Motorola reserves the right to make changes without further notice to any products herein. Bc548 datasheet, equivalent, cross reference search. Bc548, bc548 datasheet, bc548 npn general purpose transistor datasheet, buy bc548 transistor. Thanks for a2a the bc548 transistor is used in water level indicator as a sensor. Bc548 transistor input output characteristics youtube. I have seen many circuits using the 2n2222 transistor correct me if it isnt one. 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 pinout, equivalent, working as amplifierswitch. This article describes bc548 transistor pinout, equivalent, uses, features and other information about this device.
The transistor terminals require a fixed dc voltage to operate in. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit. The transistor terminals require a fixed dc voltage to operate in the desired region of its characteristic curves. Bc557 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. 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. Emitter npn epitaxial silicon transistor absolute maximum ratings ta25c unless otherwise noted symbol parameter value units vcbo collectorbase voltage. Transistor codes surface mount, pnp, npn, choosing. 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. Bfg10wx ot343n mbk523 r7701pp11 bc548 transistor replacement transistor bc548 philips capacitor rt5880 bc548 transistor bc548 bp he bc548 bc548 transistor bc548 equivalent mbg431. So i just wanted to know can the bc148 be used as a general substitute for. A transistor amplifies current and can be used as a switch, as explained on this page. Buy products related to bc547 transistor products and see what customers say. These transistors are the direct modern equivalent replacements to the earlier bc107, bc108. Bc548 transistor pinout esquemas eletronicos, eletronicos.
Bc548 datasheet, bc548 pdf, bc548 data sheet, bc548 manual, bc548 pdf, bc548, datenblatt, electronics bc548, alldatasheet, free, datasheet, datasheets, data sheet. 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. Biasing a transistor to operate as an ideal switch involves understanding transistor characteristics graphs. This article focuses exclusively on biasing and if you have gaps in your knowledge, then i recommend reading the earlier pages of this multipage article. 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 left half of the circuit above should be familiar. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. The bc548 and bc549 are almost identical npn transistors. Bc547 bc548 30 80 30 200 v ces collector emitter voltage v ceo 50 emitter base voltage v ebo emitter current peak collector current dc collector current peak 5 npn silicon planar epitaxial transistors bc546 bc547 bc548 absolute maximum ratings ta 25 oc unless specified otherwise to92 smd package 2 3 1. Apr 01, 2009 my problem is i couldnt find the two transistors, npn bc548 and pnp bc559 at any of my nearby radio shacks. Choosing transistor replacements electronics notes.
The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. We will upgrade your order to express25 daysif the total price per order is over gbp 50. Substitute to bc148 transistor electronics forum circuits. It is nothing but a npn transistor the base current given by applying base emitter vo. Bc548 transistor pinout, equivalent, working as amplifier. Tr1 bias transistor, bc548 or equivalent capacitor. The transistor should present a high resistance between the collector and emitter with the base left open circuit as there are two back to back diodes. The assignment of transistor elements b,c,e to leads, i. That diode is there to loop back pulse current when the relay is switched off. Bc548 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. It can handle a collectorload current of 100 ma, and the hfe gain is 110. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34.
Make sure this fits by entering your model number model. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and. Electronics club transistor circuits functional model. Bc557 is a pnp transistor hence the collector and emitter will be closed forward biased when the base pin is held at ground and will be opened. Transistor equivalent book 2sc2238 free download as pdf file. 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. The bc548 is a general purpose epitaxial silicon npn bipolar junction transistor. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european and american electronic equipment. Data by bc546d amplifier transistors bc546, b npn silicon bc547, a, b, c bc548, a, b. I have a small circuit which controls the speed of a dc motor as per the ambient temperature. Its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0. 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. Bc547 datasheet, equivalent, cross reference search.
Mar 11, 2008 its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0. They are designed for audio amplifiers and drivers utilizing complementary or quasicomplementary circuits. The transistor is a bc548 npn transistor, very cheap and easy to find. Complementary low voltage transistor stmicroelectronics. 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. It is a good way to test a transistor and confirm it is working. The bc548 is a part of a family of npn and pnp epitaxial silicon transistors that originated with the metalcased bc108 family of transistors.
A very good components and service by electron components the products i got from electron components are best in quality it is like that it can understand our needs i cannot expect a brushless fan for rs. Absolute maximum ratings ta 25c unless otherwise noted. Bc548 bc548 npn general purpose transistor datasheet buy bc548. Unit vcbo collectorbase voltage open emitter bc546. Bc548 cross reference electronic circuits, tv schematics. I am kinda new to this circuit making stuff, and i took a introductory subject to electrical engineering. My problem is i couldnt find the two transistors, npn bc548 and pnp bc559 at any of my nearby radio shacks. Bc548 transistor input output characteristics muhammad umair. It can also be replaced with some well know transistors. I decided to use ksp2222a to replace the bc548, and mpsh10 for the bf494. Bc548 transistor replacement datasheet, cross reference, circuit and. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european.
Oct 26, 2017 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 bc548 can be replaced with similar bc transistors without the danger of burning out or failing. Bc546, ab bc547, abc bc548, abc npn general purpose transistor collector 1 to92 2 base 1 2 3 3 emitter maximum ratings t 25c unless otherwise noted a rating symbol bc546 bc547 bc548 unit collectoremitter voltage veco 65 45 30 vdc collectorbase voltage v 80 50 30 vdc cbo emitterbase voltage vebo 6 6 6 vdc collector current. 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. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation.
Bc 548 is a commonly used transistor that can be found easily. Apr 11, 2018 if you want more explanation about these concept please watch below video. The 10uf capacitor at the bottom is to stop the dc current being passed through to the base of the bc548 transistor. Complementary low voltage transistor features products are preselected in dc current gain application general purpose description these epitaxial planar transistors are mounted in the sot32 plastic package. Problem is, i cant find a bc148 transistor and im looking for a substitute. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. Theyre critical as a control source in just about every modern circuit. Dec 11, 2017 2n2222a is a npn transistor hence 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. Semiconductor transistor, diode, ic cross reference. Bc546, ab bc547, abc bc548, abc npn general purpose transistor collector 1 to92 2 base 1 2 3 3 emitter maximum ratings t 25c unless otherwise noted a rating symbol bc546 bc547 bc548 unit collectoremitter voltage veco 65 45 30 vdc collectorbase voltage v 80 50 30 vdc cbo emitterbase voltage vebo 6 6 6. In this tutorial well introduce you to the basics of the most common transistor around. It is often the first type of bipolar transistor young hobbyists encounter, and is often featured in circuit diagrams and designs published in hobby electronics magazines. You can build this circuit with two standard 5mm red leds and any general purpose low power npn transistor bc108, bc182 or bc548 for example.
Select a replacement transistor with equivalent ft. Can you guys help me find out the transistors that can. Bc548b npn general purpose transistor pack 10 bc548b low power, small signal, general purpose npn transistor. Bc548, bc548 npn general purpose transistor, buy bc548 transistor. It is required to be fully conducting thereby exhibiting a minimum voltage drop across vce. Substitute for 2n2222 electronics forum circuits, projects. Here is a simple common emitter circuit typically found in most textbooks and data books. The second transistor, the bc558 is a pnp transistor, and amplifies the signal at the collector of the bc548. Smallsignal transistor data book, 86 pages, 1984, motorola. Be the first to know about our newest products, specials and promotions. If you want more explanation about these concept please watch below video.
Buy products related to bc547 transistor products and see what customers say about bc547 transistor products on free delivery possible on eligible purchases. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. 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. A transistor amplifies current and can be used as a. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. The bc548 transistor is a semiconductor that works to switch electronic signals, and in some cases amplify them. Transistor equivalent circuit with diodes for multimeter test. Bc548 transistor pinout, equivalent, uses, features. Discrete semiconductors data sheet book, halfpage m3d186 bc546. Transistor equivalent book 2sc2238 transistor integrated circuit. A common emitter circuit uses the emitter junction as a common for the input and. 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. What is the use of transistor bc548 in water level indicator.
Bc546b datasheet, equivalent, cross reference search. Bc548 cross reference electronic circuits, tv schematics, audio. Biasing the transistor with the correct base resistance ensures that it operates within the saturation region. Bc549 datasheet, equivalent, cross reference search. Bc546 datasheet, equivalent, cross reference search. The strengths and weaknesses of the bc548 transistor are derived mainly from its design. If its just switching, then its much less important to get an exact equivalent and even something like a bc337 would probably do. Feb, 2018 thanks for a2a the bc548 transistor is used in water level indicator as a sensor. In the united states and canada, a similar transistor is named 2n3904. Suitable for afdriver stages and low power output stages complement to bc337bc338.
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