Maximum power, called p d, is the overall power a transistor can dissipate, through heat, without burning up. One of the best sites through which one can buy transistors that i came across is avrutti electronics. Complementary low voltage transistor features products are preselected in dc current gain application general purpose description these epitaxial planar transistors are mounted in the sot32 plastic package. This page contains list of freely available e books, online textbooks and. It is necessary to ensure that the replacement transistor will be able to operate at the relevant frequencies, so a similar or slightly higher ft is advisable.
It will be awhile before i will have all of the components to build the target project so i would like to know how to test the 2n3055 transistors. Semiconductor transistor, diode, ic cross reference. It has many other components like basic componentsdiodes. I also found a note saying that the acoustic part number 480037 was an rca 2n3442 and was used in many models such as 450, 470, etc. Because the 2n3055 is a bipolar junction transistor, its three terminals are called the base, the collector and the emitter. So to be clear for jeff, the 2n3055 is conventional npn transistor which works like any other npn transistor. The 2n3055 transistor, like all transistors, is essentially an electronic switch. Are there any online tools that i could use for finding. The 2n3055h is a silicon power base transistor for high power audio, seriespass power supplies, diskhead positioners and other linear application.
They are intended for linear amplifiers and inductive switching applications. Select a replacement transistor with equivalent ft. It is intended for power switching circuits, series and shunt regulators, output stages and high fidelity amplifiers. In that family the best number is the rca 2n6254 because it has a high enough voltage to hold up well.
If your question requires design or troubleshooting information, please email email protected for a prompt reply. If looking for a lower power transistor, the 2n3054 is recommended. A voltage applied through a resistor to the base can control the current flowing from the collector to the emitter. The 2n3055 is a silicon npn power transistor intended for general purpose applications. Page 2 of 4 electrical characteristics t ambient25. The power semiconductor data book for design engineers first edition, texas instruments incorporated, publication no. Transistor codes surface mount, pnp, npn, choosing. Choosing transistor replacements electronics notes. Most of my uses are experimental and creative thinking, therefore i may blow one because of it intended use. The 2n3055 is a decent transistor, bw is typically about 3 mhz. May 19, 2010 hello, i purchased some 2n3055 transistors through ebay today and they were manufactured in india by continental device india limited. Some transistor cases, such as with the 2n3055, act as the transistor s collector.
If you install the wrong polarity, the sandwich wont work. Tech and trade 250w diy 2n3055 transistor based audio. It was introduced in the early 1960s by rca using a hometaxial power transistor process, transitioned to an epitaxial base in the mid1970s. Transistor kit 10 value 200pcs npn pnp power transistor assortment kit, transistors box pack for bc337, bc327, 2n2222, 2n907, 2n3904, 2n3906, s8050, s8550, a1015, c1815 by kulannder 4. The various aspects normally involved with these devices like vceo, vcbo, ft, ptc end up only being the facts on the sheets, with the folks failing to get the complete view of the internal operations of the part. Jan 24, 20 for the best answers, search on this site mosfets are a type of transistor but they dont function like a bijunction transistor, like the 2n3055. The 2n3055 transistor tends to be reasonably priced. The 2n6673 is a 15 mhz device so it is superior to the 2n3055. Internal schematic diagram october1995 absolute maximum ratings symbol. Parameters and characteristics r cross reference equivalent table transistors, scr, ic 2n2955 2n2955 to3 2n3055 2n3055 to3 2n3417 2n3417 to92 2n3704 2n3704 to92 2n3772 2n3772 to3 2n3773 2n3773. For the best answers, search on this site mosfets are a type of transistor but they dont function like a bijunction transistor, like the 2n3055.
The characteristics and approximate specifications of 2n series discrete transistors are generally the same between different manufacturers. A substitute transistor must have the same polarity, either pnp or npn, as the original. Aug 11, 2010 the 2n3055 hometaxial base version can be used. Transistor equivalent book 2sc2238 free download as pdf file. In certain cases, the quoted collector current may be exceeded. Most projects will specify a particular transistor, but if necessary you can usually substitute an equivalent transistor from the wide range available. The 2n3055 is a npn epitaxialbase planar transistor that normally comes encapsulated in a metal jedec to3 package. Heat sinks and fans increase the ability of a transistor to dissipate heat.
Make offer 1 pc rca 2n3771 bipolar junction transistor npn type to3 with hardware. Transistor equivalent book 2sc2238 transistor integrated circuit. Tech and trade 250w diy 2n3055 transistor based audio amplifier stereo board volume balance bass. Hello, i purchased some 2n3055 transistors through ebay today and they were manufactured in india by continental device india limited. Since the early 2000s, the 2n3055 transistor has been heavily targeted by counterfeiters, who substitute. Guide to 2n series transistors approximate specs and characteristics. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. It could be used for switching in the 50 khz range. At the maximum voltage, also called a breakdown voltage bv, electrons. Control the flow of electricity in your electronic equipment.
These devices can also be used in power switching circuits such as converters or inverters. Hifi 100 watt amplifier circuit using 2n3055 transistors. Get the best deals on power transistor transistors when you shop the largest online selection at. A to5 transistor with a p d of 3 watts might be able to dissipate 810 watts with a heat sink. How to test 2n3055 electronics forum circuits, projects. I also found a note saying that the acoustic part number 480037 was an rca 2n3442 and was. If looking for a substitute for either the 2n3055 or the 2n3054 models, transistors in to220 packages, such as. Transistor npn silicon 100v ic15a to3 audio power amp medium speed switch. Given that the heatsinks are typically made of metal, you want a large portion of the transistor s case to be in physical contact with the heatsink but not in electrical contact see diagram to the right.
It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. High power npn silicon transistor stmicroelectronics. Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. The characteristics and approximate specifications of 2n series discrete transistors are generally the same between different manufacturers when trying to decide which transistor you need, take into consideration the following.
Sir, i need substitutereplacement transistor type conforming with the original transistor data. Transistor kit 10 value 200pcs npn pnp power transistor assortment kit, transistors box pack for bc337, bc327, 2n2222, 2n907, 2n3904, 2n3906, s8050, s8550. The 2n3055 transistor has a power dissipation of 115w. Here we take a closer look at all the specific parameters related with. The basic application range include power switching, high fidelity amplification, shunt regulation, and forming the output stages of various power circuits. They are designed for audio amplifiers and drivers utilizing complementary or quasicomplementary circuits. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. Understanding 2n3055 transistor spec sheet bright hub. Unit conditions vceosus collectoremitter sustaing voltage 60 v ic200ma, ib0 vcersus collectoremitter sustaing voltage 70 v ic200ma, rbe100. It has been very useful for me because it doesnt provide only the nte replacements. Complementary power transistors stmicroelectronics. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor.
If ordered before 12pm super fast delivery limited areas. Make offer transistor 2n3055 1 pc rca 2n3771 bipolar junction transistor npn type to3 with hardware. Get your questions answered from other customers who own this product or have experience with it. Understanding a conventional 2n3055 spec sheet can probably be quite difficult for the many noobs in the field. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. This transistor has many uses other than audio and thats where i find it to be a great part to have when you want to try that idea.
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. What elements in china make this possible there is a lot of metal in a to3 case. High power npn silicon transistor stmicroelectronics preferred salestypes description the 2n3771, 2n3772 are silicon epitaxialbase npn transistors mounted in jedec jedec to3 metal case. Anyone needing this type of transistor this is the place to go. 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. Transistor equivalent or substitute used for power amplifier.
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