OPB848

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Optical sensors are widely used in automation, industrial robotics, assembly machines, home automation, and other related fields. Photointerrupters are one type of optical sensors that include specifically designed devices to interrupt a beam of light. Slot type photointerrupters use a notch in the optical path to detect when light is interrupted. Transistor Output (OPB848)photointerrupters are one type of slot type photointerrupter and are designed to provide an electrical output signal when the light is interrupted.

The OPB848 is a high performance, infrared (IR) Slot Type Photointerrupter with a transistor output circuit. It features a high speed response time (75+/- 10 µs) and a broad spectral response to meet the performance requirements of high speed systems. The OPB848 is designed to provide accurate occupancy sensing of repetitive moving objects. It is also used in automotive, industrial and medical applications to sense objects, detect large open spaces, or verify package presence.

The OPB848 consists of an emitter and a detector mounted in a T0-5 package. The emitter, referred to as the LED (Light-Emitting Diode), is placed on one side of a narrow slot, and the detector is placed on the other side. When the LED and detector are both exposed to the same amount of light, the output of the photointerrupter is high. However, when an object interrupts the light path between the LED and detector, the output begins to drop. The narrow slot eliminates any gradual or gradual-transition effects so the output quickly drops to a low signal when light is interrupted and returns back to a high signal when the object is removed.

The transistor output of the OPB848 is normally open, which means that the output signal is low whenever the photointerrupter is in a dark condition. However, the output signal will be high whenever the LED and detector are exposed to the same level of light. The output signal can also be configured to invert the state of the output.

The OPB848 is designed to operate in a wide range of temperatures from -40°C to +100°C, making it suitable for use in applications that require extreme temperature ranges. Additionally, the OPB848 is able to withstand extreme input power thanks to its built-in protection against short circuits and overvoltages. The device is fully RoHS compliant and approved by the UL operating temperature range and is resistant to ESD.

The OPB848 is an ideal option for applications that require a reliable and cost-effective solution for sensing the presence of objects or large areas. It is also ideal for high-speed systems that require fast response times and accurate occupancy sensing. It is compatible with a wide variety of interfaces, including TTL and PNP currents, making it a great choice for applications that require a variety of inputs and outputs.

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