Specification:

Product Name: Optical Sensor Switch
Model: HY805
Output Type: Photo Transistor
Peak Emission Wavelength: 940nm
IR Diode Forward Current: 50mA
IR Diode Reverse Voltage: 5V
Transistor Power Dissipation: 75mW
Transistor Collector Current: 20mA
Photo Transistor Collector-emitter Voltage: 30V
Photo Transistor Emitter-collector Voltage: 5V
Diode Power Dissipation: 100mW
Operating Temperature Range: -55~100 Celsius Degree
Number of Pins: 4
Slot Width: 2.8mm/7/64"
Slot Depth: 6.3mm/0.25"
Pin Length: 11.87mm/0.45"
Total Size: 21.6 x 19 x 12.9mm/0.85" x 0.75" x 0.51"(L*W*H)
Detection distance is not adjustable
Detection object ：opaque objects
Detection Distance：3mm
Material: Plastic, Metal
Color: Black
Package Content: 10pcs x Optical Sensor Switch

Description:

Consisted of an infrared emitter and a photo transistor, is located face-to-face on the optical axes in a leaded package.
During operation, output photo transistor switch from ON state to OFF state when object is inserted into gap between emitter and sensor.
Used for object detection and automatic counting, such as printer, scanner, copy machine, facsimile machine and vending machine, etc.