OPB871T55

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Optical sensors are designed to detect objects by using light sources and receivers. Photointerrupters are a type of optical sensor that use a light source and receiver to detect the presence of an object that interrupts the beam or slot generated by the emitter. The OPB871T55 is a slot type photointerrupter with a transistor output. This allows it to be used in applications such as door open/close, motor start/stop, and material level sensing.

The OPB871T55 consists of an infrared LED and an NPN silicon photo transistor. The LED and photo transistor within this photointerrupter form an opto-coupler, allowing a connection between the two which is isolated from other circuitry. This isolator ensures that signals can be reliably sent over a long distance.

The OPB871T55 can only be used to detect an interruption in its light slot. It typically has a 4mm sensing length and a width of 0.5mm. This width and length can be adjusted depending on the application. When a slot is created, a light will be emitted from the LED that will detect any object that passes or interrupts the light.

The OPB871T55 can detect objects such as motion, presence, liquid levels, light signals, and switches. The photointerrupter will then send a signal to the transistor output which will be used to detect an object. This signal can then be used to activate certain functions or cause an interruption in other processes, depending on the application.

The OPB871T55 is ideally suited for use in material level sensing applications. In these applications, the photointerrupter is mounted within the material that needs to be detected. The LED emits a light which when an interruption is detected, will be sent to the transistor output. The transistor output can then be used to activate certain processes or interrupt other operations.

The OPB871T55 is also well suited for door open/close sensors and motor start/stop applications. For door open/close sensors, the OPB871T55 can be mounted on the door frame to detect when the door is opened or closed. When the door is opened, it will interrupt the light beam emitted from the LED, sending a signal to the transistor output which will alert the system. For motor start/stop applications, the OPB871T55 can be mounted on the motor’s control panel to detect when the motor starts or stops. The LED emits a light which will detect any interruption to the light beam, sending a signal to the transistor output that will alert the system when the motor starts or stops.

The OPB871T55 is a reliable and versatile slot type photointerrupter with a transistor output. It is well suited for applications such as door open/close sensors, motor start/stop, and material level sensing. This photointerrupter is designed to detect any interruption in its light slot and send a signal to the transistor output which can be used to activate certain functions or interrupt other processes depending on the application.

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