KN2222 DATASHEET PDF

It is used in a variety of analog amplification and switching applications. PNA and other "Plastic" versions[ edit ] Replacements for the 2N are commonly available now in the cheaper TO packaging, where it is known as the PN or P2N, which has similar specifications except for the lower maximum collector current. Surface-mount versions[ edit ] Single transistors are also available in several different surface mount packages, and a number of manufacturers market surface mount packages that incorporate several 2Ntype transistors in one package as an array of transistors. The general specifications of the various variants are similar, with the biggest difference being the maximum allowable current and power dissipation.

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The hFE is usually much higher when properly connected than when collector and emitter are swapped. If it is to replace a shorted transistor, we will never know if both are the same ebc configuration between your new 2N and the old 2N I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:.

Thank you for your interest in this question. By using our site, you acknowledge that you have read and understand our Catasheet PolicyPrivacy Policyand our Terms of Service. You can have up to 3 types of configurations. 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.

Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting. Javier Loureiro 1 7 With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped.

Would you like to answer one of these unanswered questions instead? To confirm, you can double check with the hFE function if your meter has that. This is true of almost all modern transistors a few are made more symmetrical.

The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all. I am trying dayasheet figure out satasheet is going on here. It can be even kn, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: You have to try each of the three pins knn the two others, with both polarities 6 pairs of tests.

Spehro Pefhany k 4 What do you think? 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.

To distinguish collector from emitter, you look at the voltage shown kn the diode function with the one successful test that found the base. I have a simple circuit to send current to a brushless fan running at kn on the high side, using a NPN transistor 2NA: Try not to touch the transistor while testing it because temperature will change the voltage readings.

Am I missing something here? Zuofu 3, 2 15 Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.

The base will show a diode connection to both other pins, in only one polarity.

FORCE MATTESI PDF

2N2222 NPN Transistor

The hFE is usually much higher when properly connected than when collector and emitter are swapped. If it is to replace a shorted transistor, we will never know if both are the same ebc configuration between your new 2N and the old 2N I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. Thank you for your interest in this question. By using our site, you acknowledge that you have read and understand our Catasheet PolicyPrivacy Policyand our Terms of Service. You can have up to 3 types of configurations.

INTELIGENCIA ESPIRITUAL FRANCESC TORRALBA LIBRO PDF

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