What Is The Difference Between The PNP And NPN Outputs Of The Hall Switch?

时间： 2024-07-17 来源：AHNJ AH Official Website

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Hall switches,Hall switch sensor,non-contact switch,unipolar Hall switch IC

With the rapid development of science and technology, the application of Hall switches is more and more extensive. Hall elements refer to the output of trigger signals according to the magnetic field.

Hall switches often have NPN and PNP outputs, and many people confuse the two output concepts. Now let's explain the two differences in detail.

1. NPN (Normally Open) means that when the Hall sensor has no magnetic field, it outputs a low level, and when there is a magnetic field, it outputs a high level. NPN (normally closed) means that the Hall switch sensor outputs a high level when there is no magnetic field, and outputs a low level when there is a magnetic field.

2. PNP (normally open). When the Hall switch sensor has no magnetic field, it outputs a high level. When there is a magnetic field, it outputs a low level. PNP (normally closed), the Hall switch sensor outputs a low level when there is no magnetic field, and outputs a high level when there is a magnetic field.

The Hall switch is a non-contact switch with no delay, jitter, long life, and high performance.

Several characteristics of the Hall switch:

1. high response frequency

2. repeated positioning accuracy is high

3. the output waveform is pure, stable performance

4. with working status indicator

5. stable, can work reliably in the harsh environment of oil, dust, vibration, and temperature difference

6. a variety of output methods

7. Long service life and low cost.

The products of “Nanjing AH Electronic Science & Technology Co., Ltd ” include AH series unipolar Hall switch IC, AH series bipolar Hall IC, AH series latch Hall switch IC, AH series linear Hall IC, WG series zero power consumption magnetic sensor, and all kinds of customized products etc.

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