Looking for a transistor? Find it and more at Jameco Electronics. Browse over 30, products, including Electronic Components, Computer Products. NPN TRANSISTORS. DESCRIPTION: The CENTRAL SEMICONDUCTOR PN, PN series devices are silicon NPN epitaxial planar transistors designed. A Bipolar Transistors – BJT are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for A Bipolar Transistors – BJT.

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2NA Pinout, Features, Equivalent & Datasheet

This transistor like all can be used either as a switch or as an amplifier. Archived from the original on 14 April Javier Loureiro 1 transistpr 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.

But there are two important features that distinguish both. Would I reuse it? Retrieved 26 March 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.

It looks like a “diode”. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. Would you like to answer one of these unanswered questions instead?

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. Other part numbers will have different parameters. Try not to touch the transistor while testing it because temperature trasistor change the voltage readings. Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively. Build your own low-power transmitters: In actual circuit modifications might be required.

With it wired the wrong way round the emitter is more positive than the collector and the base is reverse biased. I am trying to figure out what is going on here. JEDEC registered 222a 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.


The base will show a diode connection to both other pins, in only one polarity. 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 2222aa except for the lower maximum collector current.

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. Complete Technical Details can be found at the 2NA datasheet given at the end of this page.

What do you think? Next Article Timer IC. The situation worsen when all these china fake transistors crowded the whole market, there are no trajsistor at all. The general specifications of the various transiistor are similar, with the biggest difference being the maximum allowable current and power dissipation. It was originally made in the TO metal can as shown in the picture. You can have trsnsistor to 3 types of configurations. It is frequently used as a small-signal transistor, [4] [5] transjstor it remains a small general purpose transistor hransistor of enduring popularity.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. 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.

I have used a ttansistor voltage of 5V and a value of 1K as current limiting resistor. It is used in a variety of analog amplification and switching applications. Wikimedia Commons has media related to 2N Hence the 2N pin-out is sadly not standardized. Learn to keep an eye open for the following transistors, as they’re among the most useful, inexpensive, and popular types: 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.


So if you looking for an NPN transistor that could switch loads of higher current then 2NA might the right choice for your project. Top menu About Us Contact.

Retrieved from ” https: In other projects Wikimedia Commons. You have to try each of the three pins to the two others, with both polarities 6 pairs of tests. The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.

2N2222A –NPN Transistor

Graf and William Sheets The exact specifications depend on the manufacturer, case type, and variation. Single transistors are also available in several different surface mount packages, and a number of manufacturers market surface mount packages that incorporate several 2Ntype transistors in one package as an array of transistors. This is the picture of the datasheet for the pins: The hFE is usually much higher when properly connected than when collector and emitter are swapped. The slightly lower of the two voltages will correspond to the collector-base junctionand the other will be the emitter-base junction.

High frequency and microwave engineering. To make transistpr simple I 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: 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 22222a collector and the emitter with the base floating.