Bc547 datasheet, equivalent, cross reference search. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. Cross reference universal transistor reference page 1. Description symbol vceo collectoremitter voltage vces 50 collectorbase voltage emitterbase voltage collector current continuous power dissipation 25c derate above 25c power dissipation 25c derate above 25c operating and storage junction temperature range thermal resistance junction to case rth jc 175 cw vcbo vebo bc177 45 unit. Micro electronics datasheet for bc1079, bc1679, bc2379,bc3179 pdf. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics books articles from.
Bc177 bc178bc179 low noise general purpose audio amplifiers description the bc177, bc178 and bc179 are silicon planar epitaxial pnp transistors in to18 metal case. Bc178b datasheet, equivalent, cross reference search. This book explains the math around the equivalent circuits, which is incredibly helpful to the reader, if the reader. Semiconductor transistor, diode, ic cross reference.
Transistors for fast and ultrafast switches in to18. This positive voltage to the collector allows current to flow across from the collector to emitter, given that there is a sufficient base current to turn the transistor on. If its just switching, then its much less important to get an exact equivalent and even something like a bc337 would probably do. Following the invention of the transistor, the first commercial transistor radio was released in 1954.
The other transistor functions as pre amplifiers for the driver stage. Multiple choice questions and answers by sasmita january 9, 2020. It is particularly designed for audio amplifiers and switching application up to 1a. Its an npn transistor rated for 500ma, 50v and with a hfe gain between 20 and 300, typically 80 at 0. Bc177, bc177 datasheet, bc177 pnp small signal transistor datasheet, buy bc177 transistor. Bc109 cross reference electronic circuits, tv schematics. The transistor is a semiconductor device that can amplify signals and switch power. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable.
Transistor codes surface mount, pnp, npn, choosing transistor. It must be realised by all users of transistors, that it is impossible to guarantee absolute equivalents. I am kinda new to this circuit making stuff, and i took a introductory subject to electrical engineering. Second book of transistor equivalents american radio history. The transistors 2n 3055 serves the function of driving the speaker. Semiconductor cross reference book paperback july, 1996.
The massmarket success of the smaller and cheaper sony tr63, released in 1957, led to the transistor radio becoming the most popular electronic. Bc177 pnp transistor complementary npn, replacement. Semiconductors data sheet m3d125 bc177 pnp general purpose transistor 1997 jun 04. Buy bc multicomp bipolar bjt single transistor, general purpose, pnp, 45. The massmarket success of the smaller and cheaper sony tr. Transistors are in stock with sameday shipping at mouser electronics from industry leading manufacturers. Small signal transistors industry standard st nearest st. 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.
Nte is a company that specializes in cross referenced parts. Bcbc series low power bipolar transistors page 3 v1. In addition to reading the questions and answers on my site, i would suggest you to check the following, on amazon, as well. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. There are three main series of transistor codes used in the uk. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers.
International transistor equivalents guide american radio history. Jul 18, 2019 bcb datasheet, equivalent, cross reference search. Bcw60a bcw60b, bcw60c, bcw60d equivalent type bcw61a bcw61b, bcw61c, bcw61d equivalent type bcw81 bc847c bcx20 bcx19. The gain of the bc177a will be in the range from 125 to 260, bc177b ranges from 240 to 500. Substitute to bc148 transistor electronics forum circuits.
The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics booksarticles from. Without it, induced voltages from the coil when the transistor turns off will eventually destroy the transistor. The bc548 is an example of the modern lowcost member of this family, still in a throughhole package, while the bc848 is the surfacemount version. Bc177 cross reference electronic circuits, tv schematics. Epitaxial pnp semiconductors encourages customers to verify that datasheets are current before placing order.
Lownoise finding equivalent transistors bc178 and 2n2646. The smd versions of the bc177 are available as the 2sa812 sot23. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Full text of siemens transistors data book 198081 see other formats. Smallsignal transistors replacement list jc558 jc558b jc559a jc559 equivalent type jc559b jc558b jc559c jc558b equivalent type. One of my interests is restoring vintage transistor radios. This data sheet and its contents the information belong to the members of the premier farnell group of companies the group or are licensed to it. Low power bipolar transistors bc177 bc177b series page 080512 v1. Can you guys help me find out the transistors that can.
That is good practice when controlling a dc relay with any semiconductor. Bc107 bc108 low noise general purpose audio amplifiers description the bc107 and bc108 are silicon planar epitaxial npn transistors in to18 metal case. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. Pnp general purpose transistor bc177 limiting values in accordance with the absolute maximum rating system iec 4. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. Semiconductor devices are coded as b stands for silicon transistor c for audio frequency range 107 simple home experiment use first character material a.
With out knowing what and ware your are using it, you should choose a similar part. Bc109 cross reference electronic circuits, tv schematics, audio. Transistor, npn, to18 bcb transistor, npn, to18 bcc important notice. A transistor is a semiconductor device used to amplify and switch electronic. I havent been able to find an equivalent for the 2n2646. Bc177b datasheet, equivalent, cross reference search. The complementary npn transistor to the bc177 is the bc107. Problem is, i cant find a bc148 transistor and im looking for a substitute. They are suitable for use in driver stages, low noise input stages and signal processing. Transistor equivalent or substitute used for power amplifier.
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. A transistor radio is a small portable radio receiver that uses transistor based circuitry. Bc107 datasheet, equivalent, cross reference search. The other transistor functions as pre amplifiers for the. Bc177 datasheet, equivalent, cross reference search. Bc177 pnp transistor bc178bc179 bc177 npn transistor datasheet bc177 bc179 transistor datasheet npn bc178 transistor bc177 bc107. A pnp transistor receives positive voltage at the emitter terminal. Transistor codes surface mount, pnp, npn, choosing. Bc177, to18, 100ma, 45, 125, 300mw, audio, low power, bc477. Bc177, bc177 pnp small signal transistor, buy bc177 transistor. General purpose transistor description the bc14116 is a silicon planar epitaxial npn transistor in jedec to39 metal case. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Bc547 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.
Matching transistor pairs are available with 5% and 10% matching on hfe or hfe. Bc547 npn general purpose transistors 1999 apr 15 product specification. Discrete semiconductors data sheet m3d125 bc177 pnp general purpose transistor 1997 jun 04 product specification supersedes data of 1997 may 01 file under discrete semiconductors, sc04 philips semiconductors product specification pnp general purpose transistor bc177 features pinning low current max. Bc177 transistor pdf bc transistor datasheet pdf, bc equivalent. This data sheet and its contents the information belong to the members of. Smallsignal transistors replacement list bc86816 bc868, bc86825 equivalent type bc876 bc878 bc880 bc878 equivalent type bc877 bc879 bcf29 bc857 bcf30 bc857b bcf33 bc847b bcf81 bc847c bcp5110 bcp5310 bcp5210 bcp5310 bcp52 bcp53 bcp5410 bcp5510 bcp6810 bcp68, bcp6825 bcp6816 bcp68, bcp6825. Unit vcbo collectorbase voltage open emitter 50 v vceo collectoremitter voltage open base 45 v.
Mouser is an authorized distributor for many transistor manufacturers including diodes inc. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Suitable for applications requiring low noise and good hfe linearity, eg. Bc547 is a npn transistor hence the collector and emitter will be left open reverse biased when. Of course, after 40 plus years of life, most electrolytic capacitors are suspect and the carboncomposition resistors have drifted high and sometimes become very noisy. I have a small circuit which controls the speed of a dc motor as per the ambient temperature. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television reveivers. International transistor equivalents guide bernard babani. Multiple choice questions and answers on transistors.
They are suitable for use in driver audio stages, low noise input audio stages and as low power, high gain general purpose transistors. I want to build this circuit, but i dont have the proper transistors. The most noticeable difference is in the packaging and pin configuration. The capacitor c1 controls low frequencies and capacitor c2 controls high frequencies. Industry standard st nearest st replacement industry standard st nearest st replacement. Bc177ab discontinued bc237 replaced by bc547b bc237b replaced by bc547b. Discrete semiconductors data sheet book, halfpage m3d186 bc546. Can general purpose transistors like 2n3904, 2n4401, bc547, 2n2222, etc. 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. Retrieved datawheet august philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. Bc177bc177b series low power bipolar transistors page 2 210406 v1. Bc177 pnp transistor transistor bc 177 datasheet transistor bc177 bc177 transistor bc178bc179 bc177 npn transistor datasheet bc178b.
The bc177 transistor might have a current gain anywhere between 125 and 500. A transistor radio is a small portable radio receiver that uses transistorbased circuitry. I did find a page that appears to let you enter in the specs of the transistor and it will list equivalents, but i am not well versed in transistors to understand how to use the crossreference calculator which is available here. Bc177 bc177b low noise general purpose audio amplifiers description the bc177 and bc177b are silicon planar epitaxial pnp transistors in to18 metal case.