Datasheet contains the design specifications for product development. Datasheet contains preliminary data; supplementary data will be. 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.

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As the name suggests this resistor will limit the current flowing through the transistor to prevent it from damaging. This transistor like all can be used either as a switch or as an amplifier. How to use 2NA This transistor like all can be used either as a switch or as an amplifier. 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.

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

2NA Pinout, Features, Equivalent & Datasheet

TL — Programmable Reference Voltage. The slightly lower of the two voltages will correspond to the collector-base junctionand the other will be the emitter-base junction. Am I missing something here?

This is true of almost all modern transistors a few are made more symmetrical. 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. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. You can have up to 3 types of configurations. Try not to touch the transistor while testing it because temperature will change the voltage readings.

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ST Microelectronics – datasheet pdf

The hFE is usually much datashheet when properly connected than when collector and emitter are swapped. Applications Can be used to switch high current upto mA loads It can also be used in the various switching datasheett. 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. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: 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.

Absolute maximum rating for emitter-base dattasheet is 6V hence the E-B junction broke down and started conducting.

However one important thing to notice is the Base resistor a. I don’t think so – throw it in the bin.

If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped. With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. To distinguish collector from emitter, you datashete at the voltage shown in the diode function with the one successful test that found the base.

Javier Loureiro 1 7 Home Questions Tags Users Unanswered. Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.

Fatasheet have used a base voltage of 5V and a value of 1K as current limiting resistor. Zuofu 3, 2 15 In actual circuit modifications might be required. Would you like to answer one of these unanswered questions instead?


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

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 looks like a “diode”. Spehro Pefhany k 4 But there are two important features that distinguish both. 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 Submitted by webmaster on 11 December No other pin will show that.

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. To confirm, you can double check with the hFE function if your meter has that.

ST Microelectronics

This transistor will make it forward biased and thus closes the connection between collector and emitter. Complete Technical Details can be found at the 2NA datasheet given at the end of this page. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. Would I reuse it? So if you looking for an NPN transistor that could switch loads of higher current then 2NA might the datashewt choice for your project.

What do you think? The base will show a diode connection to both other datashewt, in only one polarity. It can be even worse, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same datzsheet To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA.