2N2915A

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	2 NPN (Dual)
Current - Collector (Ic) (Max):	30mA
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	--
Current - Collector Cutoff (Max):	--
DC Current Gain (hFE) (Min) @ Ic, Vce:	60 @ 10µA, 5V
Power - Max:	600mW
Frequency - Transition:	60MHz
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	TO-78-6 Metal Can
Supplier Device Package:	TO-78-6

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2N2915A Application Field and Working PrincipleThe 2N2915A is an array of four identical NPN transistors enclosed in a single package. It is used in a wide variety of amplifier and switching applications, from low-frequency signal amplification to high-frequency pulsed switching. The 2N2915A is a low-cost and easily available device for applications in low-power signal amplification and signal switching.The 2N2915A transistors are arranged in a common-emitter configuration in which the outputs of each transistor are connected to a common output terminal. The common-emitter configuration is the most basic configuration used in signal amplification and switching applications, as it allows signals to be amplified while maintaining input and output signal levels at the same level (i.e., no signal distortion is introduced). The 2N2915A uses NPN-type transistors, which are general-purpose transistors capable of operating at various frequencies. The main advantage of using NPN-type transistors is that they are able to switch currents very quickly, as well as providing high gain (amplification) when operating at low frequencies.In terms of the operation of the transistors, the collector (output) of each transistor is electrically connected to the base (input) of the next transistor in the array. This connection allows for the signal to be amplified as the input current is passed through each transistor in the array, the output current is increased by a factor determined by the gain of each transistor. The gain of each transistor is determined by the size of the collector-emitter junction, which is in turn determined by the voltage applied to the collector-emitter of the transistor.The 2N2915A can be used in a variety of applications, ranging from low-frequency signal amplifiers to high-frequency pulsed switching applications. It is especially useful for driving small loads, such as relays and other switching devices, as the transistors have a relatively low power dissipation and can switch with very low voltage levels. In addition, the device is also capable of providing low-noise amplification due to its low input capacitance and its low output capacitance.In addition to its use in amplifier and switching applications, the 2N2915A can also be used in other applications, such as power regulation circuits, current source and sink circuits, and other types of analog circuits. As with all transistors, the performance of the 2N2915A is also affected by the temperature of the device. Therefore, it is important to ensure that the device is operated within its specified temperature range.Overall, the 2N2915A is a versatile and reliable device for use in a variety of amplifier, switching and analog circuit applications. Its low cost and wide availability make it an ideal choice for those who need an inexpensive and easy-to-find device for signal amplification and signal switching. The device is also capable of providing good performance when operated within its specified temperature range.

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