Symbol. Parameter. Value. Unit. VCBO. Collector-Emitter Voltage (IE = 0). V. VCEO. Collector-Emitter Voltage (IB = 0). V. VEBO. Emitter-Base Voltage (IC. SMBT A. 1. Oct NPN Silicon Switching Transistor. • High DC current gain: mA to mA. • Low collector-emitter saturation voltage. Datasheet contains the design specifications for product development. Datasheet contains preliminary data; supplementary data will be.

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If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped. The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.

It is frequently used as a small-signal transistor, [4] [5] daatsheet it remains a small general purpose transistor [6] of enduring popularity. Note that the motor here draws about mA from the 12V power source, since the 2N has collector current rating upto mA this circuit is possible had it been a BC the transistor should have been burnt.

PN2222A . Datasheet. Equivalente. Reemplazo. Hoja de especificaciones. Principales características

Learn to keep an eye open for the following transistors, as they’re among the most useful, inexpensive, and popular types: By using this site, you agree to the Terms of Use and Privacy Policy. Most 2Ns have the orientation which your diagram shows, where if the flat side is daasheet you, the pins are E-B-C respectively. This transistor like all can be used either as a switch or as an amplifier.

In other projects Wikimedia Commons. It looks like a “diode”. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. This transistor will make it forward biased and thus closes the connection between collector and emitter. Commercial transistors Bipolar transistors. I don’t think so – throw it in datashest bin.

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. The value for this resistor can be calculated using the formula. The exact specifications depend on the manufacturer, case type, datashet variation.


Javier Loureiro 1 7 The 2N is considered a very common transistor, [1] [2] [3] and is used as an exemplar of an NPN transistor. JEDEC registered parameters include outline dimensions, small-signal current gaintransition frequencymaximum values for voltage withstand, current rating, datqsheet dissipation and temperature rating, and others, measured under standard test conditions.

In actual circuit modifications might be required. The JEDEC registration of a device number ensures particular rated values 2222a be met by all parts offered under that number.

This page was last edited on 25 Octoberat TL — Programmable Reference Voltage. You have to try each of the three pins to the two others, with both polarities datasheef pairs of tests.

Junkbots, bugbots, and bots on wheels: However one important thing to notice is the Base resistor a.

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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. 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. It is designed for low to medium currentlow powermedium voltageand can operate at moderately high speeds.

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. Would you like to answer one of these unanswered questions instead? The general specifications of the various variants are similar, with the biggest difference being the maximum allowable current and power dissipation.


The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all. Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting.

So if you looking for an NPN transistor that could switch loads of higher current then 2NA might the right choice for your project. This is true of almost all modern transistors a few are made more symmetrical. 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 used a base voltage of 5V and a value of 1K as current limiting resistor. Thank 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.

Graf and William Sheets I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. Applications Can be used to switch high current upto mA loads It can also be used in the various switching applications.

The 2N exhibits its forward datashet beta peak at a lower current than the 2N, and is useful in amplifier applications with reduced 22222a ce. If it is to replace a shorted dztasheet, we will never know if both are the same ebc configuration between your new 2N and the old 2N Archived from the original on 14 April By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Am I missing something dxtasheet

All variations have a beta or current gain h fe of at least in optimal conditions.