2222A TRANSISTOR DATASHEET PDF

NPN Silicon Epitaxial Planar Transistor for. Switching and Amplifier Applications. • RoHS compliance. Mechanical Data. Case: SOT, Plastic Package. The 2N is a common NPN bipolar junction transistor (BJT) used for general purpose depend on the manufacturer, case type, and variation. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. PNA. SMALL SIGNAL NPN TRANSISTOR. PRELIMINARY DATA s. SILICON EPITAXIAL PLANAR NPN. TRANSISTOR s. TO PACKAGE SUITABLE FOR.

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The base pin of the transistor has to be biased with a voltage; this voltage is provided by the potential divider network formed by the resistors R4 and R6.

To distinguish collector from emitter, you look at the voltage shown in the diode function with the one successful test that found the base. Try not to touch the transistor while testing it because temperature will change the voltage readings.

The 2N is considered a very common transistor, [1] [2] [3] and trwnsistor used as an exemplar of an NPN transistor.

KSPA can allow collector current upto mA and also has power dissipation of mW which can be used to drive larger loads yransistor compared with BC The BC is a low voltage, low current, general-purpose switching transistor in a TO package.

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. Submitted by trahsistor on 24 June But there are two important features that distinguish both. To bias a transistor we have to supply current to base pin, this current I 2222w should be limited to 5mA. They’re listed together because they’re complementary transistors. From Wikipedia, the free encyclopedia. Other part numbers will have different parameters.

By using our site, you acknowledge that you have read and understand our Cookie Policy trannsistor, Privacy Policyand our Terms of Service. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around mV. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. The base will show a transistoe connection to both other pins, in only one polarity.

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Wikimedia Commons has media related to 2N In this type of circuit, the Emitter dztasheet the Base pin of the transistor should be commonly connected to a same voltage, so we have connected it to the Ground potential using two resistors R4 and R3. The resistor R2 is used to limit the current though the collector of the transistor and is not mandatory.

To make things simple I have shown a simplified circuit to make a transistor as switch. 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. This transistor will make it forward biased and thus closes the connection between collector and emitter. Hence the 2N pin-out is sadly not standardized.

ST Microelectronics

In other projects Wikimedia Commons. It looks like a “diode”. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. The exact specifications depend on the manufacturer, case type, and variation. I don’t think so – throw it in the bin.

ST Microelectronics – datasheet pdf

Am I missing something here? Another Common application of a Transistor is as amplifiers. Billions of units have been manufactured over the past 45 years and there is continuing high volume annual production. Views Read Edit View history. 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.

When this transistor is fully biased then it can allow a maximum of mA to flow across transistog collector and emitter.

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PN2222A Datasheet, Equivalent, Cross Reference Search

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. The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all. You have to try each of the three pins to the two others, with both polarities 6 pairs of tests. The transistor will begin to conduct when the voltage across the Base and Emitter pin exceeds 0.

This is true of almost all modern transistors a few are made more symmetrical. It is very similar to a mechanical switch but here we will control the switch using electric signals.

Junkbots, bugbots, and bots on wheels: How to use 2NA This transistor like all can be used either as a switch or as an amplifier. There are many types of amplifier circuits that are possible with transistor but this is the most commonly used one because it is very good in amplifying low frequency voltage signals like audio signals. Thank you for your interest in this question.

PNA Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

What do you think? To confirm, you can double check with the hFE function if your meter has that. However one important thing to notice is the Base resistor a. Normally this type of transistor will either be used as a switch or as an amplifier, both of which is discussed below.

TL — Programmable Reference Voltage. This transistor like all can be used either as a switch or as an amplifier. Applications General purpose NPN transistor Can datasheef used to switch high current upto mA loads It can also be used in the various switching applications.