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. 666-6577
Mfr. Part No.GP2Y0A710K0F
BrandSharp
kr 173,38
Each
Units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7429
Mfr. Part No.GP2Y0A710K0F
BrandSharp
kr 116,718
Each (In a Box of 500)
Units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 315-450
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
kr 122,63
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
kr 91,997
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. 178-7438
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
kr 47,748
Each (In a Tray of 1000)
Units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 666-6564
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
kr 98,20
Each
Units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7437
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
kr 55,763
Each (In a Box of 1000)
Units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 170-2453
Mfr. Part No.GP2S60
BrandSharp
kr 2,521
Each (On a Reel of 2000)
Units
0.7mm Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.2 x 1.7 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.7mm
RS Stock No. 667-5041
Mfr. Part No.GP2S60
BrandSharp
kr 7,676
Each (In a Pack of 5)
Units
0.7mm Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.2 x 1.7 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.7mm
RS Stock No. 666-6568
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
kr 84,15
Each
Units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 708-5017
Mfr. Part No.TCRT5000
BrandVishay
kr 10,348
Each (In a Pack of 5)
Units
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS Stock No. 919-0001
Mfr. Part No.TCRT5000
BrandVishay
kr 7,168
Each (In a Tube of 50)
Units
2.5mm - - - - - - - - - - - - -
RS Stock No. 496-6443
Mfr. Part No.HSDL-9100-021
BrandBroadcom
kr 18,644
Each (In a Pack of 5)
Units
5mm Photodiode 50ns 50ns - 4 Surface Mount SMD 6.9 x 2.78 x 2.7mm 2.7mm 6.9mm +85°C -40°C 2.75mm
RS Stock No. 178-2947
Mfr. Part No.HSDL-9100-021
BrandBroadcom
kr 8,489
Each (On a Reel of 2500)
Units
5mm Photodiode 50ns 50ns - 4 Surface Mount SMD 6.9 x 2.78 x 2.7mm 2.7mm 6.9mm +85°C -40°C 2.75mm
RS Stock No. 642-4323
Mfr. Part No.OPB350W250Z
BrandOptek
kr 61,51
Each
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
RS Stock No. 708-2737
Mfr. Part No.TCRT1000
BrandVishay
kr 10,29
Each (In a Bag of 5)
Units
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS Stock No. 170-0732
Mfr. Part No.OPB720B-06Z
BrandOptek
kr 126,316
Each (In a Bag of 25)
Units
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS Stock No. 170-9507
Mfr. Part No.SFH 9540
kr 6,409
Each (In a Tube of 70)
Units
- - - - - 4 Surface Mount - 13.46 x 6.8 x 10mm - - - - -
RS Stock No. 315-466
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
kr 80,66
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. 165-2675
Mfr. Part No.TCRT1000
BrandVishay
kr 4,207
Each (In a Bag of 1000)
Units
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
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