OPB852A1

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

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OPB852A1 Application Field and Working Principle

Optical sensors play a fundamental role in various industries and applications. Among them, photointerrupters are one of the most popular and widely used. In particular, Slot Type Transistor Output (OptoTran) photointerrupters such as the OPB852A1 are designed to detect objects interrupting a light beam in dark and semi-dark environments. This article will provide an overview of the OPB852A1\'s application field and working principle.

Application Field

The OPB852A1 photointerrupter is designed to detect objects that interrupt a light beam between its transmitter (LED) and receiver (phototransistor). This type of photointerrupter is commonly used in applications such as industrial automation, consumer electronics, and automated door control systems. In particular, the OPB852A1 provides reliable object detection performance in dark and semi-dark environments due to its high optical coupling capabilities and narrow slot width which works well for detecting small objects. Additionally, its built-in transistor output can be used to detect objects without the need of additional circuitry, making it easier and more cost effective to use in even the most demanding applications.

Working Principle

The OPB852A1\'s working principle is based on the principle of light interruption. When an object interrupts the light beam between its transmitter and receiver, the output signal switches from one state to the other.The device contains a light emitting element (LED) and a phototransistor. When the light beam is uninterrupted, the phototransistor does not receive any light and its collector voltage remains low. However, when an object interrupts the light beam, the phototransistor\'s collector voltage increases and the photointerrupter\'s output switches from one state to the other. The OPB852A1 features a built-in transistor output which makes it easier and more cost effective to use in applications requiring object detection without additional circuitry.

Conclusion

The OPB852A1 Slot Type Transistor Output (OptoTran) photointerrupter is designed to detect objects interrupting a light beam in dark and semi-dark environments. This type of photointerrupter is commonly used in applications such as industrial automation, consumer electronics, and automated door control systems. The OPB852A1\'s working principle is based on the principle of light interruption and its built-in transistor output makes it easier and more cost effective to use in object detection applications without additional circuitry.

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