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2N2955 DATASHEET PDF

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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With an “infinite” heatsink, that is: Also the higher frequency response 22n2955 improved performance when used in audio amplifiers. Graf; William Sheets Build your own low-power transmitters: The KD have higher power and higher current than 2N KD are packaged in a TO-3 case style called T41 by Teslait is a 20 amp80 voltwatt power transistor. This page was last edited on 22 Dataasheetat Views Read Edit View history.

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ratasheet the 2N, rated at 25 W55 V and 4 Abut became almost obsolete about the late s when many TO devices were withdrawn from mainstream manufacturers’s lists.

From Wikipedia, the free encyclopedia. Other manufacturers around this time also would specify similar values 2nn2955.

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.

The art of electronics 2nd ed.

RCA by had changed their specification to give 2. 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 datashheet power dissipation written P D in most American datasheets, P tot in European ones depends on the heatsink to which the 2N is connected.

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Retrieved from ” https: 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 Retrieved 31 October 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.

With changes to semiconductor manufacturing technology, the original process became economically dataasheet in the mids, and a similar device was created using epitaxial base technology. The 2N remains very popular as a series pass transistor in linear power supplies and is still used in for medium- 2n22955 and high- power circuits generally, including low frequency power datashret although its use in audio power amplifiers datasueet DC-to-AC inverters is now less common and its use in higher frequency switch-mode applications never was very practical.

It often has a transition frequency of around 3. It was introduced in the early s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mids. Retrieved 7 November 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.

It has a transition frequency of 2.

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. Wikimedia Commons has media related to 2N The team of design, production, and applications engineers received RCA Electronic Components achievement awards in By using this site, you agree to the Terms of Use and Privacy Policy.

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KD is a higher power equivalent used in Eastern Bloc countries, and is 22n955 for general purpose applications.

2N2955 Datasheet

Commons category link from Wikidata. 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.

The 2Nwith a Datashdet case has slightly lower gain but significantly higher maximum ratings W, Vceo, 16 Amps. Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers.

The frequency at which gain begins to drop off may be much lower, see below. It was produced exclusively by the Czechoslovakian electronics company Tesla.

2N equivalent datasheet & applicatoin notes – Datasheet Archive

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. Variants with satasheet voltage ratings e. In other projects Wikimedia Commons. It was second sourced by other manufacturers; Texas Instruments listed a single-diffused mesa version of the device in an August datasheet.