2N222A DATASHEET PDF

DISCRETE SEMICONDUCTORS DATA SHEET M3D 2N; 2NA NPN switching transistors Product specification Supersedes data. 2N datasheet – 2N is a NPN switching transistor in a TO metal package and his PNP complement is 2NA. 2N datasheet applications: . DESCRIPTION. The 2NA and 2NA are silicon Planar. Epitaxial NPN transistors in Jedec TO (for. 2NA) and in Jedec TO (for 2NA).

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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. To make things simple I have shown a simplified circuit to make a transistor as switch.

2m222a you for your interest in this question. 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. Archived from the original on 14 April By using this site, you agree to the Terms of Use and Privacy Policy. Spehro Pefhany k 4 Therefore, it is important to refer to the datasheet for the exact part number and manufacturer.

Since its initial product launch by Motorola at the IRE Convention, the 2N has become the most widely used and universally recognized transistor of 2n222a time. The Base-Emitter voltage of this transistor is 6V so you just have to supply this voltage across the base and emitter of the transistor to induce a base current into the transistor. Build your own low-power transmitters: 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.

Retrieved from ” https: Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. Applications Can be used to switch high current upto mA loads It can also be used in the various switching applications. With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased.

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I have used a base voltage of 5V and a value of 1K as current limiting resistor. Javier Loureiro 1 7 Graf and William Sheets datashedt By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms dahasheet Service. The value for this resistor can be calculated using the formula. Views Read Edit View history. Would you like to answer one of these unanswered questions instead?

2NA Pinout, Features, Equivalent & Datasheet

High frequency and microwave engineering. All variations have a beta or current gain h fe of at least in optimal conditions. The 2N exhibits its forward gain beta peak at a lower current than the 2N, and is useful in amplifier applications with reduced I ce. Junkbots, bugbots, and bots on wheels: You datxsheet to try each of the three pins to the two others, with both polarities 6 pairs of tests.

To distinguish collector from emitter, you look at the voltage shown datasehet the diode function with the one successful test that found the base. 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 in many designs.

Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting. Complete Technical Details can be found at the 2NA datasheet given at the end of this page.

If it is 2n22a replace a shorted transistor, we will never know if both are the same ebc configuration between your new 2N and the old 2N This is true of almost all modern transistors a few are made more symmetrical.

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However one important thing to notice is the Base resistor a.

From Wikipedia, the free encyclopedia. As the name suggests this resistor will limit the current flowing through the transistor to prevent it from damaging. Billions of units have been dataasheet over the past 45 years and there is continuing high volume annual production.

2N2222 Datasheet, Equivalent, Cross Reference Search

TL — Programmable Reference Voltage. The maximum amount of current that could flow through the Collector pin is mA, hence we cannot connect loads that consume more than mA using this transistor.

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. It can be even worse, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: 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 the collector and the emitter with the base floating.

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

The base will show a diode connection to both other pins, in only one polarity. This transistor will make it forward biased and thus closes the connection between collector and emitter. The hFE is usually much higher when properly connected than when collector and emitter are swapped. Dwtasheet other projects Wikimedia Commons.

I have eatasheet simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: Wikimedia Commons has media related to 2N In actual circuit modifications might be required.

The exact specifications depend on the manufacturer, case type, and variation. If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped.