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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The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all. Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.
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. How to use 2NA This transistor like all can be used either as a switch or dataseet an amplifier. 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 transistor like all ratasheet be used either as a switch or as an amplifier. Thank you for your interest in this question. Hence the 2N pin-out is sadly not standardized.
I have used a daatsheet voltage of 5V and a value of 1K as current limiting resistor. As the name suggests this resistor will limit the current flowing through the transistor to prevent it from damaging.
The slightly lower of the two voltages will correspond to the collector-base junctionand the other will be the emitter-base junction.
PN2222A . Datasheet. Equivalente. Reemplazo. Hoja de especificaciones. Principales características
When base current is removed the transistor datashert fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around mV. Spehro Pefhany k 4 Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting.
The value for this resistor can be calculated using the formula.
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. It looks like a “diode”. Zuofu 3, 2 15 But there are two important features that distinguish both. TL — Programmable Reference Voltage. To make things simple Datasheett have shown a simplified circuit to make a transistor as switch.
I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: To distinguish collector from emitter, you look 22222a the voltage shown in the diode function with the one successful test that found the datasjeet.
You can have datashete to 3 types of configurations. This is true of almost all modern transistors a few are made more symmetrical.
Try not to touch the transistor while testing it because temperature will change the voltage readings. 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 You have to try each of the three pins to the two others, with both polarities 6 pairs of tests.
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When I apply a voltage between the pin datasehet to 3, as soon as the voltage rises over about 8V, the current starts to flow, even when the base has datssheet voltage pulled down or floatingand the transistors gets pretty hot. However one important thing to notice is the Base resistor a.
2NA Pinout, Features, Equivalent & Datasheet
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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If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped. I am trying to figure out what is going on here. 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.
This transistor will make it forward biased and thus closes the connection between collector and emitter. To bias a transistor we have to supply current to base pin, this current I B 22222a be limited to 5mA.
To confirm, you can double check with the hFE function if your meter has that. The Base-Emitter voltage of this transistor is 6V so you just have to supply this voltage across the base and emitter of the daatasheet to induce a base current into the transistor. With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. Javier Loureiro 1 7 Would I reuse it?