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What is reverse saturation current in NPN transistor?
In a PNP transistor, the reverse saturation current (ICBO) will comprises of the current due to the holes passing through the collector junction from the base to collector region (IhCO) and the current due to the electrons which are passing through the collector junction in the opposite direction (IeCO).
What is BC547B transistor?
The BC547B is a NPN Transistor, suitable for use in driver and output stages of audio amplifier, low noise input stages of tape recorders, Hi-Fi amplifiers and signal processing circuits of television receivers. 250°C/W Junction to Ambient Thermal Resistance.
What is the saturation current in a transistor?
In practice when the transistor is turned “OFF”, small leakage currents flow through the transistor and when fully “ON” the device has a low resistance value causing a small saturation voltage ( VCE ) across it. When maximum Collector current flows the transistor is said to be Saturated.
Can I use 2n2222 instead of BC547?
You can update the circuit at anytime, you can replace the 2n2222 NPN transistors with the BC547 and it will have no negative effect on the project.
What is the reverse saturation current in PN junction?
In a PN junction diode, the reverse saturation current is due to the diffusive flow of minority electrons from the p-side to the n-side and the minority holes from the n-side to the p-side. it is a current which is produced due to the small reverse voltage when pn junction diode is reverse biased.
Which transistor can be used in place of 2N2222?
The 2N2907 is an equally popular PNP transistor complementary to the 2N2222. The 2N3904 is an NPN transistor that can only switch one-third the current of the 2N2222 but has otherwise similar characteristics.
What are the features of a BC547 transistor?
BC547 Transistor Features. Bi-Polar NPN Transistor; DC Current Gain (h FE) is 800 maximum; Continuous Collector current (I C) is 100mA; Emitter Base Voltage (V BE) is 6V; Base Current(I B) is 5mA maximum; Available in To-92 Package; Note: Complete Technical Details can be found at the datasheet give at the end of this page.
What is the saturation voltage of a NPN transistor?
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 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 660 mV.
What is the gain value of the BC547?
BC547 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. 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.
What causes the reverse saturation current in a PN junction diode?
In a PN junction diode, the reverse saturation current is due to the diffusive flow of minority electrons from the p-side to the n-side and the minority holes from the n-side to the p-side.