SFH 2500 FA-Z Sensors, Transducers

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The SFH 2500 FA-Z is an optical sensor from Osram Opto Semiconductors, used to detect the intensity of light. It is a silicon photodiode, meaning it is a photo component that converts light into electrical current, with the SFH 2500 FA-Z able to detect light up to 10 microwatts. This makes the SFH 2500 FA-Z an ideal choice for applications such as measuring the brightness of the environment or in medical devices, as well as distance and presence sensing.

Applications

The SFH 2500 FA-Z\'s most common application is as an ambient light sensor. In this application, the SFH 2500 FA-Z is used to detect the ambient light intensity and allow for devices to make adjustments to their settings and brightness based on the detected light intensity. Other applications can include distance and presence sensing, where the SFH 2500 FA-Z can detect changes in the intensity of light and can then interpret that information to alert the user about a distance or presence that has been crossed. This type of sensing can be used in automatic door openers or security systems, depending on what level of light is detected.

Working Principle

The SFH 2500 FA-Z works by collecting photons from the environment. Whenever a photon hits the surface of the device, it is converted into an electrical current. This current is then converted into a voltage by the device, which can then be detected by other components within the system. For this device, the active layer size is 1.2mm² and the device can detect light up to 10 microwatts.

The SFH 2500 FA-Z also features built-in temperature compensation, which ensures that the sensitivity of the device remains consistent across different temperatures, providing more accurate readings and greater longevity of the device. Additionally, the SFH 2500 FA-Z is a low-power device, meaning it can be used in battery-powered systems and similar applications.

Conclusion

The SFH 2500 FA-Z is a versatile and reliable optical sensor with many applications. It is designed for low-power consumption and features temperature compensation, allowing for more accurate readings across varying temperatures. It is one of the more popular photodiodes on the market and is a great choice for those looking for an easy and reliable way to measure light intensity.

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