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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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 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.

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.

Ah, so the F refers to the date? Would someone have information on the device’s characteristics, or a pointer to the datasheet?

Power transistor identification: Philips ON – Electrical Engineering Stack Exchange

Build your own low-power transmitters: By using this site, you agree to the Terms of Use and Privacy Policy. Commons category link from Wikidata. Home Questions Tags Users Unanswered. It was produced exclusively by the Czechoslovakian electronics company Tesla. Also datasjeet higher frequency response has improved performance when used in audio amplifiers.

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version of the 2N, rated at 25 W55 V and 4 Abut became almost obsolete about the late s when many TO devices were withdrawn from mainstream manufacturers’s lists.

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KD are packaged in a TO-3 case style called T41 by Teslait is a 20 amp80 voltwatt power transistor. Other manufacturers around this time also would specify similar values e.

Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers. Philips ON F It’s used to drive 4 injectors simultaneously, in this configuration: 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.

From Wikipedia, the free encyclopedia. I guess the 31 is the 31st week of the year, then. Variants with higher voltage ratings e.

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.

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. In other projects Wikimedia Commons. 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.

An MJ PNPwhich is also manufactured datashet the epitaxial process today, is a complementary transistor to the 2N I had a look in a copy of Towers’ International Transistor Selector, and there’s no mention of it.

Retrieved 31 October The art of electronics ddatasheet ed. Modern 2N datasheets often, but not always, specify f T of 2. The 2N, 2N, and 2N devices, for example, which date back to the s but have been improved, are datashewt useful in new designs and are still popular for experimenters. Post as a guest Name. Graf; William Sheets John M 94 8. Email Required, but never shown. The 2Nwith a TO-3 case has slightly lower gain but significantly higher maximum ratings W, Vceo, 16 Amps.

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

KD503 Datasheet

Wikimedia Commons has media related to 2N It has a transition frequency of 2. By clicking “Post Your Answer”, 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. Sign up using Facebook. 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.

RCA by had changed their specification to give 2. I’m trying to find information on a power transistor used on a automotive ECU.

KD Datasheet, PDF – Alldatasheet

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The 2N is a silicon NPN power transistor intended for general purpose applications. 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.

It often has a transition frequency of around 3.