OPB900W55

Series:	Photologic®
Part Status:	Obsolete
Sensing Distance:	0.375" (9.53mm)
Sensing Method:	Transmissive
Output Configuration:	Totem Pole, Buffer
Mounting Type:	Chassis Mount
Current - Supply:	15mA
Voltage - Supply:	4.75 V ~ 5.25 V
Response Time:	70ns
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	Module, Pre-Wired

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Optical Sensors - Photointerrupters - Slot Type - Logic Output
Carrier-current type slot type photointerrupters, such as the OPB900W55, are designed for the detection of non-magnetic materials. The sensing principle is quite simple: an infrared LED light is directed through a slot, and a photodiode on the other side of the slot detects the presence or absence of the light. Output is provided in the form of a logic level signal.The OPB900W55 is used in a wide variety of applications including counting applications, various sorting and processing systems, production line machinery, and packaging applications. The device is ideally suited for sensing narrow slots or openings (less than 2.5mm wide) to trigger clear, reliable outputs. The device is also suitable for the detection of both metallic and non-metallic objects, which includes paper, films, and other thin materials.In addition to its versatility, the OPB900W55 features a wide operating temperature range (-30 to 80 degrees Celsius), making it suitable for use in a wide variety of industrial and commercial environments as well. The device also features a slim profile, high reliability, and a wide range of available models, making it a great choice for a variety of applications.At a basic level, the working principle of the OPB900W55 is the same as any other slot type photointerrupter: when light passes through the slot and is detected by the photodiode, a logic level signal is produced. However, the OPB900W55 features a unique “carrier-current” design, which effectively allows for much greater sensing accuracy. In this design, a carrier current is supplied from the photodiode to the LED. The current then “leaks” out of the photodiode and is detected by the LED. This allows for a greater degree of sensitivity as the device can detect even small changes in light levels.In addition, the OPB900W55 can be used to detect objects of various sizes and shapes. Objects passing through the slot can range in size from 0.1mm up to 10mm, while the device is able to detect objects from 20μm up to 10mm in thickness.In summary, the OPB900W55 is an ideal choice for many sensing applications due to its versatility, precision, wide operating temperature range, and its ability to detect objects of various sizes. With its many features, the OPB900W55 is certainly capable of providing a reliable and accurate solution for even the most challenging sensing applications.

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