Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Sensing Distance:	0.125" (3.18mm)
Sensing Method:	Transmissive
Output Configuration:	Transistor
Current - DC Forward (If) (Max):	50mA
Current - Collector (Ic) (Max):	30mA
Voltage - Collector Emitter Breakdown (Max):	30V
Response Time:	15µs
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	PCB Mount
Type:	Unamplified

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optical Sensors - Photointerrupters - Slot Type - Transistor Output HOA0875-L55

The advancement of technology has allowed for the development of the HOA0875-L55 optical sensor, a photointerrupter slot type with a transistor output. This device is designed primarily for speed and position sensing applications, including the detection of rotary public, gears, cams and slotted discs that block light from passing through the slot.

The Operating Mechanism

The HOA0875-L55 sensor operates with an emitter and receiver arranged in an optoelectronic module. The device is set up with the emitter on one side and the receiver on the other. The emitter contains an LED which emits light when a current is supplied, and the receiver contains a silicon phototransistor which converts the light into a current when the LED is on and goes open-circuit when the LED is off. When no obstacle is placed between the emitter and receiver, the light passes through and the phototransistor remains activated. However, if an obstacle is placed between the emitter and receiver, the light is blocked and the phototransistor goes open-circuit.

Applications

There are a variety of applications for the HOA0875-L55 optical sensor. It is used in the detection of rotary switches, gears, cams, and slotted discs, which can detect rotation and position of the disc or gear. The HOA0875-L55 is used in a variety of robotic automation and motion control equipment for speed and distance measuring applications. It can also be used in security equipment or medical equipment that requires monitoring, as it can detect any objects within its range.

Advantages of the HOA0875-L55

The HOA0875-L55 has a range of benefits over traditional sensing methods, such as mechanical switches. The most notable advantage is its high response rate. With a 10kHz response rate, the device can detect any objects passing through its sensing range without a delay. Additionally, it is contactless, meaning it does not require direct physical contact with the object, which is beneficial for applications where physical contact is unfeasible. This device has a low power consumption, which makes it ideal for battery powered applications.

Working Principle

The HOA0875-L55 works on the principle of reflective optical sensing. It detects the interruption of light passing between the emitter and receiver. When an obstacle is placed in the path of the light beam, the phototransistor is opened and a voltage is produced in the secondary circuit. This voltage is then sent to the integrated circuit, which produces a signal with the resistance corresponding to the sensed object. This signal can be used by the controlling device for further processing.

Conclusion

The HOA0875-L55 optical sensor has become a popular choice for speed and position sensing applications. Its compact design, low power consumption, high response rate, and non-contact operation make it a great choice for a variety of robotic automation and motion control applications. With its ability to detect rotary switches, gears and cams, it provides a reliable and efficient alternative to traditional sensing methods.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description