Why NPN is preferred than PNP?
The majority charge carriers in an NPN transistor are electrons and the majority carriers in a PNP transistor are holes. The electrons have better mobility than holes. Therefore, NPN transistors are preferred over PNP transistors.
Why NPN transistor is generally preferred in electronic circuits?
A n-p-n transistor has electrons as majority charge carriers whereas the p-n-p transistor has holes as the majority charge carriers. Mobility of electrons is more than hole, so as a result n-p-n transistors are faster than p-n-p that’s why they are preferred.
What is the difference between PNP and NPN configurations?
In a PNP configuration the load is connected between the OSSD output and GND . With an NPN configuration the load is connected between 24 VDC and the OSSD output switching element.
What is the difference between NPN and PNP bipolar transistor?
Bipolar junction transistors can be found either as large numbers as parts of integrated circuits or in discrete components. In PNP transistors, majority charge carriers are holes, whereas in NPN transistors, electrons are the majority charge carriers. But, field effect transistors have only one type of charge carrier.
What is the difference between NPN and PNP proximity sensors?
The PNP and NPN sensors are 3-wire DC devices. The difference is in the type of transistor used in the sensor. The PNP device has 2 power control leads, one connected to the positive one, the other negative. The third thread connects to the load. The PNP and NPN sensors are 3-wire DC devices.
What is the meaning of NPN and PNP?
The NPN and PNP both are the bipolar junction transistor. It is the current controlling devices and mainly used for switching and amplifying the signal. Mostly, the NPN transistor is used in the circuit because in NPN transistor the conduction current is mainly by electrons while in the PNP transistor the conduction current is because of the holes.