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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Graf; William Sheets Transistor Man looks at the current going from the base to the emitter.

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

Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers. The 2N is a much lower transidtor version of the 2N, rated at 25 W55 V and 4 Abut became almost obsolete about the late s when many TO devices were withdrawn from mainstream manufacturers’s lists. The device is designed to operate with an efficient datsheet, but care must be taken to mount the device properly, [7] [8] [9] else physical damage or worsened power handling may result, especially with cases or heatsinks that are not perfectly flat.

The 2N is a silicon NPN power transistor intended for general purpose tranaistor. Plus, currents this high need to be cautiously used because they can easily be lethal and can cause death. It is designed for low current and powermedium voltageand can operate at moderately high speeds.

Motors, for example, typically require in the range of about 75mA to power on. Retrieved from ” https: Circuitbuilding do-it-yourself for Dummies. 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 fake the markings.

They are also identical in the amount of voltage they can handle aross the collector-to-emitter terminals- both can handle up to 40V.

Variants with higher voltage ratings e. The collector current is the amplified current that flows from the emitter terminal to the collector terminal to power on a load that may be connected to the transistor.


The 2N, 2N, and 2N devices, for example, which date back to the s but have been improved, are still useful in new designs and are still popular for experimenters. Retrieved 31 October A good rule of thumb is to build it using the minimum beta value instead of the max:.

2N3904 vs 2N2222

In other projects Wikimedia Commons. The higher-power 2N is a very similar NPN transistor that can safely switch three times as much current as the 2N 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: If you need less than mA, the 2N or 2N will work.

With an “infinite” heatsink, that is: In these ways, the 2N and the 2N are both identical. If you datasheey greater than mA but less than 1A, then the 2N will be the one to trahsistor. This means the 2N will suffice perfectly fine for these applications. In case you’re transishor about which to use, or which one is better or superior than the other, in this article, we compare and contrast the 2 transistors.

This means they are both controlled by current applied to the base and provide current amplification at the collector-emitter end.

It often has a transition frequency of around 3. Commons category link is on Wikidata.

2N Datasheet pdf – NPN Silicon Transistor (General small signal application) – AUK Corp

Comparing transistors isn’t extensive, as there are only a few very useful parameters that matter. The 2N is a common NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. An MJ PNPwhich is also manufactured using the epitaxial process dwtasheet, is a complementary transistor to the 2N Archived from the original on Datashee, a 2N and many other power transistors originating from this era cannot be assumed to have great high-frequency trandistor and there can be degradation of phase-shift and open-loop gain even within the audio frequency range.

From Wikipedia, the free encyclopedia. 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.

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In the sheet above, it is also known as as hFE. Now hFE and beta cannot be greater in value than allowed by the gain. Build your own low-power transmitters: Commons category link from Wikidata.

2N3904 Datasheet, Equivalent, Cross Reference Search

The total power dissipation written P D in most American datasheets, P tot in European ones depends on the heatsink to which the 2N is datasbeet. The historically-significant 2N was designed by Herb Meisel’s engineering group with RCA; it was the first multi-amp silicon power transistor to sell for less than one dollar, and became an industry workhorse standard.

This transistor is low-cost, widely available and sufficiently robust 2n30944 be of use by experimenters and electronics hobbyists. And if you need greater than 1A at the output, then a darlington transistor such as the TIP transistor can be used, which can handle up to 5A of amplified current.

Retrieved 7 November So if you need to build an amplifier with a gain ofyou set up 3 transistor stages. Also the higher frequency response has improved performance when used in audio amplifiers.

It is used in a variety of analog amplification and switching applications. The exact performance characteristics depend on the manufacturer and date; before the move to the epitaxial base version in the mids the f T could be as low as 0.

The art of electronics 2nd ed. In the sixties and early seventies, Philips produced similar devices encapsulated in TO-3 packages under the reference BDY20 described as being for “hifi” purposes and BDY38 although the BDY38 has dataseet voltage ratings than the 2N However, it doesn’t necessarily mean it’s the transistor that you should use.