142 r27 transistor bc547 mosfet current limiter r17a transistor t bd438 equivalent equivalent transistor bc547 text. If a bipolar transistor is used the collector current ict is mainly, of the tda5142 switches between va and gnd. 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.
I have a small circuit which controls the speed of a dc motor as per the ambient temperature. Buy products related to bc547 transistor products and see what customers say about bc547 transistor products on free delivery possible on eligible purchases. Hi, im currently repairing an amp with 2sb688a and 2sc5179 npn pnp complementary pair output transistors. 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. The 2n3904 has a maximum collector current rating of 200 ma and power dissipation of 625 mw.
The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. Circuit audio preamplifier with a bc549 transistor. Bc549 has very low continuous current of 100ma hence it cannot be used to switch heavy loads. 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. Maximum power, called p d, is the overall power a transistor can dissipate, through heat, without burning up. Smallsignal transistors replacement list bc337a bc337 equivalent type bc338 bc337 bc33816 bc33716 bc33825 bc33725 bc33840 bc33740 bc36816 bc63516 bc36825 bc63516 equivalent type bc547a bc546a bc548 bc547 bc548a bc546a bc548b bc547b bc548c bc547c bc549. The assignment of transistor elements b,c,e to leads, i. Bc547 higher voltage and bc549 lower noise devices, that correspond to. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european. This compares well with the bc547, bc548, and bc549 general purpose transistors which have a peak. 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. My problem is i couldnt find the two transistors, npn bc548 and pnp bc559 at any of my nearby radio shacks.
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. What im attempting to create is my own transistor logic rs232 rs232 refers to the serial. They were created by philips and mullard in 1963 and introduced in april 1966. Is there any webbased or stand alone program to do such service for transistors and ics. Bc549, bc549 npn general purpose transistor, buy bc549 transistor. Semiconductors data sheet book, halfpage m3d186 bc549.
Motorola order this document semiconductor technical data by bc549bd low noise transistors npn silicon bc549b,c bc550b,c collector 1 2 base 3 emitter 1 maximum ratings 2 3 rating symbol bc549 bc550 unit case 2904, style 17 collectoremitter voltage vceo 30 45 vdc to92 to226aa collectorbase voltage vcbo 30 50 vdc emitterbase. General purpose transistors technical data and comparison tables. Bc548, bc548 datasheet, bc548 npn general purpose transistor datasheet, buy bc548 transistor. Dec 29, 2015 this simple circuit can be used to boost the signal sources that are not able to excite your amplifier, or from entering your pc, such as microphones for low and medium impedance, soundheads, guitar pickups, guitar, etc.
A to5 transistor with a p d of 3 watts might be able to dissipate 810 watts with a heat sink. 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. The gizmodo images provided in figure 1 are of a fieldeffect transistor or fet left and lighteffect transistor or let right. Free tools for electronics designers, eagle libraries. Limiting values in accordance with the absolute maximum rating system iec 4. This is where a pnp transistor differs from a npn transistor, a logic state blue colour is used to toggle between ground and signal voltage emitterbase voltage v be as shown below. The figure thats most likely to be relevant when used as a switch is collector current.
These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. Dodgy ebay replacements are available but im aware that this is not necessarily the best route to go down. Bc546, bc547, bc548, bc549, bc550 are npn switching and amplifier transistors with low noise and working at high voltage. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. Smd equivalent the smd versions of the bc549 are available as the bc848 sot23, bc848w sot323, bc849 sot23 and bc849w sot. Free transistor circuits books download ebooks online. Bc550 npn general purpose transistors 1999 apr 22 product 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. Please note, due to government restrictions on logistics and no commercial activity around covid19, store is not processing any order till further notice, any order placed will be autocancelled. It has all similar characteristics including pin to pin compatibility and other major electrical characteristics as evident. Bc807 bc808 bc817 bc818 bc846 bc847 bc848 bc849 bc850 bc856 transistors bc337 transistor equivalent bc337 hie hre hfe equivalent transistor bc547 bc547 sot 23 transistor bc337 hie.
I decided to use ksp2222a to replace the bc548, and mpsh10 for the bf494. Apr 01, 2009 hello everybody, im currently taking electrical engineering as senior physics major at fordham university and have decided to take on a little side project to gain a better understanding. Diodes and transistors pdf 28p this note covers the following topics. 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. Npn epitaxial silicon transistor if you agree to this agreement on behalf of a company, you represent and warrant that you have authority to bind such company to this agreement. Obsolete transistor equivalents all about circuits. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. Applications low noise stages in audio frequency equipment. Buy products related to bc547 transistor products and see what customers say. Bc550 npn general purpose transistors 1999 apr 22 product specification supersedes data of 1997 jun 20 philips semiconductors product specification npn general purpose transistors bc549.
Bc550 datasheet, equivalent, cross reference search. Bc550 npn general purpose transistors audio design guide. Bc549 datasheet, equivalent, cross reference search. The complementary pnp transistor to the bc549 is the bc559. Symbol vcbo bc549 bc550 vceo collectoremitter voltage bc549 bc550 vebo ic icm ibm ptot tstg tj tamb note 1. This data sheet contains target or goal specifications for product development. The term of this agreement is perpetual unless terminated by on semiconductor as set forth herein. This article describes bc548 transistor pinout, equivalent, uses, features and other information about this device. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34.
Cross reference universal transistor reference page 1. Its way better than to run all the way down to electronics stores, roam from one store to another, and finally buy items with sky high prices. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european and american electronic equipment. Bc548 transistor pinout, equivalent, uses, features. Design and application of transistor switching circuits. Can i replace a 2n222 by a bc558b, bc549c or bc327. Bc547 datasheet, bc547 pdf, bc547 data sheet, bc547 manual, bc547 pdf, bc547, datenblatt, electronics bc547, alldatasheet, free, datasheet, datasheets, data sheet. These transistors are utilised in audio frequency, and small.
Transistor codes surface mount, pnp, npn, choosing. What can i use in the replacement of a bc549 transistor. Bc549c is an npn transistor in a small plastic case. Please consult the most recently issued document before initiating or.
Be the first to know about our newest products, specials and promotions. Does anyone have any information on quality equivalents for these transistors. 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. 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.
Home t transistors bc series bc549 bc549b transistor npn 30v 0. After comparing the spec sheets online and doing a little bit of googling, i found that pnp transistor. Please consult the most recently issued document before initiating or completing a design. Heat sinks and fans increase the ability of a transistor to dissipate heat. Bc546 bc547 bc548 bc549 bc550 npn epitaxial silicon transistor. So called equivalent parts, or nte replacements, may. Can a lightning detectors transistors be substituted with bc547 or 2n3904. 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 from the 1960s. In certain cases, the quoted collector current may be exceeded. The collector current of the bc 548 transistor is 500 ma, whereas the collector current of the bc547 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. I want to build this circuit, but i dont have the proper transistors.
Bc549 bc550 bc549 c120 550rev 081205e cbc550 bc549 to92 pin configuration npn transistor bc550 k bc549. Is there anything available to see if a particular transistor can be replaced with a different one. The components are really affordable, and the products arrive within days after ordering. It can also be replaced with some well know transistors. Discrete semiconductors data sheet book, halfpage m3d186 bc549. Bc549c datasheet, equivalent, cross reference search. International transistor equivalents guide bernard babani.
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