OPB875T51

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Optical Sensors — Photointerrupters — Slot Type — Transistor Output.

OPB875T51 is a type of optical sensor commonly used in applications involving a transistor output. This device is also classified as a slot type photointerrupter. It is available in a wide range of profiles, depending on the operational requirements. OPB875T51 features enhanced light reception and high gain display. The device\'s enhanced optical characteristics make it an ideal choice for applications where the light or signal source must be identified or recognized quickly and accurately.

The operating principle of the OPB875T51 providing a transistor output involves the interruption of light. The device contains both an emitter and a receiver, which are used to emit and detect a light beam. The emitter is usually made up of an LED, while the receiver contains an Input Photo Resistor (IPR). When the object comes in between the emitter and the receiver, the light beam is interrupted which results in an output voltage change. This output voltage is ultimately connected to the transistor, resulting in an On/Off state.

The On/Off state is determined by the IPR current. When IPR current is lower than the reference current, then the output of the OPB875T51 turns off. Conversely, when the IPR current is higher than the reference current, then the device turns on. The reference current is adjusted by the user to limit the magnitude of the output turn-off voltages. This allows the user to make sure the output is reliable and correct.

The OPB875T51 is a switched output sensor, meaning that the output changes state from On to Off when the LED is interrupted. This makes it an ideal choice for applications such as door and window alarm systems, as well as for other detetion/inspection/counting requirements. Also, the devices are designed to detect variations in physical appearance and color, which make them well-suited for fabric inspection applications.

The OPB875T51 is also quite reliable due to its excellent optical performance. The device is able to have excellent stability during temperature changes, with external temperature variations being reflected in a less than 5% variation in the optical output voltage. As a result, these sensors can accurately and reliably detect changes in the environment and detect objects over a wide range of temperatures.

In summary, the OPB875T51 is a slot type photointerrupter that provides a transistor output. This device is widely used in a variety of applications due to its excellent optical performance and reliable output. Its ability to detect variations in color and appearances makes it an ideal choice for fabric inspection applications, as well as for door and window alarm systems. Additionally, its enhanced stability during temperature changes ensures that the output remains reliable and accurate.

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