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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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 dztasheet the lower maximum collector current. Complete Technical Details can be found at the 2NA datasheet given at the end of this page.

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2NA Pinout, Features, Equivalent & Datasheet

Would I reuse it? Retrieved from ” https: Commercial transistors Bipolar transistors.

Graf and William Sheets It is frequently used as a small-signal transistor, [4] [5] and it remains a small general purpose transistor [6] of enduring popularity. Thank you for your interest in this question. 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.

This is true of almost all modern transistors a few are made more symmetrical. The BC is a low voltage, low current, general-purpose switching transistor in a TO package.

You have to try each of the three pins to the two others, with both polarities 6 pairs of tests. Home Questions Tags Users Unanswered. I datadheet a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: Archived from the original on 14 April The base will show a diode connection to both other pins, in only one polarity.


ST Microelectronics

To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA. Junkbots, bugbots, and bots on wheels: No other pin will show that. 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.

How to use 2NA This transistor like all can be used either as a switch or as an amplifier. The general specifications of the various variants are similar, with the biggest difference being the maximum allowable current and power dissipation. High frequency and microwave engineering. You can have up to 3 types of configurations. Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting.

ST Microelectronics – datasheet pdf

The JEDEC registration of a device number ensures particular rated values will be met by all parts offered under that number.

The slightly lower of the two voltages will correspond to the collector-base junctionand the other will be the emitter-base junction.

It is designed for low to medium currentlow powermedium voltageand can operate at moderately high speeds. I am trying to figure out what is going on here.

The 2N is considered a very common transistor, [1] [2] [3] and is used as an exemplar of an NPN transistor. Wikimedia Commons has media related to 2N With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

I have used a base voltage of 5V and a value of 1K as current limiting resistor.

JEDEC registered parameters include outline dimensions, small-signal current gaintransition frequency datassheet, maximum values for voltage withstand, current rating, power dissipation and temperature rating, and datashfet, measured under standard test conditions. Would you like to answer one of 2222q unanswered questions instead? Am I missing something here? Try not to touch the transistor while testing it because temperature will change the voltage readings. Learn to keep an eye open for the following transistors, as they’re among the most useful, inexpensive, and popular types: This is the picture of the datasheet for datashwet pins: Therefore, it is important to refer to the datasheet for the exact part number and manufacturer.


In other projects Wikimedia Commons. It is used in a variety of analog amplification and switching applications. This transistor will make it forward biased and thus closes the connection between collector and emitter. When base current is removed the transistor becomes fully off, this stage is called 2222a the Cut-off Region and the Base Emitter voltage could be around mV.

They’re listed together because they’re complementary transistors. Hence the 2N pin-out is sadly not standardized.

Applications Can be used to switch high current upto mA loads It can also be used in the various switching applications. What do you think? Retrieved 26 March The vatasheet is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.

The 2N exhibits its forward gain beta peak at a lower current than the 2N, and is useful in amplifier applications with reduced I ce. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. This is the pic of the transistor, as I understand that it should work, but it doesn’t it is always ‘on’ with datasgeet between the collector and the emitter with the base floating.

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