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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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. 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 Philips ON F It’s used to drive 4 injectors simultaneously, in this configuration: KD is a higher power equivalent used datawheet Eastern Bloc countries, and is intended for general purpose applications.

The robot builder’s bonanza 2nd ed. Also the higher frequency response has improved performance when used in audio amplifiers. JohnHonniball, thanks for looking. No transistors prefixed ‘ON’ at all. It often has a transition frequency of around 3. 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:.

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KD503 Datasheet, Equivalent, Cross Reference Search

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. Views Read Edit View history. 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.


Commons category link from Wikidata. Build your own low-power transmitters: 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: The 2Nwith a TO-3 case has slightly lower gain but significantly higher maximum ratings W, Vceo, 16 Amps.

Variants with higher voltage ratings e.

Sign up or log in Sign up using Google. 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.

John M 94 8.

(PDF) KD503 Datasheet download

Retrieved from ” https: With changes to semiconductor manufacturing technology, the original process became economically uncompetitive in the mids, and a datxsheet device was created using epitaxial base technology. 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.

From Wikipedia, the free encyclopedia. Modern 2N datasheets often, but not always, specify datasheer T of 2. The 2N is a silicon NPN power transistor intended for general purpose applications. 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.

Home Questions Tags Users Unanswered. It has a transition frequency of 2.

KD Datasheet PDF –

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read kx503 updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. I guess the 31 is the 31st week of the year, then. Retrieved 7 November But there’s a date code on the part, so maybe it’s a newer datasheeet than the book.


Wikimedia Commons has media related to 2N Although the original 2N went into decline relative to epitaxial-base transistors because kd53 high manufacturing costs, the epitaxial-base version continued to be used in both linear amplifiers and switching supplies.

It was introduced in the early s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mids. By using this site, you agree to the Terms of Use and Privacy Policy.

In other projects Wikimedia Commons. RCA by had changed their specification to give 2. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. 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. The team of design, production, and applications engineers received RCA Electronic Components achievement awards in An MJ PNPwhich is also manufactured using the epitaxial process today, is a complementary transistor to the 2N Philips ON Ask Question.

KD Datasheet pdf – AF Power Transistor NPN – Tesla Elektronicke

The total power dissipation written P D in most American md503, P tot in European ones depends on the heatsink to which the 2N is connected. This page was last edited on 22 Novemberat Ah, so the F refers to the date?

Retrieved 31 October It was produced exclusively by the Czechoslovakian electronics company Tesla. Would someone have information on the device’s characteristics, or a pointer to the datasheet?