This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (V CE) or Base-Emitter (V BE) could be 200 and 900 mV respectively. When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter. To bias a transistor we have to supply current to base pin, this current (I B) should be limited to 5mA. The maximum amount of current that could flow through the Collector pin is 100mA, hence we cannot connect loads that consume more than 100mA using this transistor. Note: Complete Technical Details can be found at the BC547 datasheet given at the end of this page.īC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200īC547 transistor has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. Continuous Collector current (I C) is 100mA.This transistor is not suitable for amplifier circuits because it has only a gain value of 300.BC547 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. the only difference is that it has a high collector to emitter voltage. The 2N3906 is the most commonly used PNP transistor. Always use a suitable base resistor and confirm the pin configuration before placing the circuit to place it right, must keep the temperature range -55 centigrade and above +150 centigrade. 2N3906 Pinout must be checked before use. How to Get Long Term Performance with 2N3906įor the good performance of the transistor, it is suggested to not operate load more than 200mA. Used in siren or dual Led or Lamp flasher.Inverter and converter circuits use this PNP transistor.Mostly used in the various switching applications.It is Used to switch high voltage low current loads.The 2N3906 transistor might be the right choice for you if you are looking for PNP transistor that could switch high voltage loads within 0.2A Applications It is not suitable for amplifier circuits because of the gain value of only 300. It is very similar to the bc557 transistor only difference is that it has a high collector to emitter voltage. The 2N3906 is a widely used PNP(Positive-Negative-Positive) transistor. NPN Complementary of 2N3906 is 2N3904 Where to use 2N3906 Current at the emitter pin is the sum of current at the base and collector side.PNP will only conduct when the voltage at the collector side is much smaller than the voltage at the emitter side.PNP transistor remain normally OFF, but a small amount of negative current on base can turn it ON and helps in flowing large emitter-collector current. The circuit symbol of 2N306 is shown in the figure below. 2N3906 Pinout description, features, equivalent are given below in detail. It comes in a plastic TO-92 compact casing. It is designed for low electric current and power and medium voltage, and its operating speed is very high. The 2N3906 is a commonly used PNP (Positive-negative-Positive) bipolar junction transistor used for general purpose low-power amplifying and switching applications.
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