The bigger the package is, the more power the transistor can handle. A bc108 transistor is an npn negativepositivenegative bipolar transistor. The complete specifications would be present in its datasheet. Understanding transistor replacement, substitution and information is very important for a electronic repairer. It is notably often the first type of bipolar transistor hobbyists encounter and is often featured in designs in hobby electronics magazines where. This sams transistor substitution handbook is a very comprehensive substitution handbook.
Complementary pnp transistor the complementary pnptransistor to the bc108 is the bc178. Buy online bc108 silicon npn transistor by rs components,download st microelectronics bc108 datasheet. Low power bipolar transistors bc107 bc108 series page 240412 v1. A click on a product type takes you to the corresponding product information page on the nxp website.
Bc108 low noise general purpose audio amplifiers description the bc107 and bc108 are silicon planar epitaxial npn transistors in to18 metal case. The bc108 is a npn transistor in to18 metal package. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics booksarticles from europe, australia and many other countries from the 1960s. Npn, 45v, 800 ma, beta250, ft100 mhz, to92 case, 625 mw dissipation. Bc183 vs bc108 transistors fender stratocaster guitar forum. A site for the novice or established collectorrestorer of vintage radio sets and electronics. Continental device india limited data sheet page 2 of 4. Bc107 bc108bc109 low noise general purpose audio amplifiers description the bc107, bc108 and bc109 are silicon planar epitaxial npn transistors in to18 metal case. General purpose transistors technical data and comparison tables. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. These are the names of the packages and not the transistor part numbers.
This site uses cookies to deliver our services and provide a basic level of website functionality. This is why i want to share this chart i have found online which shows you. Cdil bc108 cdil bc108 npn gp transistor small signal transistor with silicon planar construction, suitable for low noise general purpose audio. Dec 20, 2011 mono preamp mic based bc108 transistor amplifier circuit december 20, 2011 the microphone preamp based transistor described here is powered by 9 v and less than 1 ma current consumption, it will allows you to use a small 9 v rectangular conventional battery for several hours. These transistors are the direct modern equivalent replacements to the earlier bc107, bc108, and bc109. Is there anything available to see if a particular transistor can be replaced with a different one. Transistor substitution desoldering and replacing a transistor takes very little time. The central semiconductor bc107, bc108,bc109 series types are small signal npn silicontransistors, manufactured by the epitaxial planarprocess, designed for general purpose amplifierapplications.
Knowing how to substitute an alternate transistor type can speed up your. They were created by philips and mullard in 1963 and introduced in april 1966. Apr 17, 2014 general transistor substitution chart. The transistor base sits between the collector and the emitter. At the time i bought every electronic magazine i could get hold of that contained constructional projects for guitar pedals. In the two main types of transistors, the base is made of either positive or negative material. The original transistor might need special ordering, or be discontinued and unavailable.
Bc108 npn transistor complementary pnp, replacement. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. You can alter the values to adjust the gain but do not exceed more than 150 as this can cause the circuit to become unstable. A lot of people have pointed out, especially when i first proposed the. Mmbv2101lt1 mmbv2103lt1 mmbv2105lt1 mmbv2107lt1 mmbv2108lt1 mmbv2109lt1 mv2101 mv2104 mv2105 mv2108 2n3819 replacement transistor equivalent book 2n5401 bc237 j305 replacement transistor equivalent ct 2n5551 2n5551 sot23 bf245 replacement 2n3819 equivalent transistor mps2907 replacement bc108 replacement. Bc107 bc108 bc109 low noise general purpose audio amplifiers description the bc107, bc108 and bc109 are silicon planar epitaxial npn transistors in to18 metal case. C transistor is used as a audio frequency amplifier the numerals 107 indicate the type npnpnp a. It depends on exactly what the function of the transistor is, but heaps of transistors will substitute for it in a great many situations. As prathamesh satardekar has said, 2n2222 is as good as any. Inexpensive plastic packaged pn 2222a, 2n3904, 2n4401, or 2sc945 should all be acceptable substitutes. Mono preamp mic based bc108 transistor, powered by 9 v and less than 1 ma current consumption. Transistor cross reference replacement and guide is very important for every engineers and technicians because the data that you found in this guide can help you to find the exact replacement for the components that you are looking for such as transistor, fet, ic, diode, zener diode and etc. In sweden,the bc108 was the one you could easily get. Bc107 datasheet, equivalent, cross reference search.
It is likely to be an excellent substitute for a bc107 in most cases. 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. 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, want to know when information about a particular component or find a replacement the operation is quite simple and is separated by categories such as. Bc108 npn transistor to18 case the bc108 is a npn transistor in to18 metal package. An npn bc108 transistor has a positive material base, and the collector and emitter are negative materials. Problem is, i cant find a bc148 transistor and im looking for a substitute. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european and american electronic equipment. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. Transistors can be packaged in many different packages, some examples are shown below.
Smallsignal transistors replacement list bc81816 bc81716 bc81825 bc81725 bc81840 bc81740 bc818w bc817w bc81816w bc81716w bc81825w bc81725w bc81840w bc81740w bc848 bc847 bc848a bc847a bc848b bc847b bc848c bc847c bc848at bc847at bc848bt bc847bt bc848ct bc847ct bc848w bc847w bc848aw bc847aw bc848bw bc847bw bc848cw bc847cw. A selection of the most commonly used transistors and more. Mar, 2018 as prathamesh satardekar has said, 2n2222 is as good as any. Understanding transistor replacement, substitution 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. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television receivers. You can find transistor specs in data sheets available online. The bc108 is a low power general purpose npn transistor in a metal package. More time is spent figuring out which one to replace and, sometimes, what to replace it with. Suitable for applications requiring low noise and good hfe linearity, eg. Free devices maximum ratings rating symbol value unit collector. The bc108 transistor might have a current gain anywhere between 110and 800. Mono preamp mic based bc108 transistor amplifier circuit design. Cdil bc108 cdil bc108 npn gp transistor small signal transistor with silicon planar construction, suitable for low noise general purpose audio javascript is currently disabled in your browser, please turn it on to avoid loss of functionality. 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. Bc107bc108 series low power bipolar transistors page 3 200406 v1. Bc108 datasheet, equivalent, cross reference search. The transistors recommended for the project were 2n3565,mps6514 or bc108.
Bc107 bc108 bc109 low power bipolar transistors page 1 300505 v1. Finding transistor replacement can take you hours if you dont know the right method to do it. Valve tube and transistor with informationprojects and technical help. Electronic repair transistor cross reference replacement. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television reveivers. Apr 08, 2020 the bc108 transistor is an npn transistor. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. Mono preamp mic based bc108 transistor amplifier circuit. Bc108b datasheet12 pages central npn silicon transistor. Bc107bc108 series low power bipolar transistors page 2 200406 v1. Suitable for use in a wide range of applications and can handle continuous dc currents of up to 120ma.
We arrange our transistor stock, not by their type number, but by their specifications this makes it easy to go right to the drawers holding good candidates for substitution. Master transistoric substitution handbook tab books. Discrete semiconductors selection guide 2010 products for general applications bene. 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.
The microphone preamp based bc108 transistor for a dynamic microphone with 50 and 200 ohms impedance. I am kinda new to this circuit making stuff, and i took a introductory subject to electrical engineering. Bc107abc bc108abc bc109abc to18 metal can package to18 metal can package g 1 2 3 h j l f a d b e c k dim min max a l l d i m i n s i o n s i n m m. The most noticeable difference is in the packaging and pin configuration. Is there any webbased or stand alone program to do such service for transistors and ics. Now all i need to do is find a good transistor specification handbook, and no doubt, it will likely be a sams book, also. Transistor transistors for beginners in electronics. Substitute to bc148 transistor electronics forum circuits. What are the specifications of bc107 or bc108 transistors.
Bc108bc109 january 1989 low noise general purpose audio amplifiers the bc107, bc108 and bc109 are silicon planar epitaxial npn transistors in to18 metalcase. Can you guys help me find out the transistors that can. The name bc107 has to be decoded as below b silicon transistor. Bc369 amplifier transistors voltage and current are negative for pnp transistors features these are pb. Audio transistor amplifier circuit bricks the easy way to. Initially in metal to18 packages, the range expanded over time to include other package. For the radio constructor we have an archive of vintage circuits schematics to build. The bc109 package was to18 sot18 metal canister, whilst the modern bc549 package is a to92 sot54 plastic material. Audio transistor amplifier circuit bricks the easy way.
The complementary pnp types are respectively thebc177, bc178. The way that a 2n2222, bc107, bc108 and bc109 transistor symbol maps to the physical device is shown in the diagram below. Open library is an initiative of the internet archive, a 501c3 nonprofit, building a digital library of internet sites and other cultural artifacts in digital form. Aug 27, 2010 the bc108 is a low power general purpose npn transistor in a metal package. Bc108 bc109 january 1989 low noise general purpose audio amplifiers the bc107, bc108 and bc109 are silicon planar epitaxial npn transistors in to18 metalcase. The bc141 is also a general purpose npn transistor in a metal package with a higher voltage rating probably unnecessary in your application and higher current rating. The gain of the bc108awill be in the range from 110to 220, bc108branges from 200to 450, bc108cranges from 420to 800. I have seen fuzzes with many different silicon transistors but none with bc183s. Continental device india limited datasheet catalog. A lot of people have pointed out, especially when i first proposed the idea of this blog on forums, that the idea of listing pedals by the transistors they used is redundant. Download ic database equivalent guide 100 thousand. Bc108abc bc109abc to18 metal can package low noise general purpose audio amplifiers absolute maximum ratings.
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