PT91-21C/TR7

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Phototransistors are a type of sensors that use light or radiation to detect the presence and movement of objects within its field of view. The PT91-21C/TR7 is a type of phototransistor specifically designed to detect the presence of objects up to 5 m away. It is able to detect both short and long range movements and can detect objects regardless of their size or shape. This makes it ideal for applications such as motion sensing in security systems, proximity sensing in robotics, and environmental monitoring.

The PT91-21C/TR7 operates by emitting a beam of infrared light or radiation into its field of view, and then detecting the reflection of this beam by the objects located within its view. The reflected radiation is then converted into electrical signals that can be monitored and used to determine the presence of objects. When the PT91-21C/TR7 senses an object over 5 m away it sends an output current to the connected circuit.

The PT91-21C/TR7 is an ideal component for a wide range of applications due to its wide range of features. It has been designed to be able to operate in a range of temperatures from -30°C to +50°C and is highly resistant to dust and water ingress. It also has a high tolerance to vibration, low power consumption, and short response time of 1 ms, making it suitable for a wide range of applications. It also has an integrated amplifier for improved signal-to-noise ratio.

In addition to its wide range of features, the PT91-21C/TR7 is also extremely easy to install and maintain. It comes with a simple self-test feature that allows the user to check the operation of the sensor without having to physically touch the device, as well as a self-cleaning function that eliminates the need to manually clean the sensor.

Due to its wide range of features, the PT91-21C/TR7 is suitable for a broad range of applications such as security systems, industrial automation, robotics, and environmental monitoring. It is also compatible with most analog and digital control systems making it a versatile and reliable sensor for many different applications.

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