The 2N3906 transistor is commonly used as a switching device. So if you looking for a PNP transistor that could switch high voltage loads within 0.2A then this 2N3906 transistor might be the right choice for you. This transistor has only a gain value of 300, hence not suitable for amplifier circuits.
It very much similar to the bc557 transistor except for that it has high collector to emitter voltage and hence high voltage loads can be toggled. The 2N3906 is a commonly used PNP transistor. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around 5V. This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (VCE) or Base-Emitter (VBE) could be 40 and 5 V respectively. When this transistor is fully biased then it can allow a maximum of 200mA to flow across the collector and emitter.
To bias a transistor we have to supply current to base pin, this current (IB) should be limited to 5mA. The maximum amount of current that could flow through the Collector pin is 200mA, hence we cannot connect loads that consume more than 200mA using this transistor. This is where a PNP transistor differs from a NPN transistor, a Logic state (blue colour) is used to toggle between Ground and Signal Voltage (Emitter-Base Voltage VBE) as shown belowĢN3906 has a gain value of 110 to 300, this value determines the amplification capacity of the transistor. RCA AV (Audio video) Cables, Adapters & ConvertersĢN3906 is a PNP transistor hence the collector and emitter will be closed (Forward biased) when the base pin is held at ground and will be opened (Reverse biased) when a signal is provided to base pin.Displayport (DP) Cables, Adapters & Converters.Do not operate load above 40V DC, always use a suitable base resistor, confirm the pin configuration before placing the circuit to place it right, do not store of operate in temperature below -55 centigrade and above +150 centigrade. To get good and long term performance with this transistor it is suggested to not operate load more than 200mA.
#2N3906 TRANSISTOR HOW TO#
How to Get Long Term Performance with 2N3906 The emitter-base voltage of the transistor is 5V due to which it can also be used at the output of microcontrollers. On the other hand if you want to use it as a switch then you can drive any load under 200mA with this transistor for example Relays, LEDs, high power transistors etc. Moreover it can be used to amplify any type of small signal. It can also be used as an audio preamplifier or in any other audio related circuit. Moreover the max collector dissipation value, DC current gain value also makes it ideal to use in wide variety of simple audio frequency applications.ĢN3906 can be used in many projects for example it can be used in audio amplifier circuits for general or small amplification requirements. The max collector current of the transistor is 200mA therefore it can be used to drive any load which falls under 200mA or 0.2A. The transistor is manufactured to perform general purpose tasks in electronic circuits hence it can be used for any general purpose requirement in electronic circuits that fall in its max specification values. This is also a famous transistor among hobbyists and students because it has been used in wide variety of electronic hobby and educational projects. Max Storage & Operating temperature Should Be: -55 to +150 CentigradeīC557, 2N2907, BC556, A1015, C945, 2N4403, 9014, BC527, BC558, BC559 (The pin configuration of the equivalent transistors may different from the 2N3906, therefore it is suggested to always confirm the pin configuration of the transistor you are replacing in the circuit.ĢN3906 Transistor Explained / Description:ĢN3906 is a widely used transistor.Minimum & Maximum DC Current Gain (h FE): 100 – 300.Max Transition Frequency (fT): 2 50 MHz.Max Collector Dissipation (Pc): 625 miliWatt.Max Collector-Emitter Voltage (V CE): 40V.Advertisements Features / technical specifications:
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