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
PHP898.35
Each
units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7429
Mfr. Part No.GP2Y0A710K0F
BrandSharp
PHP619.061
Each (In a Box of 500)
units
5500mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 666-6564
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
PHP482.59
Each
units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7437
Mfr. Part No.GP2Y0A21YK0F
BrandSharp
PHP280.877
Each (In a Box of 1000)
units
800mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 666-6568
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
PHP469.16
Each
units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 178-7438
Mfr. Part No.GP2Y0A41SK0F
BrandSharp
PHP261.209
Each (In a Tray of 1000)
units
300mm - - - - - - - - - - +60°C -10°C -
RS Stock No. 170-2386
Mfr. Part No.GP2Y0A02YK0F
BrandSharp
PHP462.008
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
PHP621.19
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. 708-5348
Mfr. Part No.CNY70
BrandVishay
PHP65.052
Each (In a Pack of 5)
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0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS Stock No. 826-4640
Mfr. Part No.GP1A57HRJ00F
BrandSharp
PHP130.804
Each (In a Pack of 5)
units
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 18.6 x 15.2 x 5mm 5mm 18.6mm +85°C -25°C 15.2mm
RS Stock No. 919-0082
Mfr. Part No.CNY70
BrandVishay
PHP35.644
Each (In a Tube of 80)
units
0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS Stock No. 178-5030
Mfr. Part No.GP1A57HRJ00F
BrandSharp
PHP82.611
Each (In a Bag of 100)
units
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 18.6 x 15.2 x 5mm 5mm 18.6mm +85°C -25°C 15.2mm
RS Stock No. 919-0001
Mfr. Part No.TCRT5000
BrandVishay
PHP35.566
Each (In a Tube of 50)
units
2.5mm - - - - - - - - - - - - -
RS Stock No. 708-5017
Mfr. Part No.TCRT5000
BrandVishay
PHP51.866
Each (In a Pack of 5)
units
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS Stock No. 666-6570
Mfr. Part No.GP2Y0D21YK0F
BrandSharp
PHP400.71
Each
units
- - - - - - - - - - - +60°C -10°C -
RS Stock No. 876-8824
Mfr. Part No.SFH 9540
PHP71.824
Each (In a Pack of 10)
units
- - - - - 4 Surface Mount - 13.46 x 6.8 x 10mm - - - - -
RS Stock No. 170-9507
Mfr. Part No.SFH 9540
PHP61.979
Each (In a Tube of 70)
units
- - - - - 4 Surface Mount - 13.46 x 6.8 x 10mm - - - - -
RS Stock No. 414-175
Mfr. Part No.OPB720A-06Z
BrandOptek
PHP715.51
Each
units
152mm Open Collector - - 1 3 Screw Mount - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +50°C 0°C 8.38mm
RS Stock No. 818-7521
Mfr. Part No.TCRT1010
BrandVishay
PHP33.843
Each (In a Pack of 10)
units
1mm Transistor - - 2 4 Through Hole Leaded 7 x 2.5 x 4mm 4mm 7mm +85°C -25°C 2.5mm
RS Stock No. 761-3984
Mfr. Part No.QRE1113GR
PHP43.516
Each (In a Pack of 5)
units
- Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm +85°C -40°C 2.9mm
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