Bc548 is a npn transistor so the collector and emitter will be left open reverse biased when the base pin is held at ground and will be closed forward biased when a signal is provided to base pin. Industry standard st nearest st replacement industry standard st nearest st replacement 1 different pin out 2 similar package 3 medium power transistor bc850b bc847b bc850c bc847c bc850w bc847bw bc850bw bc847bw bc850cw bc847cw bc857 bc857b bc857a bc857b bc857b bc857b bc857c bc857b bc857w bc857bw bc857aw bc857bw bc857bw bc857bw bc857cw bc857bw. This article describes bc548 transistor pinout, equivalent, uses, features and other information about this device. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. As discussed a transistor will act as an open switch during forward bias and as a closed switch during reverse bias, this biasing can be achieved by supplying the required amount of current to the base pin. We dont share your credit card details with thirdparty sellers, and we dont sell your information to others. About 7 to 10 thousand transistor bars can be cut from each ingot of germanium. A 314kb product overview view reliability data view. The pnp equivalent is the complimentary transistor, which is the bc557.
If you cant search it here, nowhere else in the world. Com is the biggest online electronic component datasheets search engine. It is designed for low current and power, medium voltage, and. Bc548 is a npn transistor so the collector and emitter will be left open when the base pin is held at ground and will be closed when a signal is. Bc548 transistor introduction the world of electronic parts and. I have seen many circuits using the 2n2222 transistor correct me if it isnt one. The bc548 is a part of a family of npn and pnp epitaxial silicon transistors that originated with the metalcased bc108 family of transistors. Apr 01, 2009 what im attempting to create is my own transistor logic rs232 rs232 refers to the serial com1 port on computers.
Bc548 transistor pinout, equivalent, working as amplifierswitch. They are fairly common there, used typically in lower power household electronics such as netbook processors and plasma televisions. Diodes and transistors pdf 28p this note covers the following topics. As viewed in the topright image, going from left to right, the pinout is as follows. Components study 555 projects construction solder books faq symbols starter kit tools. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the collector, base, and emitter leads. In the united states and canada, a similar transistor is named 2n3904. Everyday low prices and free delivery on eligible orders.
Bc548c datasheet, equivalent, cross reference search. The transistor comes in four different part numbers like bc548, bc548a, bc548b and bc548c and the only difference between the four is their dc current gain value, like bc548 current gain value is from 110 to 800, bc548a is from 110 to 220, bc548b is from 200 to 450, bc548c. What is the use of transistor bc548 in water level indicator. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european. My problem is i couldnt find the two transistors, npn bc548 and pnp bc559 at any of my nearby radio shacks. Discrete semiconductors data sheet book, halfpage m3d186 bc546. Transistors are one of the most important circuit board components, and replaced vacuum tubes in the mid20th century, allowing for the true miniaturization of electronics. The bc548 transistor is a semiconductor that works to switch electronic signals, and in some cases amplify them. Npn silicon transistors with similar properties are also made in a variety of small. Bc548 datasheet, equivalent, cross reference search. Small signal transistors industry standard st nearest st. I tried to get some parts from renowned electronic shops from mumbai, delhi and other cities but to no avail.
International transistor equivalents guide bernard babani. Problem is, i cant find a bc148 transistor and im looking for a substitute. Bc546b, bc547a, b, c, bc548b, c amplifier transistors npn silicon features pb. Bc548 transistor pinout, equivalent, uses, features. Can you guys help me find out the transistors that can. Pinning pin description 1 emitter 2 base 3 collector fig. Transistor equivalents for the substitution of modern. Unit vcbo collectorbase voltage open emitter bc546. Free transistor circuits books download ebooks online. 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. Is there anything available to see if a particular transistor can be replaced with a different one.
Substitute for 2n2222 electronics forum circuits, projects. Rating collector emitter voltage collector base voltage emitter base voltage collector current continuous total device dissipation 25c derate above 25c total device dissipation 25c derate above 25c operating and storage junction. Replacement devices index at the back of the book to see if there is a replacement part for the. Oct 26, 2017 bc557 transistor as switch when a transistor is used as a switch it is operated in the saturation and cutoff region as explained above. After hitting a roadblock on 2 beginner transistor books, this book has really clarified for me at least the first fundamentals of transistors, especially how the current flows in the input circuit and the output circuit. Transistor equivalent book pdf free download by corfikome. Amplifier transistor pin configuration 625mw bottom view c b e. Can general purpose transistors like 2n3904, 2n4401, bc547, 2n2222, etc.
Bc548 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. Substitute to bc148 transistor electronics forum circuits. Electronic components i was amazed to have come across your website. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. Bc559b bc557b bc559c bc557b 1 different pin out 2 similar package 3 medium power transistor industry standard st nearest st replacement industry standard st nearest st replacement. The complimentary transistor is very useful for symmetrical pushpull amplifier circuits. 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. 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 bc547 equivalent bc327 equivalent bc338 equivalent bc547 sot23. Bc546b, bc547a, b, c, bc548b, c amplifier transistors.
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. Download book 200 transistor circuits talking electronics. Free packages are available maximum ratings rating symbol value unit collector emitter voltage bc546 bc547 bc548 vceo 65 45 30 vdc collector base voltage bc546 bc547 bc548 vcbo 80 50 30 vdc emitter base voltage vebo 6. Transistor equivalent or substitute used for power amplifier. The maximum amount of current that could flow through the collector pin is 500ma, hence we cannot connect loads that consume more than 500ma using this transistor. Bc546 bc547 bc548 bc549 bc550 npn epitaxial silicon transistor 2002 fairchild semiconductor corporation. Thanks for a2a the bc548 transistor is used in water level indicator as a sensor. The symbol of the transistor has an arrow on the emitter. After comparing the spec sheets online and doing a little bit of googling, i found that pnp transistor 2n3906s characteristics and specs seem to fit pretty well with bc559 and bc548 fits fairly well with 2n3904s.
The bc548 family, including the bc547a to bc550c, are lower voltage, lower. Thus the bc548 or bc546 to 550 is a valid substitute in any circuit designed for the older bc108 or bc148, which includes many mullard and philips. Smallsignal transistor data book, 86 pages, 1984, motorola. You can always remember that the arrow points at the n material. If its just switching, then its much less important to get an exact equivalent and even something like a bc337 would probably do. Bc548 transistor replacement datasheet, cross reference, circuit and. Bc548 bc548 npn general purpose transistor datasheet buy bc548. Bc548c transistor datasheet pdf, bc548c equivalent.
This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. What is the difference between bc547 and 2n2222a transistor. The internal appearance of one these transistors is shown in figure 8. Maximum output current from ic check the ic datasheet. The bc548 is supplied in a standard to92 3pin package. Bc548c npn transistor complementary pnp, replacement. Vbe decreases by about 2 mvk with increasing temperature. Bc548 is another general purpose widely used transistor that can be easily get from reputable electronic components store, this transistor also have bunch of good features on the basis of which one can use it in their electronic circuit, it can handle maximum current of 500ma which is enough to drive many other components such as ics, other transistors, portion of a circuits, relays, leds etc. Original transistor type original alternative type modern substitute alternative substitute. 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. Here is an image showing the pin diagram of the this transistor. Aug 27, 2010 post the link my guess is the description is from someone that isnt a native english speaker a remote control is distinguished from a local control the local controls are physically located on the tv and must be operated in close proximity of the tv, i. Bc548 bc548a bc548b bc548c npn general purpose amplifier bc548 bc548a bc548b bc548c this device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 ma. Our payment security system encrypts your information during transmission.
Static equivalent circuits of npn and pnp transistors. I have use bc547 for a project water level indicator. Bc549c transistor the bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. Pnp silicon epitaxial planar transistor 1 high speed switching. Discrete semiconductors selection guide 2010 diodes, transistors, esd and signal conditioning devices excellence in portfolio and performance. Bc548 is an npn transistor, so when the base pin is grounded, the collector. Download ic database equivalent guide 100 thousand. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european and american electronic equipment. Com datasheet search site for electronic components and semiconductors and other semiconductors. Bc548 transistor pinout, equivalent, uses, features components. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. I found a perfect simple circuit schematic which ive attached below, and ive purchased the breadboard, soldering iron and all the exact resistors, capacitors and diodes required. This is identical in every respect to the npn type, except that it is a pnp type. To the untrained eye, a circuit board simply looks like a green piece of plastic with innumerable small.
The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower amplifying or switching applications. There are two types of standard bipolar junction transistors, npn and pnp, with. The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose. I want to build this circuit, but i dont have the proper transistors. It is nothing but a npn transistor the base current given by applying base emitter vo. I am kinda new to this circuit making stuff, and i took a introductory subject to electrical engineering. 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. Allieds handbook of transistor fundamentals author.
Circuit custom power supply for audio amplifier symmetrical. 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. Full text of national databooks 1982 national transistors databook see other formats. This transistor has a low collector capacitance and has excellent gain up to several megacycles. If the transistor is a pnp, then the arrow points to the base of the transistor, otherwise it points to the output. Motorola small5ignal transistors, fets and diodes device data. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. Absolute maximum ratings ta 25c unless otherwise noted. 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. I have a small circuit which controls the speed of a dc motor as per the ambient temperature. Transistor datasheetpdf dtc1zu3hzg rohm category transistor datasheetpdf rohm dtc1zu3hzg datasheet, npn 100ma 50v digital transistor bias resistor builtin transistor, central semiconductor corp cp588. Mar 11, 2008 its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0.
Check our section of free e books and guides on transistor circuits now. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. May 04, 2016 d1554 datasheet vcbo1500v, npn transistor toshiba, 2sd1554 datasheet, d1554 pdf, d1554 pinout, d1554 equivalent, d1554 data, circuit, d1554 schematic. While this book is a little outdated, it shows current going from the negative to positive terminal. Bc548 transistor pinout, equivalent, working as amplifier. The assignment of transistor elements b,c, e to leads, i. So i just wanted to know can the bc148 be used as a general substitute for 2n2222 or is it just the case in this. Zs and zts are both 2pc4081q devices made by philips. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. L smd databook electronic circuits, tv schematics, audio.
571 1477 689 949 303 1264 541 833 689 1320 1413 1571 389 1303 124 961 906 198 982 560 833 1307 564 223 510 625 992 991 1349 1144 229