Bc107 transistor equivalent book

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. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. The bc549c is an npn transistor belonging to a group of generalpurpose npn semiconductors consisting of bc547, bc548, and bc549. A bc109c for example is a silicon low power audio transistor with a high gain. Aug 27, 2010 one part that you should add to the circuit is a 1n400x series 1n40011n4007 rectifier across the relay coil.

Bc107 datasheet38 pages philips npn general purpose. Bc107 cross reference electronic circuits, tv schematics. May 15, 2017 a bc107 was an old ordinary little transistor in a metal case. Bc107 bc107 npn general purpose transistor datasheet buy. Bc107bc108 series low power bipolar transistors page 2 200406 v1. 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. One of my interests is restoring vintage transistor radios. The assignment of transistor elements b,c,e to leads, i. Initially in metal to18 packages, the range expanded over time to include other package. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television reveivers. 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.

Unit vcbo collectorbase voltage open emitter bc107. The way that a 2n2222, bc107, bc108 and bc109 transistor symbol maps to the physical device is shown in the diagram below. C transistor is used as a audio frequency amplifier the numerals 107 indicate the type npnpnp a. Using the numbering scheme it can be seen that a transistor with the part number bc107 is a silicon low power audio transistor and a bby10 is silicon variable capacitance diode for industrial or commercial use. 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. Thermal characteristicsnote datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. It is likely to be an excellent substitute for a bc107 in most cases. Comset, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar.

Bc107, bc107 npn general purpose transistor, buy bc107 transistor. What are the specifications of bc107 or bc108 transistors. Low power bipolar transistors bc107 bc108 series page 240412 v1. Multicomp bc107 transistor, bipolar, npn, 45v, 100ma, to183 specifications for this item brand name. I have a small circuit which controls the speed of a dc motor as per the ambient temperature.

I got some in a local shop when i asked for bc238cs, which were used in the kosmos sets for children. Edward herold, director of the radio tube laboratory at the rca princeton laboratories, visited natlab and the electron tubes division laboratory in 1953 and noted in his report. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics books articles from europe, australia and many other countries from the 1960s. Multicomp bc107 transistor, bipolar, npn, 45v, 100ma, to. Bc107 datasheet88 pages philips npn general purpose. Solved in finding an equivalent transistor, what are the. Sot54 spt, e1 bc337a smallsignal transistors bc368 bc368. Description collectoremitter voltage 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 symbol vceo vcbo vebo a v unit. Jul 30, 2012 the ksp2222 is an equivalent of the 2n2222 but is packaged in a plastic package known as a to92 package. The bc109 package was to18 sot18 metal canister, whilst the modern bc549 package is a to92 sot54 plastic material.

Semiconductor devices are coded as b stands for silicon transistor c for audio frequency range 107 simple home experiment use first character material a. Low noise general purpose audio amplifiers, bc107 datasheet, bc107 circuit, bc107 data sheet. Bc107 bc108 series low power bipolar transistors page 2 200406 v1. Bc108 datasheet, equivalent, cross reference search. Bc107 manufacturers web site futurlec part number bc107 department transistors category general bc series rohs compliant package type to18 technical data. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. 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. Bc107 is the thermal compensation as well quisent current stabiliser for out put transistor 2n3055s say around 50ma. The ksp2222 is an equivalent of the 2n2222 but is packaged in a plastic package known as a to92 package. Bc107 equivalent electronics forum circuits, projects and. They were created by philips and mullard in 1963 and introduced in april 1966. Jan 19, 2014 bc107 bc108 bc109 transistor data sheet 1. Thermal characteristicsnote datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits. This three transistor radio circuit utilises bc547b silicon transistors.

One part that you should add to the circuit is a 1n400x series 1n40011n4007 rectifier across the relay coil. The name bc107 has to be decoded as below b silicon transistor. A bc107 was an old ordinary little transistor in a metal case. Bc107 datasheet, equivalent, cross reference search. The corresponding equivalent circuit is provided infigure 5. 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. Without it, induced voltages from the coil when the transistor turns off will eventually destroy the transistor. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and equivalents to each other. Transistor transistors for beginners in electronics. Bc107 equivalent electronics forum circuits, projects. Philips described its pointcontact transistors in general terms as follows. The most noticeable difference is in the packaging and pin configuration. Transistor codes surface mount, pnp, npn, choosing. Bc107 bc107 npn general purpose transistor futurlec.

Home components hardware boards books kits futurlec the electronic components and semiconductor superstore. One of the larger surfaces of this germanium slab is soldered on to a metal carrier and thus. I have used 2n3904 little transistors to replace bc547 in circuits for many years. The pointcontact transistors have 2 mil point spacing and are close copies of the btl type a. I also think bc106 doesnt exist, and its probably a bc107, which was a standard small signal transistor back in the seventies. May 11, 2018 semiconductor devices are coded as b stands for silicon transistor c for audio frequency range 107 simple home experiment use first character material a. Im troubleshooting a preamp from a 70s fender rhodes electric piano. R e c j,be collector base emitter r o r b r c c j,bc. Matching transistor pairs are available with 5% and 10% matching on hfe or hfe. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. 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. Bc107 cross reference electronic circuits, tv schematics, audio. For the pointcontact transistor a small slab of ntype germanium consisting of a single crystal and having a volume resistivity of 5.

General purpose small signal npn bipolar transistor features silicon npn hermetically sealed to18 screening options available vcbo collector base continuous voltage bc017 bc108, bc109 vceo collector emitter continuous voltage with zero base current bc107 bc108, bc109. The output resistance, r o, was added to represent the early effect, which is included in the bjt model by specifying vaf and var. Bc109limiting valuesin accordance with the absolute maximum rating system iec 4. The gain of the amplifier is governed by emitter resistance of bc212 23k and 20 to 100ohms resistance. I saw it back in 1979 and then it was based on the bc107 transistor. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. The generalpurpose range of transistors is a good substitute for basic noncritical audio applications, as these transistors are similar and. Its max vceo is 45v, its max current is only 100ma and its hfe is from 125 to 500 at 2ma. Bc109 npn general purpose transistors 1997 sep 03 product specification supersedes. These transistors are the direct modern equivalent replacements to the earlier bc107, bc108, and bc109. Bc107 bc108 low noise general purpose audio amplifiers description the bc107 and bc108 are silicon planar epitaxial npn transistors in to18 metal case. Multicomp bc107 transistor, bipolar, npn, 45v, 100ma, to183.

The complete specifications would be present in its datasheet. That is good practice when controlling a dc relay with any semiconductor. This is one of those ageold circuits that most people will remember seeing in books and magazines and remember making it. Initially in metal to18 packages, the range expanded. A bc547 has the same chip but in a modern epoxy case and its allowed thermal power is double the bc107. Transistors have three pins called emitter e, baseb and collectorc. The bc107, bc108 and bc109 are generalpurpose low power silicon npn bipolar junction transistors found very often in equipment and electronics books articles from. Bc107 bc108bc109 january 1989 low noise general purpose audio amplifiers the bc107, bc108 and bc109 are silicon planar epitaxial npn transistors in to18 metalcase. Bc107 bc108 bc109 mechanical data dimensions in mm inches general purpose small signal npn bipolar transistor 5. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television receivers.