Manufacturer | Vce | Ic | PD | fT |
---|---|---|---|---|
ST Microelectronics[12] 2N2222A | 40 V | 800 mA | 500 mW/1.8 W | 300 MHz |
BJT | Thru-hole | Surface-mount | |
---|---|---|---|
TO 18 | SOT23 | SOT223 | |
NPN | 2N2222 | MMBT2222 | PZT2222A |
PNP | 2N2907 | MMBT2907 | PZT2907A |
The 2N2222, 2N2905, and 2N3055 devices, for example, which date back to the 1960s but have been improved, are still useful in new designs and are still popular for experimenters.
Typical examples are the well known NPN and PNP industrial and military types, 2N2222 and 2N2907, which have been used for over four decades and are still being used in many designs.
Since its initial product launch by Motorola at the 1962 IRE Convention, the 2N2222 has become the most widely used and universally recognized transistor of all time. Billions of units have been manufactured over the past 45 years and there is continuing high volume annual production.
Learn to keep an eye open for the following transistors, as they're among the most useful, inexpensive, and popular types: PN2222/PN2907 These are general-purpose NPN/PNP transistors that can drive some good amounts of power. They're listed together because they're complementary transistors.
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