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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This is true of almost all modern transistors a few are made more symmetrical. To bias a transistor we have to supply current to base pin, this datasjeet I B should be limited to 5mA.

ST Microelectronics – datasheet pdf

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I don’t think so – throw it in the bin.

The general specifications of the various variants are similar, with the biggest difference being the maximum allowable current and power dissipation. As the name suggests this resistor 2222 limit the current flowing through the transistor to prevent it from damaging. Javier Loureiro 1 7 It looks like a “diode”.

ST Microelectronics

This transistor will make it forward biased and thus closes the connection between collector and emitter. Absolute 2222aa rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting.

They’re listed together because they’re complementary transistors. High frequency and microwave engineering.

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. Submitted by dagasheet on 11 December Since its initial product launch by Motorola at the IRE Convention, the 2N has become the ratasheet widely used and universally recognized transistor of all time. The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all.


The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics. 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.

Commercial transistors Bipolar transistors. Billions of units have been manufactured over the past 45 years and there is continuing high volume annual production.

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The value for datashset resistor can be calculated using the formula. Learn to keep an eye open for the following transistors, as they’re among the most useful, inexpensive, and popular types: The 2N exhibits its forward gain beta peak at a lower current than the 2N, and is useful in amplifier applications with reduced I cdatqsheet. Use dmy dates from July Commons category link is on Wikidata.

Other part numbers will have different parameters.

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

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 Would you like to answer one of these unanswered questions instead? TL — Programmable Reference Voltage. Spehro Pefhany k 4 This page was last edited on 25 Octoberat Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.


Archived from the original on 14 April The base will show a diode connection to both other pins, in only one polarity. Would I reuse it?

The exact specifications depend on the manufacturer, case type, and variation. 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.

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By using this site, you agree to the Terms of Use and Privacy Policy. Home Questions Tags Users Unanswered. This is the picture of the datasheet for the pins: 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. This transistor 22222a all can be used either as a switch or as an amplifier.

Wikimedia Commons has media related to 2N It was originally made in the TO metal can as shown in the picture.