OPB891P51

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Sensing Distance:	0.125" (3.18mm)
Sensing Method:	Transmissive
Output Configuration:	Phototransistor
Current - DC Forward (If) (Max):	50mA
Current - Collector (Ic) (Max):	30mA
Voltage - Collector Emitter Breakdown (Max):	30V
Response Time:	--
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Chassis Mount
Package / Case:	Module, Pre-Wired
Type:	Unamplified

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OPB891P51 Optical Sensor - Photointerrupter - Slot Type - Transistor Output: Application Field and Working Principle

Optical sensors are useful tools in many industries, from biomedical to robotics, and include many different types and categories. One type of optical sensor is a photointerrupter – slot type – transistor output, such as the OPB891P51. This particular sensor, manufactured by the company IDEC, is a part of their Optical Sensor Switch series. The product has been designed for a wide range of applications in many different industries, including robotics, automotive, medical device, home appliance, and machine control.The OPB891P51 is an analog photointerrupter/photoelectric sensor with a sensing area of approximately 6mm in length and width. It has a high-sensitivity broadband Infrared LED as the light source, and a slot-shaped photo-sensitive element which forms a switch-state of "ON" or "OFF." The sensing area can be adjusted with the aid of a potentiometer, using the slot shape inside. The sensing state is the result of the slot shape, which deflects the beam of light from the LED and blocks it. The LED can be turned on and off with the aid of a power switch, and turned on/off with a TTL level signal or with a sliding button. The OPB891P51 uses a small block of plastic with a slot in it to detect a beam of light from the LED. As light passes through the slot, it is blocked, and a transistor output is triggered. This output is used to communicate a "switch" state between two states, "ON" and "OFF." The OPB891P51 is also available with a latch output, which will remain in the "ON" state until the switch is manually reset. The OPB891P51 has a wide range of operating temperatures, from -10°C to 85°C, and is vibration- and shock-resistant. It is available in both surface-mount and through-hole packages, making it suitable for a variety of applications. The OPB891P51 has a wide range of applications in various fields. It can be used as a position, presence, and/or proximity sensor in robotics. It can be used in medical device applications, such as for patient monitoring. It can be used in home appliance applications, for detecting the presence of an object in the slot. It can also be used in industrial machine control applications, such as for monitoring the position of a machine component. The OPB891P51 is a versatile optical sensor, providing a reliable and cost-effective solution in a variety of fields. With its low-profile orientation, adjustable sensing area and high sensitivity, it is a reliable and effective photointerrupter/photoelectric sensor. Its features, such as wide temperature range, shock and vibration resistance, and surface-mount and through-hole packages, make it an ideal choice for many applications.

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