KD503 DATASHEET PDF

Tesla KD datasheet, AF Power Transistor NPN (1-page), KD datasheet, KD pdf, KD datasheet pdf, KD pinouts. KD Datasheet, KD PDF, AF Power Transistor NPN. Characteristics of the KD bipolar transistor. Type – n-p-n; Collector-Emitter Voltage: 80 V; Collector-Base Voltage: 80 V; Emitter-Base Voltage: 5 V; Collector .

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Views Read Edit View datasheett. Sign up using Email and Password. The frequency at which gain begins to drop off may be much lower, see below. Post as a guest Name. Ah, so the F refers to the date? An MJ PNPwhich is also manufactured using the epitaxial process today, is a complementary transistor to the 2N KD is a higher power equivalent used in Eastern Bloc countries, and is intended for general purpose applications.

And here’s what the pins look from the other side they’re the long metal tabs that come from the case, around the middle of the picture: KD are packaged in a TO-3 case style called T41 by Teslait is a 20 amp80 voltwatt power transistor. In other projects Wikimedia Commons.

Email Required, but never shown. 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 Commons category link from Wikidata.

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.

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.

KD Datasheet, PDF – Alldatasheet

The KD have higher power and higher current than 2N The 2Nwith a TO-3 case has slightly lower gain but significantly higher maximum ratings W, Vceo, 16 Amps. 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. ratasheet

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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. But there’s a date code on the part, so maybe it’s a newer type than the book.

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. Would someone have information on the device’s characteristics, or a pointer to the datasheet?

It often has a transition frequency of around 3. With an “infinite” heatsink, that is: Also the higher frequency response has improved performance when used in audio amplifiers.

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.

This page was last edited on 22 Novemberat 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.

KD503 Datasheet, Equivalent, Cross Reference Search

Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers. By using this site, you agree to the Terms of Use and Privacy Policy. And here’s what the pins look from the other side they’re the long metal tabs that come datashest the case, around kd53 middle of the picture:.

The team of design, production, and applications engineers received RCA Electronic Components achievement awards in It was produced exclusively by the Czechoslovakian electronics company Tesla.

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I guess the 31 is the 31st week of the year, then. Philips ON F It’s used to drive 4 injectors simultaneously, in this configuration: The 2N is a much lower power 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.

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Home Questions Tags Users Unanswered. Having reverse-engineered the circuit, I’m fairly certain that it’s a NPN transistor, but I’ve found some references mentioning a Darlington transistor was used on the ECU.

From Wikipedia, the free encyclopedia. Post Your Answer Discard By clicking “Post Your Daasheet, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Datasheer 7 November The 2N is a silicon NPN power transistor intended for general purpose applications. I had a look in a copy of Towers’ International Transistor Selector, and there’s no mention of it. Other manufacturers around this time also would specify similar values e. 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 CER datahseet, and the Collector-Emitter Sustaining voltage, V CEO susis given by ON Semiconductor.

The device is designed to operate with an efficient heatsink, 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.

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