OPB380L11Z

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Introduction

The OPB380L11Z optical sensor is a slot type, transistor output photointerrupter designed for use in an array of applications. It is a narrow slit-type optical interrupter using a slotted photocoupler, with a high insulation resistance, small effective area, and a wide response time range. By using a slotted photocoupler in combination with an element with both an infrared transmitting and receiving members, the OPB380L11Z optical sensor can detect through infrared radiation or light-emitting diode (LED) light.

Application Fields

This type of photointerrupter has a variety of applications including:

• Electric Power Tools
• Automotive Electronics
• HVAC (Heating, Ventilation, and Air Conditioning)
• Computer Peripherals
• Beverage Machines
• Home Appliance Control
• Accessories for Mobile Phones
• Security Systems

Working Principle

When the slotted photocoupler OPB380L11Z is switched on, the beam from the LED source is received by the adjacent photodiode receiver with an intensity greater than the switching threshold. The optical signal is then translated into an electrical signal through the photodiode receiver which is then amplified and output to the transistor. Depending on the beam’s duty cycle, either the transistor is switched off or on accordingly.

Conclusions

The OPB380L11Z optical sensor is a slot type, transistor output photointerrupter designed for use in an array of applications. It is a narrow slit-type optical interrupter using a slotted photocoupler, with a high insulation resistance, small effective area, and a wide response time range. When the slotted photocoupler is switched on, the beam is received by the adjacent photodiode receiver with an intensity greater than the switching threshold, and then translated into an electrical signal by the photodiode receiver and amplified to output to the transistor.

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