HOA6981-T51

Series:	--
Part Status:	Obsolete
Sensing Distance:	0.125" (3.18mm)
Sensing Method:	Transmissive
Output Configuration:	NPN - Open Collector, Buffer
Mounting Type:	Chassis Mount, Wire Lead
Current - Supply:	15mA
Voltage - Supply:	4.5 V ~ 12 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 Output

The HOA6981-T51 is a type of slot-style photointerrupter, specifically a logic output, optically coupled photocoupler contained in a miniature SMT package. These types of photointerrupters are designed to draw a small amount of power and to be used in applications requiring the high speed switching of signals between circuits, and accuracy.The package of the HOA6981-T51 consists of a small, six-pin SMT profile, and each one is polarized for protection against unwanted swapping and misplacement. The package also includes a pair of phototransistors and a reflective lens that can be soldered on a PCB or used with a holder for mounting on the board.The HOA6981-T51 optical sensor consists of a miniature, slot-type, optically-isolated reflective photointerrupter with an integrated lens and two phototransistors. The phototransistors are placed in close proximity to each other, one facing the other, and separated by a gap (slot) for spacing. The photointerrupter typically offers a variety of different configurations and operating ranges that make it suitable for a variety of applications. The working principle of the HOA6981-T51 is relatively simple and users can interact with it using a variety of microcontroller-based processes. The device uses light to detect the presence or absence of an object that interrupts the path of its ray. When the light is interrupted, the phototransistors detect it and generate an output from the base (B) and emitter (E) pins that can be logic “High” or "Low", depending on the device configuration. The HOA6981-T51 is mostly used in industrial and robotics applications due to its fast switching response and high resolution. With its optically isolated design, it can be safely used in high-energy environments, such as motor control, PLCs, ATM machines, vending machines, and control panels. It is also highly resistant to voltage or interference, making it useful for controlling higher voltage systems. It can also be used in non-industrial applications such as robotics, toys, model trains, and 3D printers. Outside of these applications, the HOA6981-T51 can also be used to detect and count objects passing through the gap by controlling them with microcontroller-based logic. This provides increased accuracy in the count process and eliminates potential inaccuracies caused by human error. Additionally, because it has fast response and resolution, it can be used to detect and track objects moving at high speeds. The HOA6981-T51 optical sensor is a compact and versatile device that is perfect for use in a wide range of industries, manufacturing, and electronics. Its small size and simple design allows for cost-effective deployments in space-constrained environments, while its robust construction and reliable performance make it an ideal choice for any applications requiring precise, accurate detection.

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