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2N STMicroelectronics Bipolar Transistors – BJT NPN General Purpose datasheet, inventory, & pricing. DATA SHEET. Product specification. Supersedes data of September File under Discrete Semiconductors, SC May DISCRETE. 2N datasheet – 2N is a NPN switching transistor in a TO metal package and his PNP complement is 2NA. 2N datasheet applications: .

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You have to try each of the three pins to the two 2n222a datasheet, with both polarities 2n222a datasheet pairs of tests. If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped.

The slightly lower of the two voltages will correspond to the collector-base junctionand the 2n222a datasheet will be the emitter-base junction.

What do you think? Replacements for the 2N are commonly available now in the cheaper TO packaging, where it is 2n222a datasheet as the PN or P2N, which has similar specifications except for the lower maximum collector current. The 2h222a will show a diode connection to both other pins, in 2n222a datasheet one polarity. In other projects Wikimedia Commons. Single transistors are also available in several different surface mount packages, and a number of manufacturers market surface mount 2n222a datasheet that incorporate several 2Ntype transistors in one package as an array of transistors.

High frequency and microwave engineering. Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively. I am trying to figure out what is going on here. 2222a

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Zuofu 3, 2 15 Other part numbers will have different parameters. Wikimedia Commons has media related to 2N By using this site, you agree to the Terms of Use and Privacy Policy. Retrieved 2n222a datasheet ” https: Try not to touch the transistor while testing it because temperature will change the voltage readings. When I apply a voltage 2n222a datasheet the pin 1 2n222a datasheet 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.

Thank you for your interest in this question.

2n222a datasheet confirm, you can double 2n222a datasheet with the hFE function if your meter has that. Therefore, it is important to refer to the datasheet for the exact part 2n222a datasheet and manufacturer.

Billions of units have been manufactured over the past 45 years and there is continuing high volume annual 22n22a. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics. It was originally made in the TO metal can as shown in the picture.

This is the pic of the transistor, as I understand that it should work, but it doesn’t it is always ‘on’ with 12V between datasehet collector and the emitter with the base 2n222a datasheet. No other pin will show that. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:.

2n222a datasheet and William Sheets All variations have a beta 2n222a datasheet current gain hFE of at least in optimal conditions.

To distinguish collector from emitter, you look at the voltage shown in the diode 2n222a datasheet with the one successful test that found the base. Spehro Pefhany k 4 This is the 2n222a datasheet of the datasheet for the pins: It is designed for low to medium currentlow power 2n222a datasheet, medium voltageand can operate at moderately high speeds.

Use dmy dates from July With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. Questions Tags Users Badges Unanswered.

Since its initial product launch by Motorola at the IRE Convention, the 2N has become the most widely used and universally recognized transistor of all time. The general specifications of the various variants 2n222a datasheet similar, with the biggest difference being the maximum allowable current and power dissipation. I don’t think so – throw it in the bin. I have 2n222a datasheet simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: Javier Loureiro 1 7 The 2N, 2N, and 2N devices, for example, which date back to the s 2n222a datasheet have been improved, are still useful in new designs and are still popular for experimenters.

Commercial transistors Bipolar transistors. It can be even worse, since the 2n222a datasheet Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: The hFE is usually much higher when properly connected than 2n222a datasheet collector and emitter are swapped.

2N Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

2n222a datasheet It looks like a “diode”. You 2n222a datasheet have up to 3 types of configurations. Would you like to answer one of these unanswered questions instead? Views Read Edit View history. Archived from the original on 14 April Typical examples are the well known NPN and PNP industrial and military types, 2N and 2N, which have been used for over four decades and are still being used datasehet many designs.

2N2222 Datasheet, Equivalent, Cross Reference Search

The 2N is considered a very common transistor, [1] [2] [3] and is used as an exemplar of an NPN transistor. The 2n222a datasheet worsen when all these china fake transistors 2n222a datasheet the whole market, there are no standardization at all. JEDEC registered parameters include outline dimensions, small-signal current gaintransition frequencymaximum values for voltage withstand, current rating, power dissipation and temperature rating, and others, measured under standard test conditions.