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Transistors .. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual. DATA SHEET. Product specification. Supersedes data of Apr Oct DISCRETE SEMICONDUCTORS. 2N NPN switching. Unless otherwise specified in this data sheet, this product is a standard commercial product and is not intended for use in applications that require extraordinary.

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It is designed for low current and powermedium voltageand can operate at moderately high speeds. The maximum collector-to-emitter voltage for the 2N, like other transistors, depends on the resistance path the external circuit provides between the base and emitter of the transistor; with ohms a 70 transisfor breakdown rating, V CERand the Transistir Sustaining voltage, V CEO susis given by ON Semiconductor.

Modern 2N datasheets often, but not always, specify f T of 2.

Graf; William Sheets Motors, for example, typically require in the range of about 75mA to power on. The frequency at which gain begins to drop off may be much lower, see below.

Filed under beta hfe gain 2n tymkrs amplification transistor man transistors. RCA by had changed their specification to give 2. So I asked folks what their favorite transistor was for audio applications and instead of getting 10 different kinds, a few of them agreed on the 2N spoilsports: A good rule of thumb is to build it using the minimum beta value instead of the max:.

The 2N and the 2N are 2 of the most popular NPN bipolar daatasheet transistors in the electronics market. The 2N is a common NPN bipolar junction transistor used tdansistor general-purpose low-power amplifying or switching applications. These really are extreme conditions. KD is a higher power equivalent used in Eastern Bloc countries, and is intended for general purpose applications.

Usually a 2N will suffice for most circuits, but if you need more than mA, then you should use a 2N tarnsistor. Now hFE and beta datasheeg be greater in value than allowed by the gain. In the sheet above, it is also known as as hFE.


Beta? Hfe? Gain? 2Ns! I think its transistor

Anyway so somehow they got to explaining how to find the DC current gain of a transistor based on its datasheet and such:. Commons category link is on Wikidata.

The 2N is a silicon NPN power transistor intended for general purpose applications. From Wikipedia, the free encyclopedia. Typical components that may require a transistor in order to be driven are motors, buzzers, solenoids, and high-power LEDs.

The total power dissipation written P D in most American datasheets, P tot datasbeet European ones depends on the heatsink to which the 2N is connected. If you need less than mA, the 2N or 2N will work.

Since the early s, the 2N transistor has been heavily targeted by counterfeiters, who substitute much smaller silicon dies with lesser power ratings, use inferior mounting techniques, and transkstor the markings. Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers.

Views Read Edit View history. This means the 2N will suffice perfectly fine for these applications. This wouldn’t be acceptable, since it exceeds the maximum V CEO. But, if you wanted to power several of them, for instance, you may need more current, what you would get from the 2N, up to 1A.

The 2N remains very popular as a series pass transistor in linear power supplies and is still used in for medium- current and high- power circuits generally, including low frequency power converters although its use in audio power amplifiers and DC-to-AC inverters is now less common and its use in higher frequency switch-mode applications never was very practical.

So if you need to build an amplifier with a gain ofyou set up 3 transistor stages. They are also identical in the amount of voltage they can handle aross the collector-to-emitter terminals- both can handle up to 40V. Although the original 2N went into decline relative to epitaxial-base transistors because of high manufacturing costs, the epitaxial-base version continued to be used in both linear amplifiers and switching supplies. It is by now unlikely to actually obtain a genuine 2N transistor when using popular sales platforms such as Amazon or Ebay; classic electronics distributors are mostly still able to properly source them.


2N Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

With changes to semiconductor manufacturing technology, the original process became economically uncompetitive in the mids, and a similar device was created using epitaxial base technology. Archived from the original on It was introduced in the early s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mids. These all normally require much less than mA to be powered on.

Nevertheless, a 2N and many other power transistors originating from this era cannot be assumed to have great high-frequency performance and there can be degradation of phase-shift and open-loop gain even within the audio frequency range.

So the choice ultimately depends on how much current is needed.

2N3904 vs 2N2222

This transistor is low-cost, widely available and sufficiently robust to be of use by experimenters and electronics hobbyists. In these ways, the tramsistor and the 2N are both identical.

So a bunch of the folks were talking about engineering and electronics and the like in our irc room and I got to talking about how engineers love smashing a whole bunch of letters and numbers together to make chip names sound ridiculous.

The art of electronics 2nd ed. If you need greater than mA but less than 1A, then the 2N will be the one to use. An MJ PNPwhich is also manufactured using the epitaxial process today, is a complementary transistor to the 2N Retrieved from ” https: So in this way, the 2N does have superiority in that it can handle greater current.