Where you to open it up, you would find that the encapsulation surrounding the transistor contains silicone grease and an air space inside the metal can. Datasheet catalog for electronic components integrated. Vintage mullard semiconductors andrew wylies watercolours pages. Bd, bda, bdb, bdc pnp silicon power transistors 1 june revised september specifications are subject to change without notice. Philips described its pointcontact transistors in general terms as follows. Revision history data sheet id release date data sheet status change notice supersedes bc847bvn v. To avoid the same designation with the philipsmullardvalvo transistors oc45 and oc44 these transistors. Does anybody have any suggestions where i might get hold of some 2. Npn transistor af amplifier and speed switching, c2785 pdf download nec renesas technology, c2785 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. There is no listed equivalent to the af118 and where replacement is needed for an old transistor tv, it may be necessary to rejig the circuit to take a suitably rated silicon device. Or if you know the transistor you need then simply type the first 4 or digits in the above search box. Grover in order to use a pic microcontroller, a flipflop, a photodetector, or practically any electronic device, you need to consult a datasheet. This site contains my collection of vintage transistors and diodes, most of them included with their original package or sleeves.
Buy online discounted oc series transistors from siliconark. These can occasionally be found on ebay, usually advertised as germanium devices. Basic semiconductor physics, diodes, the nonlinear diode model, load line analysis, large signal diode models, offset diode model, transistors, large signal bjt model, load line analysis, small signal model and transistor amplification. It is addressed to amateur circuit designer with little or no previous knowledge on semiconductors.
Oc45 transistors 30 in stock to buy, photo, pdf datasheet. Oc71 datasheet, cross reference, circuit and application notes in pdf format. The first germanium transistors that i encountered as a kid were the glassencapsulated ocxx types oc44, oc45, oc71, oc81d, oc81, etc. The ones that are the most significant include the gain, dissipation and the maximum ratings. For electronic circuit design, selecting the right transistor will need several of the transistor parameters to match the requirements for the. Oc45 datasheet, equivalent, cross reference search. The case drawings are shown at the bottom of the page. Also in 1956, mullard announced the oc44 and oc45 transistors, the latter seems to be described all over the web as the first rf transistor, although i think this only applies to europe. Consider the contents of this book as the first mile of a long journey into transistor. Discrete semiconductors selection guide 2010 diodes, transistors, esd and signal conditioning devices excellence in portfolio and performance.
In reality these two devices would be more accurately termed if transistors. Same qualities in treble boosters and other preamps. In practice, the af125 can be used to replace af114115116. C2785 datasheet, c2785 pdf, c2785 data sheet, datasheet, data sheet, pdf. I do not know whether the cause is the same as the af117type transistors, or whether the same cure will work. For the pointcontact transistor a small slab of ntype germanium consisting of a single crystal and having a volume resistivity of 5.
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. Bc547a transistor npn 45v 100ma to92 fairchild semiconductor 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. How to read a datash eet prepared for the wims outreach program 5602, d. Toshiba transistor silicon pnp epitaxial type pct process 2sc1959 audio frequency low power amplifier applications driver stage amplifier applications switching applications excellent hfe linearity. The cause of death or fault mechanism is rather interesting. The operating characteristics of a transistor are all found on its data sheet. The first telefunken power transistor was the od604 introduced late in 1955. C utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values such as maximum ratings, operating condition ranges, or. Oc45 transistor germanium oc45 silver this is a demo store. Ss9015 pnp epitaxial silicon transistor filipeflop. Transistor specifications explained electronics notes. Im trying to update as much information as possible, even if i can not find perfect information.
They are intended for linear amplifiers and inductive switching applications. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Free packages are available maximum ratings rating symbol value unit collector. Nexperia bc847bvn npnpnp general purpose transistor 14. Silicon npn transistors stmicroelectronics preferred salestypes npn transistor description the 2n3439 and 2n3440 are silicon epitaxial planar npn transistors in jedec to39 metal case designed for use in consumer and industrial lineoperated applications. Pdf 200kcl2 oc22512 125ma oc78d 350kc121 300ma oc81d 100mw foroc81 r08t01 oc9 oc44 oc170 oc141 oc81 oc140 oc75 oc45 oc42.
Also in 1956, mullard announced the oc44 and oc45 transistors, the latter seems. The datasheet is a kind of manual for semiconductor, integrated circuits. Oc45 pnp germanium transistor in a classic so2 glass test tube. Toshiba transistor silicon pnp epitaxial type pct process. Product data sheets may predate even pilot quantities.
Kim lewis is a professional programmer and web developer. Contains pinouts for connectors and information about how to build cables etc. Dta143eca pnp 100ma 50v digital transistors bias resistor builtin transistors datasheet loutline parameter value sot23 vcc50v icmax. Jul 05, 2017 c2073 datasheet vceo 150v, npn power transistor mospec, 2sc2073 datasheet, c2073 pdf, c2073 pinout, c2073 data, c2073 crcuit, output, c2073 schematic. The latter types listed were often further encapulated in an aluminium can for improved heat dissipation the oc81d was often used as a driver ahead of an interstage phasesplitting transformer, and a pair.
Toshiba power transistor semiconductor data book 1983 toshiba corporation 1983 acrobat 7 pdf 52. This datasheet contains the design specifications for. Dtc114y series npn 100ma 50v digital transistor bias resistor builtin transistor datasheet loutline parameter value sot723 sot416fl vcc 50v icmax. It is a semiconductor device and it comes in two general types. C5884 datasheet, c5884 pdf, c5884 data sheet, c5884 manual, c5884 pdf, c5884, datenblatt, electronics c5884, alldatasheet, free, datasheet, datasheets, data sheet. The data sheet for pnp transistors will have characteristics similar to that of npn ones. High power npn silicon transistor stmicroelectronics preferred salestypes description the 2n3771, 2n3772 are silicon epitaxialbase npn transistors mounted in jedec jedec to3 metal case. Any orders placed through this store will not be honored or fulfilled.
Emitter voltage bc372 bc373 vceo 100 80 vdc collector. 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. One of the larger surfaces of this germanium slab is soldered on to a metal carrier and thus forms the base. Need to know if the part can handle the frequency or give you the gain you need, look at the data sheet. A description of the sites history is available on the web 14. Also in the search is the variable capacitor, which is 500pf, about 2. She has been a technical writer for more than 10 years and has written articles for businesses and the federal government. C2073 datasheet vceo 150v, npn power transistor mospec. Transistor semiconductor history texas instruments rca bell laboratories western electric general transistor fairchild tungsol sylvania mullard philips stc newmarket general electric philco gec motorola shockley faraday willoughby smith william adams richard day charles fritts braun schuster henry round jagadis bose greenleaf pickard alan wilson walter schottky boris davydov nevill mott. Toshiba power transistor semiconductor data book 1983. The column marked case is the outline of the transistor case. High voltage 75v video amplifier for transistor tvs.
Cases gec mazda stc aei hivac newmarket texas transistors. The format of this data sheet has been redesigned to comply with the identity guidelines of nexperia. Tube oc 45 or rohre oc45 id33673, transistor, wires and rfifstage shown. Siemens, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. C380 datasheet, c380 pdf, c380 data sheet, datasheet, data sheet, pdf.
Tube oc 44 or rohre oc44 id33607, transistor, wires and frequency converter shown. It is a blog created to share various information with you in more complete and detailed contents. May 09, 2016 9014c datasheet npn silicon transistor utc, utc9014 datasheet, 9014c pdf, 9014c pinout, 9014c equivalent, 9014c schematic, 9014c transistor, 9014c manual. The to7 encapsulation has a 4th lead that is connected to the metal can, and this is usually connected to ground so that the transistor inside is screened. Ac122 datasheet germanium small signal transistors. Af115, af116 these are not encapsulated black glass, but already philipsmullard to1 boxed.
Sst3 lfeatures linner circuit 1 builtin biasing resistors, r1 r2 4. By way of comparison, the well known oc45 transistor designed for if duty. The transistors used in are oc45 and oc71s ive got hold of the 71s, but am having real trouble trying to find a source for the 45s. B utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values such as maximum ratings, operating condition ranges, or other. A datasheet is a document, printed or electronic that provides details about a product, like a computer, computer component, or software program. Datasheet catalog for electronic components integrated circuit, transistor, diode, triac, and other semiconductors page 30. Full text of mullard data book 196566 internet archive. Bipolar junction transistors bjt general configuration and definitions the transistor is the main building block element of electronics.
Tip3055, 2955 complementary power transistors page 1 310505 v1. Bc549c, bc550c low noise transistors npn silicon features these are pb. Oc169 datasheet, cross reference, circuit and application notes in pdf format. Uk vintage radio repair and restoration transistor. Oc75 datasheet, equivalent, cross reference search. Mullard soon switched to using the bc prefix for silicon, and ac for germanium, eliminating the confusion. Hunter l 1956 handbook of semiconductor electronics 1ed. Free devices maximum ratings rating symbol value unit collector. Datasheets details on all released products and product families, available for download as pdf. This only causes a problem if the transistor is mounted on a heatsink plate that is connected to the 0v rail of the set. Please consult the most recently issued data sheet before initiating or completing a design. Understanding transistor datasheets arduino stack exchange. Making a transistor radio parts list of course, if you had a time machine, you could visit the peter vis hardware mercantile store, and i will pack all of these items for you in a nice brown paper bag.
Diodes and transistors pdf 28p this note covers the following topics. Technical information on transistors may be found on their packages, on the data sheets from the manufacturer, and in some electronics textbooks or handbooks. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. Mullards first silicon transistors were the oc201 to oc207, pnp alloy types using the standard so2 metaloverglass construction such as the oc201 shown. Oc45 less high frequencies than previous ones, but very little leakage, therefore reliable and easy to bias, but lower gain.
Uk vintage radio repair and restoration transistor faults. Complementary silicon power darlington transistor st microelectronics 6. The following diagram and paragraph are taken from the book electronic classics written by andy emmerson. Pnp germanium rf transistor, af106 datasheet, af106 circuit, af106 data sheet. Anyway, the problem with these transistors is not the germanium itself rather, its the package the transistors are mounted in. I plan on using a bd9 transistor, although i havent purchased anything yet, so can change to anything really. The devices are produced in the late fifties and early sixties except the mosfets from sony they where made in 1975. Download ic database equivalent guide 100 thousand. Transistor silicon npn epitaxial type pct process high frequency amplifier applications. Buy online discounted oc series transistors from silicon. Sst3904 npn general purpose transistor datasheet loutline parameter value sot23 vceo 40v ic 200ma sst3 lfeatures linner circuit 1bvceo40vic1ma 2complements the sst3906 lapplication audio frequency small signal amplifier lpackaging specifications part no. The datasheet includes information that can help in making a buying decision about a product by providing technical specifications about the product. Jun 15, 2015 oc45 less high frequencies than previous ones, but very little leakage, therefore reliable and easy to bias, but lower gain. Pdf oc169 350iu oc171 oc171 oc44 oc169 oc45 transistor oc44 2s60a the transistor manual 2sa ge transistor manual.
High power npn silicon transistor stmicroelectronics. Bc372, bc373 high voltage darlington transistors npn silicon features pb. Transistor manufacturers issue specification sheets for their transistors which are typically found on the internet, although years ago engineers used to study data books to find out the information. Transistor semiconductor history texas instruments rca bell laboratories. This is where you will find all the transistors specifically in the oc series i. Reference manual of transistor circuits descriptions of more than 60. The story of the texas instruments first commercial silicon transistor has. Others, shortform transistor datasheet guide, scan, pdf. Semiconductor data book, 11th edition presents tables for ratings and characteristics of transistors and multiple transistors. Oc44 datasheet, oc44 pdf, oc44 data sheet, oc44 manual, oc44 pdf, oc44, datenblatt, electronics oc44, alldatasheet, free, datasheet, datasheets, data sheet, datas. Oc45 datasheet, cross reference, circuit and application notes in pdf format. Germanium transistors the following table lists the parameters for germanium transistors. This is the document that the manufacturer provides telling you.