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. 178-7438
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
€4.789
Each (In a Tray of 1000)
units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 666-6568
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
€8.44
Each
units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 145-1738
Mfr. Part No.TCRT5000L
BrandVishay
€0.635
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. 818-7524
Mfr. Part No.TCRT5000L
BrandVishay
€0.635
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. 170-2386
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
€9.227
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. 315-450
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
€12.30
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. 165-2675
Mfr. Part No.TCRT1000
BrandVishay
€0.422
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
RS Stock No. 666-6577
Mfr. Part No.GP2Y0A710K0F
BrandSharp
€17.39
Each
units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 708-2737
Mfr. Part No.TCRT1000
BrandVishay
€1.032
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. 178-7429
Mfr. Part No.GP2Y0A710K0F
BrandSharp
€11.707
Each (In a Box of 500)
units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 146-0783
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
€8.09
Each
units
80cm - - - - - Surface Mount - 37 x 13 x 21.6mm 21.6mm 37mm +60°C -10°C 13mm
RS Stock No. 146-0745
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
€5.978
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. 315-466
Mfr. Part No.GP2Y0D02YK0F
BrandSharp
€8.09
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. 708-5017
Mfr. Part No.TCRT5000
BrandVishay
€1.038
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
€0.719
Each (In a Tube of 50)
units
2.5mm - - - - - - - - - - - - -
RS Stock No. 178-7437
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
€5.593
Each (In a Box of 1000)
units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 170-0732
Mfr. Part No.OPB720B-06Z
BrandOptek
€12.67
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. 168-5476
Mfr. Part No.SFH 9206
€0.394
Each (On a Reel of 1000)
units
5mm Phototransistor 30µs 40µs 1 6 Surface Mount SMD 6.2 x 2.1 x 4.2mm 4.2mm 6.2mm +100°C -40°C 2.1mm
RS Stock No. 915-4926
Mfr. Part No.SFH 9206-6/7
€0.796
Each (In a Pack of 10)
units
1 → 5mm Phototransistor 30µs 40µs - 6 Surface Mount - 4.2 x 3.4 x 2.1mm 2.1mm 4.2mm +100°C -40°C 3.4mm
RS Stock No. 414-197
Mfr. Part No.OPB720B-06Z
BrandOptek
€12.94
Each
units
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
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