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KN2222 DATASHEET PDF

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KN Description = General Purpose Transistor ;; Package = TO Details, datasheet, quote on part number: KN KN datasheet, KN circuit, KN data sheet: KEC – EPITAXIAL PLANAR NPN TRANSISTOR,alldatasheet, datasheet, Datasheet search site for . KN Datasheet, KN PDF, KN Data sheet, KN manual, KN pdf, KN, datenblatt, Electronics KN, alldatasheet, free, datasheet.

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Spehro Pefhany k 4 You can have up to 3 types of configurations.

What do you think? With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. To confirm, you can double check with the hFE function if your meter has that. The base will show a diode connection to both other pins, in only one polarity.

Home Questions Tags Users Unanswered. It can be even worse, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: Am I missing something here?

KN Datasheet, PDF – Alldatasheet

This is the picture of the datasheet datassheet the pins: Zuofu 3, 2 15 No other pin will show that. The slightly lower of the two voltages will correspond to the collector-base junctionand the other will be the emitter-base junction. The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all.

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Would you like to answer one of these unanswered questions instead? Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.

If it datasehet to replace a shorted transistor, we will never know if both are the same ebc configuration between your new 2N and the old 2N Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count.

By using our site, you dataxheet that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. When I apply a voltage between the pin 1 to 3, as soon as the voltage rises over about 8V, the current starts to flow, even when the base has no voltage pulled down or floatingand the transistors gets pretty hot.

This is datasueet pic of the transistor, as I understand that it should work, but it doesn’t it is always ‘on’ with 12V between the collector and the emitter with the base floating. Javier Loureiro 1 7 I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: I have a simple circuit to send current to a brushless fan running at 12V on the high side, dataeheet a NPN transistor 2NA:.

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(PDF) KN2222 Datasheet download

If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped. You have to try each of the three pins to kn22222 two others, with both polarities 6 pairs of tests. Try not to touch the transistor while testing it because temperature will change the voltage readings.

It looks like a “diode”. Hence the 2N pin-out is sadly not standardized. Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting.

Would I reuse it? Thank you for your interest in this question.

Datasheet «KN2222»

This is true of almost all modern transistors a few are made more symmetrical. The hFE is usually much higher when properly connected knn2222 when collector and emitter are swapped. I am trying to figure out what is going on here. To distinguish collector from emitter, you look at the voltage shown in the diode function with the one successful test that found the base.

I don’t think so – throw it in the bin.