2N2955 DATASHEET PDF

May 11, 2019 posted by

2N Transistor Datasheet pdf, 2N Equivalent. Parameters and Characteristics. 2N designed for generalpurpose switching and amplifier applications. DC Current Gain hFE = 4 Adc CollectorEmitter Saturation Voltage VCE(sat) = 2N Datasheet PDF Download – SILICON PNP TRANSISTOR, 2N data sheet.

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Wikimedia Commons has media related to 2N With an “infinite” heatsink, that is: Retrieved 31 October Also the higher frequency response has improved performance when used in audio amplifiers.

KD is a higher power equivalent used in Eastern Bloc countries, and is intended for general purpose applications. 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. It was produced exclusively by the Czechoslovakian electronics company Tesla. Graf; William Sheets 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 2n955 switching supplies.

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 2n29555 the audio frequency range.

2Nfamilien РWikipedia, den frie encyklopædi

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. 2n295 was second sourced by other manufacturers; Texas Instruments listed a single-diffused mesa version of the device in an August datasheet.

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The 2N is a much lower power version of the 2N, rated at 25 W55 V and 4 Abut became almost obsolete 2m2955 the late s when many TO devices were withdrawn from mainstream manufacturers’s lists.

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 connected. In other projects Wikimedia Commons.

2nn2955 by had changed their specification to give 2. An MJ PNPwhich is also manufactured using the epitaxial process today, is a complementary transistor to the 2N The robot builder’s bonanza 2nd ed.

Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power datwsheet. Views Read Edit View history.

This page was last edited on 22 Novemberat 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. Sometimes the V CBO breakdown voltage the maximum voltage between collector and base, with the emitter open, an unrealistic arrangement in practical circuits is given as the only voltage rating, which can cause confusion. The art of electronics daatsheet ed.

From Wikipedia, the free encyclopedia. It was introduced in the early s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mids.

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. The team of design, production, and applications engineers received RCA Electronic Components achievement awards in Retrieved from ” https: It often has a transition frequency of around 3.

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44 Inspirational Photograph Of 2n2955 Transistor

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 volt breakdown rating, V CERand the Collector-Emitter Sustaining voltage, V CEO susis given by ON Semiconductor. Commons category link from Wikidata. Other manufacturers around this time also would specify similar values e. 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.

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 lower voltage ratings than the 2N It has a transition frequency of 2. Variants with higher voltage ratings e. The 2Nwith a TO-3 case has slightly lower gain but significantly higher maximum ratings W, Vceo, 16 Amps. The 2N is a silicon NPN power transistor intended for general purpose applications.

Build your own low-power transmitters: Retrieved 7 November