OPB821Z

Series:	--
Packaging:	Bulk
Part Status:	Active
Sensing Distance:	0.080" (2.03mm)
Sensing Method:	Transmissive
Output Configuration:	Phototransistor
Current - DC Forward (If) (Max):	50mA
Current - Collector (Ic) (Max):	500µA
Voltage - Collector Emitter Breakdown (Max):	30V
Response Time:	--
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	Module, Slotted
Type:	Unamplified

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Introduction

The OPB821Z is a slot type, transistor output, optical sensor. It is used in a variety of applications where it is necessary to detect objects. The OPB821Z detects objects by emitting and receiving visible or infrared light which is then analyzed by an integrated sensor. It can be used in applications where a precise and accurate detection of a moving object is required.

Applications

The OPB821Z is used in a variety of applications, ranging from consumer electronics to industrial machinery. It can be used for the detection of small moving objects, such as coins in vending machines, keys on computer keyboards, or small items in the manufacturing process. The OPB821Z can also be used for detecting and controlling the position of mechanisms in robotic applications. In addition, it can be used to detect whether a door or window is open or closed.

Working Principle

The working principle of the OPB821Z is relatively simple. When the sensor is activated, it emits a visible or infrared light beam. When an object passes through the beam, the light is interrupted, which signals the sensor to indicate the object’s presence.The sensor contains a light-sensitive element that is composed of two parts: an emitter LED and a detector LED. The emitter LED emits a beam of light. This beam is then detected by the detector LED and its output is measured. This output is then compared to a preset threshold value and if it exceeds it, the sensor will detect the object. In addition, the OPB821Z can be programmed to adjust the threshold value depending on the object’s size, allowing for accurate and reliable detection.

Conclusion

The OPB821Z is a slot type, transistor output, optical sensor that is used to detect objects in a wide range of applications. It works by emitting and receiving visible or infrared light which is then analyzed by an integrated sensor and compared to a preset threshold value. The threshold value can be adjusted to suit the size of the object, allowing for accurate and reliable detection.

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