What does PNP mean transistor?

The term ‘PNP’ stands for positive, negative, positive, and also known as sourcing. The PNP transistor is a BJT; in this transistor, the letter ‘P’ specifies the polarity of the voltage necessary for the emitter terminal.

How can a PNP transistor be used in a circuit?

Example: PNP Transistor Circuit

1. Step 1: The Emitter. First of all, to turn on the PNP transistor, you need the voltage on the base to be lower than the emitter.
2. Step 2: What You Want To Control. When the transistor turns on, the current can flow from the emitter to the collector.
3. Step 3: The Transistor Input.

Is PNP sinking or sourcing?

PNP sensors are sometimes called “sourcing sensors” because they source positive power to the output. NPN sensors are sometime called “sinking sensors” because they sink ground to the output. The term “load” identifies the device the sensor powers.

Is PNP and NPN same?

As they are normally referred, PNP and NPN sensors are both supplied with positive and negative power leads, then produce a signal to indicate an “on” state. PNP sensors produce a positive output to your industrial controls input, while NPN sensors produce a negative signal during an “on” state.

What is the main function of a PNP transistor?

They are used majorly as switches.

They are used in amplification circuits.

They are used in darlington (a multi-transistor configuration) pair circuits.

Recently,they have also been used for robotics.

PNP transistors are used to control the current flow is electric motors.

Which is better PNP or NPN transistor?

A npn transistor has electrons as majority charge carriers whereas the pnp transistor has holes as majority charge carrier. The mobility of electrons is better than mobility of holes.

Can you replace a NPN transistor by a PNP transistor?

Generally, the PNP transistor can replace NPN transistors in most electronic circuits, the only difference is the polarities of the voltages, and the directions of the current flow. PNP transistors can also be used as switching devices and an example of a PNP transistor switch is shown below.

How to identify a PNP or NPN transistor?

Keep the Multimeter in the Diode mode.

Keep the positive probe to the pin-1 (Emitter) of the transistor.

Touch the negative probe to the center pin (Base).

Similarly touch the negative probe to the center pin (Base) with respect to the pin-3 (collector).

It will ensure that it is a PNP transistor.