Elektronische bauelemente npn plastic encapsulated transistor 14feb2011 rev. The product status of devices described in this document may have changed since this document was published and may differ in case of multiple devices. Npn silicon rf small signal transistor, bf494 datasheet, bf494 circuit, bf494 data sheet. Here is the circuit diagram of the simplest fm transmitter using a transistor.
General purpose radio frequency transistor bf 494 q1 is used here for obtaining fm modulation. Bf494 bf495 npn medium frequency transistors, bf494 pdf download philips electronics, bf494 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. The current in a crystal radio is much less then the forward voltage will also be much less so i found the datasheet 47 years old. If it is used in an rf application, you probably cannot substitute bc547 or 2n2222, or 2n3904, or any other general purpose transistor. We use cookies to deliver the best possible web experience and assist with our advertising efforts. Im trying to update as much information as possible, even if i can not find perfect information. Bf393 high voltage transistor npn silicon features pb. Rf power ldmos transistors mrfe6vs25nr1 mrfe6vs25gnr1 note.
Discrete semiconductors data sheet book, halfpage m3d186 bf494. Find the pdf datasheet, specifications and distributor information. Hello, i was just messing with circuits and i found this one above in the image i really want to make this but i dont have a bf494 transistor so my question is. Irfa datasheet, irfa datasheets, irfa pdf, irfa circuit. Npn 7 ghz wideband transistor bfq591 limiting values in accordance with the absolute maximum system iec 604. If its in an rf circuit, then be sure the f t is at least 120mhz, and that it has a low c re. By continuing to use this site, you consent to the use of cookies. Oct 06, 2015 thanks, i dunno if the bf194 datasheet covers the 194b, but guessing dont know the language that page 3 has what i am looking for. Free device maximum ratings rating symbol value unit collector. Npn medium frequency transistor bf199 limiting values in accordance with the absolute maximum rating system iec 604. Rf power ldmos transistors high ruggedness nchannel. Electronic manufacturer, part no, datasheet, electronics description.
Product specification supersedes data of september 1994 file under discrete semiconductors. I decided to use ksp2222a to replace the bc548, and mpsh10 for the bf494. Pin connections to2702 plastic mrfe6vs25nr1 to270g2 plastic mrfe6vs25gnr1 top view gate 21drain 2012, 2019 nxp b. Bf494 pdf, bf494 description, bf494 datasheets, bf494 view. Bf200 transistor alternative electronics forum circuits. Bf494, bf494 datasheet, bf494 npn medium frequency transistor datasheet, buy bf494 transistor. Oct 05, 2010 according to the datasheet, bf200 is an rf transistor with high ft and very low junction capacitances. Bf494 datasheet, bf494 datasheets, bf494 pdf, bf494 circuit. Bf494b datasheet, equivalent, cross reference search. Bf494 bf494 npn medium frequency transistor datasheet buy bf494. These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. I want to share this experience and information with each other to create a blog that helps each other. If you dont receive the item in 25 days, just let us i30n60 new package or replacement will be issued.
Product specification supersedes data of september 1994 file under discrete semiconductors, sc04 1997 jul 08. P2n2907ad p2n2907a amplifier transistor pnp silicon features these are pbfree devices maximum ratings. Great performance or range is not guaranteed here, because this is an elementary design. Nxp semiconductors, bf494, npn medium frequency transistors. Bf494 datasheet npn frequency transistor nxp, bf494 pdf, bf494 pinout, bf494 manual, bf494 schematic, bf494 equivalent, bf494 data, bf494 circuit. Im no expert at transistor selection, but i dont see anything in the datasheet that screams out im special. If you continue without changing your cookie settings, well assume that you are happy to receive all cookies on our website. Vceo vcbo vebo ic tj tstg collectoremitter voltage collectorbase voltage emitterbase voltage collector current continuous junction temperature storage temperature range. Semiconductor components industries, llc, 2007 april, 2007 rev. When i apply 400 mhz, the transistor oscillates wildly and gets very hot. Npn medium frequency transistor bf570 data sheet status notes 1. Pnp medium frequency transistor bf450 limiting values in accordance with the absolute maximum rating system iec 604.
Transistor base numbers bfxxxx cricklewood electronics. Free packages are available maximum ratings rating symbol value unit collector. Electronic component search and free download site. Bf494 rf transistor npn 20v 30ma 350mw through hole to923 from on semiconductor. A datasheet for the 1n34a germanium diode said its forward voltage is typically 1v at 5ma which is much too high. Atmjuly 2006bf494npn rf transistorabsolute maximum ratings ta 25c unless otherwise noted datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. It is a blog created to share various information with you in more complete and detailed contents. Please consult the most recently issued document before initiating or completing a design.
Characteristics tamb 25 c unless otherwise specified. Bf494 datasheet23 pages fairchild npn rf transistor. Fairchild, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Elektronische bauelemente npn plastic encapsulated transistor. Ts is the temperature at the soldering point of the collector pin. Bf494 silicon transistor components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. Posted on march 31, 2017 september 16, 2019 by pinout. Continental device india limited data sheet page 1 of 4. Bf495 limiting values in accordance with the absolute maximum rating system iec 4. Bf494 datasheet pdf, bf494 pdf datasheet, equivalent, schematic, bf494 datasheets, bf494 wiki, transistor, cross reference, pdf download,free search site, pinout electronic component search and free download site.
Microelectronics, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Bf494 datasheet, equivalent, cross reference search. So we cannot process or ship any order untill april 14. First, i want to thank all the members on this forum, its been very helpful to me. Simplest fm transmittermodulation circuit with bf494 radio. A bf494 npn rf transistor tm july 2006 bf494 npn rf transistor to92 absolute maximum ratings ta 25c unless otherwise noted these ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Oct 24, 2015 a datasheet for the 1n34a germanium diode said its forward voltage is typically 1v at 5ma which is much too high. Nxp semiconductors product data sheet npn medium frequency transistor bf199 data sheet status notes 1. They are listing ucev i am hoping that means vce qpoint with ib on the load line, along with ic. Is it possible to replace this transistor with any other transistor if possible please name all possible replacement you know. Applications hf applications in radio and television receivers fm tuners. Microelectronics npn silicon rf small signal transistor,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Mar 31, 2017 bf494 datasheet npn frequency transistor nxp, bf494 pdf, bf494 pinout, bf494 manual, bf494 schematic, bf494 equivalent, bf494 data, bf494 circuit. Transistor equivalent electronics forum circuits, projects. Only after i tune the capacitors do i get 9 db out at 175 mhz. The philips datasheet shows the transistor from the bottom the side where the pins come out of the package.
Bf494 npn medium frequency transistor to control the impact of the covid19 outbreak, indian gov. Bf494 bf494b npn medium frequency transistorbuy online electronic components shop wholesale best lowest price india. Is the problem from the transistor or something else. Bf494 bf 495c pin configuration bf495 pin configuration 495d transistors bf494 bf495 transistor bf495 transistor bf494 bf495c text. Applications datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Bf495 npn medium frequency transistors 1997 jul 08 product specification supersedes data of september 1994 file under discrete semiconductors, sc04 philips semiconductors product specification npn medium frequency transistors bf494. You pick a transistor to suit the circuit and specification requirements and, if you are lucky, there are alternatives that explicitly say in their data sheet that they are alternatives to the part you originally chose. Bf494 datasheet, bf494 pdf, bf494 data sheet, datasheet, data sheet, pdf, continental device india limited, 0. The backside of the package is the source terminal for the transistor. Npn rf transistor, bf494 datasheet, bf494 circuit, bf494 data sheet. K datasheet pdf, k data sheet, k, k the sp can work on a desk, bookshelf, or stand.
Bf495 datasheet, equivalent, cross reference search. We request our customer to stay at home and stay safe. Bf495, bf495 datasheet, bf495 npn medium frequency transistor datasheet, buy bf495 transistor. This shopping feature will continue to load items when the enter key is pressed. The transistor im testing was made by motorola and is a know good working device in the current application circuit, in which i desoldered the transistor from. On may at b 2sb components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. If you cause interference with fm radios or with airplane communications then you will be in for big trouble. Jun 01, 2016 c547c datasheet 45 v, 100 ma npn transistor nxp, bc547c datasheet, c547c pdf, c547c pinout, c547c manual, c547c schematic, c547c equivalent, c547c data. To control the impact of the covid19 outbreak, indian gov. Philips customers using or selling these products for use in.
Bf495 npn medium frequency transistors 1997 jul 08 product specification. Bf422 high voltage transistors npn silicon features this is a pb. Pricing and availability on millions of electronic components from digikey electronics. The local electronics shop did not have the transistor bf494,so i put 2n3904. Fairchild npn rf transistor,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Bf494 on semiconductor discrete semiconductor products. Bf494 datasheet, bf494 pdf, bf494 data sheet, datasheet, data sheet, pdf.
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