OPB980T11

Series:	Photologic®
Part Status:	Obsolete
Sensing Distance:	0.125" (3.18mm)
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 ~ 70°C (TA)
Package / Case:	Module, Pre-Wired

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Optical Sensors - Photointerrupters - Slot Type - Logic OutputOPB980T11 is an advanced slot-type photointerrupters from TT Electronics’ Optek Technology division. These device are designed for applications such as speed, direction and pulse-output sensing, and provide excellent ambient light rejection. Photointerrupters are able to emit or receive light across a slot opening. Generally, they consist of two parts; the emitter and the receiver, with the slot between them. When object passes through the slot, light is blocked from the detector, signaling that something has been detected. The OPB980T11 is a logic output slot-type photointerrupter which contains a 670nm high-power infrared LED as the emitter, and a monolithic silicon phototransistor as the receiver. This device has low power consumption, and hence is suitable for battery-operated systems. It is also capable of rejecting ambient light and has high packing density due to its low profile dimensions of just 8.3mm by 2.54mm. The average on state current for LED is 20mA, and the off state collector-emitter voltage for the phototransistor is also very low. When the OPB980T11 is triggered, it responds quickly, and the output is pull-up when activated. This enables the system to detect any action or movement within milliseconds and respond accordingly. The device is also resistant to electrical noise from internal switch bouncing. Its wide operating temperature range from -40°C to 85°C allows the system to be used in varying environmental conditions. The OPB980T11 is commonly used in speed sensors for rotating parts such as cams and motors; it can sense both direction of (clockwise or anti-clockwise) motion of the part. It is also ideal for applications such as presence or absence detection in machine part monitoring and counting, as well as helping to detect possible jams in powered conveyor systems. In conclusion, the OPB980T11 device from Optek Technology is an advanced logic output slot-type photointerrupter designed specifically for speed, direction and pulse-output sensing. It is designed to detect any action or movement in milliseconds using its pull-up output and offers a wide operating temperature range from -40°C to 85°C. This device is suitable for use in battery-operated systems due to its low power consumption and ambient light rejection. It is ideal for applications such as speed sensors for rotating parts, presence or absence detection, and other machine monitoring uses.

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