SD019-141-411-B Sensors, Transducers

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Optical sensors are electronic optical devices used to detect the presence of a variety of light signals, including infrared, ultraviolet, visible light, and other wavelengths. Photodiodes are a type of optical sensor, and they are highly sensitive to light and enable precise, accurate measurements of light intensity. The SD019-141-411-B is a type of semiconductor photodiode commonly used in a variety of applications, and this article provides an overview of its application field and working principle.

The SD019-141-411-B is an ultraviolet (UV) photodiode that has a peak sensitivity at 350nm on the UV-A spectrum. It is designed to detect UV light from low-intensity sources such as UV LEDs, and it is capable of detecting down to 0.2mW/m2 of UV light. The SD019-141-411-B photodiode is used in a range of applications, including:

• UV LED Testing and Inspection
• UV Germicidal Irradiation (UVGI) Monitoring
• UV Leak Detection
• UV Exposure Meters

The working principle of the SD019-141-411-B is based on the physical phenomenon of photoconductivity. When the photodiode is exposed to UV light, a current flows through it as the electrons are swept from the valence band to the conduction band. This current is proportional to the intensity of the light, and can be used to measure the light intensity and calculate the UV index. The photodiode can then be used as the basis for a wide range of control, monitoring, and measurement applications.

In addition to its application field and working principle, the SD019-141-411-B also has a number of features that make it a desirable choice for many users. It has an extremely low dark current, meaning that it is able to detect very low levels of UV light without any background noise. It also has a wide range of operating temperatures and a good response time, making it suitable for a range of applications. Additionally, the SD019-141-411-B has a compact size and is available in an ultra small, 5mm² package, making it very easy to integrate into existing systems.

In conclusion, the SD019-141-411-B is a versatile, high-performance UV photodiode that is designed for use in a variety of applications, including UV LED testing and inspection, UVGI monitoring, UV leak detection, and UV exposure meters. It is highly sensitive to UV light, has a low dark current, a wide range of operating temperatures, and is available in a small, compact package. As such, it is an ideal choice for many users requiring an accurate, reliable UV sensor.

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