*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information. The company was acquired by ON Semiconductor in 2016 and its products and technologies continue to be developed and sold under the ON Semiconductor brand. The company was known for its innovation in the development of the first commercial transistor and for its contributions to the advancement of the integrated circuit technology.įairchild became a leading supplier of power semiconductors, analog and mixed-signal integrated circuits, and other semiconductor products. BC337: This is a general-purpose NPN transistor that has higher current gain and higher maximum voltage ratings than the 2N3904.Ĥ.Fairchild Semiconductor was a pioneering semiconductor company that was founded in the late 1950s. BC547: This is another general-purpose NPN transistorģ. It has a maximum collector current of 600mA and a maximum. PN2222: This is a general-purpose NPN transistorĢ. KSP2222A: This is another NPN bipolar junction transistor with a similar package and pinout as 2N3904. Limited frequency response at high currents: They may have limited frequency response at high currents, which may affect performance in certain applications.ġ. Sensitivity to ESD: Sensitive to electrostatic discharge (ESD), which can damage transistors.Ĥ. Limited temperature range: Performance may be affected at high temperatures.ģ. I keep a hundred or so of each type on hand to play with. They have good gain and frequency characteristics for most analog or digital projects, but most significant to me: they are dirt cheap. Low maximum voltage and current rating: limited use in high power applications.Ģ. The 2N3904 (NPN) and 2N3906 (PNP) are my favorite go-to small-signal transistors. Storage temperature: Tstg = -55 to +150 ☌ Disadvantage:ġ. Collector Current – Continuous : IC = 200 mAĥ. It is also used in switching circuits, where it can turn on and off low to medium-current loads.ġ. The 2N3904 is commonly used in amplifier circuits, where it can provide high voltage gain and low noise performance. It has a transition frequency (ft) of 300MHz and a maximum power dissipation of 625mW. It has a maximum voltage rating of 40V and a maximum current rating of 200mA. The 2N3904 is a small signal NPN bipolar junction transistor (BJT) that is commonly used in electronic circuits due to its low cost and wide availability.
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