CNW136S

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Optoisolators are a type of electrical component that use light to isolate two circuits from each other. The CNW136S is one such device and it offers excellent functional insulation. In this article, we will look at the application field and working principle of the CNW136S.

Application field

The CNW136S is a photovoltaic output transistor optoisolator. The device uses an infrared LED as the input and a semiconductor detector chip as the output. This type of optoisolator is capable of providing up to 1500Vrms of input-to-output isolation. This high level of isolation prevents common-mode noise from entering the output circuit.

The CNW136S is widely used in applications that require reliable signal isolation and noise suppression. These include power electronics applications, factory automation, industrial motor controls, medical instruments, instrumentation and test gear, and more.

Working principle

The working principle of the CNW136S is based on the photoelectric effect. The optoisolator contains an infrared LED and a semiconductor detector chip. When the LED is turned on, it emits light, which is detected by the semiconductor chip. This in turn closes a circuit and activates a transistor on the output side of the optoisolator. This generates an output voltage that is proportional to the input voltage.

The CNW136S optoisolator also features an internal protection function. This ensures that the device is able to withstand high peak currents without damage. The device also has an insulation dielectric strength of 1500Vrms, which ensures a high level of common-mode noise suppression.

Conclusion

The CNW136S is a photovoltaic output transistor optoisolator that is capable of providing reliable signal isolation and excellent noise suppression. It is widely used in a variety of applications due to its high level of insulation and its ability to withstand high peak currents. The device works based on the photoelectric effect and is able to offer an insulation dielectric strength of 1500Vrms.

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