2222A PDF

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Looking for a transistor? Find it and more at Jameco Electronics. Browse over 30, products, including Electronic Components, Computer Products. Price Rs , 2N, A NPN Transistor, bjt, MPSA, Buy Lowest Price in India, TO Metal Can Package Device Types 2NA 2NA See the data sheet for 2NA/ 2NA.

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This is the pic of the transistor, as I understand that it should work, 2222a it doesn’t it is always ‘on’ with 12V between the collector and the emitter with the base floating.

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Am I missing something here? No other pin will show that. Views Read Edit View history. For the time being: Junkbots, bugbots, and bots on wheels: It is used in a variety of analog amplification and switching applications. Other part numbers will have different parameters.

These properties are important when dealing with anything other than very low power levels. JEDEC registered parameters include outline dimensions, small-signal current gaintransition frequencymaximum values for voltage withstand, current rating, power dissipation 222a temperature rating, and others, measured under standard test conditions.

You would want to post or link a schematic so that we know what you are talking about.

High frequency and microwave engineering. I am trying to figure out what is going on here. The JEDEC registration of a device number ensures particular rated values will be met by all 2222aa offered under that number.


2N 2221A/ 2222A

By using our site, you 222a2 that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Replacements for the 2N are commonly available now in 22222a cheaper TO packaging, where it is 222a as the PN or P2N, which has similar specifications except for the lower maximum collector current. Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively.

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. Is it really necessary to use A transistor to make mini tesla coil? Home Questions Tags Users Unanswered.

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 222a still popular for experimenters. Wikimedia Commons has media related to 2N The general specifications of the various variants are similar, with the biggest difference being the maximum allowable current and power dissipation.

Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. This is 222a of almost all modern transistors a few are made more symmetrical. It has higher current and voltage ratings and lower saturation voltage than the other types you mentioned. It can be even worse, since the On Semi PN has the conventional pinout, despite being the same manufacturer and mostly same specifications: The 2N exhibits its forward gain beta peak at a lower current than the 2N, and 222a useful in amplifier applications with reduced I ce.


Retrieved 26 2222a To confirm, you can double check with the hFE function if your meter has that. The 2na is rated at.

Zuofu 3, 2 222a Here its collector current is probably a lot more than only 38mA. Would you like to answer one of these unanswered questions instead? Try 2222 to touch the transistor while testing it because temperature will change the voltage readings. I don’t think so – throw it in the bin. 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.

The base will show a diode connection to both other pins, in 2222 one polarity. What do you think? 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.

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The situation worsen when all these china fake transistors 222a the whole market, there are no standardization at all. Dual-channel DMM puts two 7. Fuse Amperage Determination Circuit Would I reuse it? The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.