Series:	--
Packaging:	Bulk
Part Status:	Active
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:	PCB Mount
Type:	Unamplified

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Introduction

The OPB892T55Z is part of a family of optical sensors produced by the Optek Technology company. It is an infrared photointerrupter that detects the interruption of an infrared light beam within its housing. This type of sensor is also referred to as slot type, due to its aluminum alloy housing that is cut into two slots. Additionally, it has a transistor output. As a typical application, the OPB892T55Z is used in motor control systems for on/off switching or for general purpose sensing. This sensor has a wide range of applications in the automation, industrial, and consumer markets which include addressing, rhythm detection, paper detection, power control, door control, and position sensing.

Sensor Technical Specifications

The OPB892T55Z infrared photointerrupter offers a number of innovative features and benefits that enable it to excel in the automation, industrial, and consumer markets. It is a highly durable and reliable device, rated for up to 100V input voltage and 60mA output current. In addition, it offers built-in Control Logic capabilities (hardware or software), which allows the user to easily configure the operating parameters of the sensor. The following table outlines the basic technical specifications of the OPB892T55Z. Table 1: OPB892T55Z Technical Specifications
|Feature |Description | |------- |------------ | |Optical Source |Visible Red Light Emitting Diode (LED)| |Beam Diameter |1.4mm | |Wavelength |660nm ||Optical Power| 2.2mW/sr ||Operating Voltage| 100V |Operating Current| 60mA | |Operating Temperature| -40 to +85°C|

Working Principle

The OPB892T55Z photointerrupter works by emitting a pulsed infrared light beam from the diode over a light path of a specific distance. This light path is blocked when an object (ex. paper, plastic film, etc.) enters the slot and interrupts the beam. When the beam is blocked the photo transistor output of the OPB892T55Z is turned off, thereby reducing the current flow. When the object is removed, the beam is uninterrupted and the transistor output is turned on, thereby increasing the current flow.

Conclusion

The OPB892T55Z is a slot-type infrared photointerrupter with transistor output. It has a wide range of applications in the automation, industrial and consumer markets. The device is highly reliable and durable, with a voltage input rating of up to 100V and current output rating of up to 60mA. It operates on the principle of an infrared light beam being blocked when an object enters the slot and interrupted when the object is removed; thereby artificially triggering the transistor output. Optical Sensors → Photointerrupters → Slot Type → Transistor Output

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