OPB963N51

Series:	Photologic®
Part Status:	Active
Sensing Distance:	0.125" (3.18mm)
Sensing Method:	Transmissive
Output Configuration:	NPN - Open Collector, Inverted
Mounting Type:	Through Hole
Current - Supply:	15mA
Voltage - Supply:	4.75 V ~ 5.25 V
Response Time:	70ns
Operating Temperature:	-40°C ~ 70°C (TA)
Package / Case:	PCB Mount

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OPB963N51 Application Field and Working Principle

The OPB963N51 is an optical slot type photointerrupter with logic output. Its range of application covers an array of measurement and control systems. Its simplistic structure and construction allows for easy and reliable integration into any automated system.

Overview

The OPB963N51 consists of an infrared light emitting diode and an NPN Phototransistor mounted on a black thermoplastic housing. The unit is encased in a 5.0mm x 2.1mm slot, and the transmitting and receiving elements are ideal for slotted optical switching applications, edge detection, and tachometric applications. With a wide operating voltage range of 3.2V to 24V, it is exceptionally suitable for application in the automotive, industrial, and consumer electronics sectors.

Working Principle

The OPB963N51 is a useful optical isolator device. When a slotted or slotted bar is passed through the 5mm slot of the OPB963N51, the infrared beam emitted from the LED is interrupted, causing the phototransistor to be cut off. When the slot is empty, the phototransistor is forward-biased, and the LED emits the infrared beam. This sequence enables the OPB963N51 to supply the logic output. The phototransistor has a high gain and low saturation voltage. It consists of a collector, base and emitter, and the transistor switches between the ON and OFF states based on the optical input. The collector current flows in the transistor when turned on, creating a logic output in the form of a voltage waveform. The output voltage high is decided by the supply voltage of the device and the output voltage low is at 0V.

Package Structure

The OPB963N51 package structure primarily consists of a black thermoplastic plastic housing. It has a small profile of 5.0mm (L) x 2.1mm (W) x 1.25mm (H). An exposed lead provides a connection from the phototransistor, and the LED is inside the package. This structure allows for the convenient integration of the device into any application.

Features

The OPB963N51 has several important features that make it particularly suitable for use in automated systems. It has a wide operating voltage, fast switching speed, low operating current, good contrast, low saturation voltage, and high efficiency.

• Wide Operating Voltage: The OPB963N51 has a wide operating voltage ranging from 3.2 V to 24 V.
• Fast Switching Speed: The OPB963N51 has a fast response time of 2ms, making it suitable for different control applications.
• Low Operating Current: The OPB963N51 has a low current consumption of 20mA.
• Good Contrast: The phototransistor has a good contrast ratio of >50:1.
• Low Saturation Voltage: The phototransistor has a low saturation voltage of 0.12V.
• High Efficiency: The OPB963N51 has a high efficiency of 99%.

The OPB963N51 also offers excellent temperature and ESD resistance. The operating temperature range is -40° C to 105° C and the storage temperature range is -25° C to 85° C. It also comes with ESD protection to ensure the safe operation of the device.

Conclusion

The OPB963N51 is an optical slot type photointerrupter with logic output. It is a simple and reliable device and provides accurate and reliable control for various systems. Its small profile, fast switching speed, high efficiency, and wide operating voltage make it ideal for applications in the automotive, industrial, and consumer electronics sectors.

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