Reflective Optical Sensors

Reflective optical sensors are photoelectrical sensors that are used to detect the presence or absence of objects, or measure the distance to those objects. They are a non-contact type of sensor, often used in the automation industry. They can be used to provide real-time information in a manufacturing setting in order to keep processes running smoothly.

How do reflective optical sensors work?

A reflector is positioned opposite the light sensor, and a light beam is passed back and forth between the two. When an object is present, the beam is interrupted, and the sensor will send an electrical signal to the output device.

In some cases, polarising filters may be needed if the objects being detected are themselves reflective. These allow the sensor to tell the difference between light reflected by the reflector and the object.

Advantages of using reflective optical sensors

The advantage of using a reflective optical sensor over a through beam sensor is that they are much easier and less time consuming to install. This is because the transmitter and receiver are housed within the same body.


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Description Price Peak Sensor Distance Output Device Typical Rise Time Typical Fall Time Number of Channels Number of Pins Mounting Type Package Type Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Width
RS Stock No. 178-7437
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
SGD10.411
Each (In a Box of 1000)
units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 666-6564
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
SGD13.76
Each
units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 315-450
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
SGD30.45
Each
units
1500mm - - - - 3 Screw Mount - 44.5 x 18.9 x 21.6mm 21.6mm 44.5mm +60°C -10°C 18.9mm
RS Stock No. 170-2386
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
SGD28.127
Each (In a Tray of 50)
units
1500mm - - - - 3 Screw Mount - 44.5 x 18.9 x 21.6mm 21.6mm 44.5mm +60°C -10°C 18.9mm
RS Stock No. 826-4678
Mfr. Part No.GP1A52HRJ00F
BrandSharp
SGD2.626
Each (In a Pack of 5)
units
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 12.2 x 10 x 5mm 5mm 12.2mm +85°C -25°C 10mm
RS Stock No. 894-7124
Mfr. Part No.SFH 7060
SGD2.82
Each (In a Pack of 5)
units
- - 16ns 16ns - 12 Surface Mount Chip 7.2 x 2.5 x 0.9mm 0.9mm 7.2mm +85°C -40°C 2.5mm
RS Stock No. 168-7926
Mfr. Part No.GP1A52HRJ00F
BrandSharp
SGD1.861
Each (In a Bag of 100)
units
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 12.2 x 10 x 5mm 5mm 12.2mm +85°C -25°C 10mm
RS Stock No. 773-3993
Mfr. Part No.TCND5000
BrandVishay
SGD2.39
Each
units
6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS Stock No. 165-7087
Mfr. Part No.TCND5000
BrandVishay
SGD1.53
Each (On a Reel of 2000)
units
6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS Stock No. 919-0001
Mfr. Part No.TCRT5000
BrandVishay
SGD0.885
Each (In a Tube of 50)
units
2.5mm - - - - - - - - - - - - -
RS Stock No. 708-5017
Mfr. Part No.TCRT5000
BrandVishay
SGD2.33
Each (In a Pack of 5)
units
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS Stock No. 315-466
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
SGD25.69
Each
units
900mm Digital - - - 3 Surface Mount - 29.5 x 13 x 21.6mm 21.6mm 29.5mm +60°C -10°C 13mm
RS Stock No. 146-0745
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
SGD9.098
Each (In a Tray of 50)
units
80cm - - - - - Surface Mount - 37 x 13 x 21.6mm 21.6mm 37mm +60°C -10°C 13mm
RS Stock No. 146-0783
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
SGD14.35
Each
units
80cm - - - - - Surface Mount - 37 x 13 x 21.6mm 21.6mm 37mm +60°C -10°C 13mm
RS Stock No. 666-6568
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
SGD13.60
Each
units
300 - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7438
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
SGD11.856
Each (In a Tray of 1000)
units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 642-4301
Mfr. Part No.OPB732
BrandOptek
SGD7.86
Each
units
1in Phototransistor - - 1 4 Through Hole - 12.19 x 5.08 x 12.7mm 12.7mm 12.19mm +85°C -40°C 5.08mm
RS Stock No. 818-7524
Mfr. Part No.TCRT5000L
BrandVishay
SGD1.801
Each (In a Pack of 10)
units
2.5mm Transistor - - 2 4 Through Hole Leaded 10.2 x 5.8 x 8.5mm 8.5mm 10.2mm +85°C -40°C 5.8mm
RS Stock No. 145-1738
Mfr. Part No.TCRT5000L
BrandVishay
SGD0.874
Each (In a Tube of 50)
units
2.5mm Transistor - - 2 4 Through Hole Leaded 10.2 x 5.8 x 8.5mm 8.5mm 10.2mm +85°C -40°C 5.8mm
RS Stock No. 170-0783
Mfr. Part No.OPB350W250Z
BrandOptek
SGD16.323
Each (In a Bag of 25)
units
6.35mm Phototransistor - - 1 4 Screw Mount - 29.59 x 7.62 x 13.34mm 13.34mm 29.59mm +85°C -40°C 7.62mm
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