Adafruit
Bipolar Transistor Kit - 5 x PN2222 NPN and 5 x PN2907 PNP
Transistors are powerful little electronic switches, and we really like these NPN and PNP transistors whenever we need to control medium-power electronics, s...
Transistors are powerful little electronic switches, and we really like these NPN and PNP transistors whenever we need to control medium-power electronics, such as small motors, solenoids, or IR LEDs. We find them so handy we threw together a mix-and-match bag of PN2222 and PN2907! You get 5 x NPN and 5 x PNP, very handy for your class B amplifier, high or low side control, LED strips, what-have-you.
Each transistor is a general purpose amplifier with a standard EBC pinout.
- PN2222 (same pinout as the 2N3904) can switch up to 40V at peak currents of 1A (not continuously, just peak!), with a DC gain of about 100.
- PN2907 can switch up to 60V at peak currents of 600 mA (again, not continuously, just peak!), with a DC gain of about 100.
They're basically your garden-variety bi-polar transistors, and do the job with class!
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
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