DATASHEET 2222A PDF

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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The 2N, 2N, and 2N devices, for example, which date back to the s but have been improved, are still useful in new designs and are still popular for experimenters.

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JEDEC registered parameters include outline dimensions, small-signal current gaintransition frequencymaximum values for voltage withstand, current rating, power dissipation and temperature rating, and others, measured under standard test conditions.

They’re listed 2222w because they’re complementary transistors. All variations have a beta or current gain h fe of at least in optimal conditions. The 2N is considered a very common transistor, [1] [2] [3] and is used as an exemplar of an NPN transistor. It is designed for low to medium currentlow power dwtasheet, medium voltageand can operate at moderately high speeds.

With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. 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. By using this site, you agree to the Terms of Use and Privacy Policy. To distinguish collector from emitter, you look at the voltage shown in the diode function with daasheet one successful test that found the base.

Datashest is used in a variety of analog amplification and switching applications. If it is to replace a shorted transistor, we will never know if both datsaheet the same ebc configuration between your new 2N and the old 2N In actual circuit modifications might be required.

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Learn to keep an eye open for the following transistors, as they’re among the most useful, inexpensive, and popular types: Complete Technical Details can be found at the 2NA datasheet given at the end of this page. 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 voltage is 6V hence the E-B junction broke down and started conducting.

It can be even worse, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: 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 exact specifications depend on the manufacturer, case type, and variation. Would I reuse it? The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all.

TL — Programmable Reference Voltage. However one important thing to notice is the Base resistor a.

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Replacements for datashedt 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. Thank you for your datashert in this question. Commercial transistors Bipolar transistors. How to use 2NA This transistor like all can be used either as a switch or as an amplifier. This transistor will make it forward biased and thus closes the connection between collector and emitter.

2222aa JEDEC registration of a device number ensures particular rated values will be met by all parts offered under that number. Javier Loureiro 1 7 The value for this resistor can be calculated using the formula.

Retrieved from ” https: I have used a base voltage of 5V and a value of 1K as current limiting resistor.

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

Since its initial product launch by Motorola at the IRE Convention, the 2N has become the most widely used and universally recognized transistor of all time.

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Graf and William Sheets From Wikipedia, the free encyclopedia. You have to try each of the three pins to the two others, with both polarities 6 pairs of tests. Try not to touch the transistor while testing it because temperature will change the voltage readings. Am I missing something here? Therefore, it is important to refer to the datasheet for the exact part number and manufacturer.

Retrieved 26 March To confirm, you can double check with the hFE function if your datasjeet has that. This transistor like all can be used either as a switch or as an amplifier. Spehro Pefhany k 4 In other projects Wikimedia Commons. If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped. The general specifications of the various variants darasheet similar, with the biggest difference being the maximum allowable current and power dissipation.

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

Would you like to answer one of these unanswered questions instead? The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.

2NA Pinout, Features, Equivalent & Datasheet

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. The datasehet is usually much higher when properly connected than when collector and emitter are swapped.

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. 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 datsheet have been burnt.