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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Beskrivning Pris 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-artikelnummer 708-5348
Tillv. art.nrCNY70
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11,56 kr
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0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS-artikelnummer 919-0082
Tillv. art.nrCNY70
VarumärkeVishay
7,468 kr
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0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS-artikelnummer 708-5017
Tillv. art.nrTCRT5000
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10,92 kr
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2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS-artikelnummer 919-0001
Tillv. art.nrTCRT5000
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6,688 kr
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2.5mm - - - - - - - - - - - - -
RS-artikelnummer 773-0420
Tillv. art.nrVCNL4010-GS08
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28,33 kr
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200mm Microcontroller - - 1 13 Surface Mount - 3.95 x 3.95 x 0.75mm - - +85°C -25°C -
RS-artikelnummer 165-7087
Tillv. art.nrTCND5000
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10,589 kr
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6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS-artikelnummer 919-1001
Tillv. art.nrVCNL4010-GS08
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12,93 kr
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200mm Microcontroller - - 1 13 Surface Mount - 3.95 x 3.95 x 0.75mm - - +85°C -25°C -
RS-artikelnummer 773-3993
Tillv. art.nrTCND5000
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24,30 kr
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6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS-artikelnummer 165-6261
Tillv. art.nrTCRT1010
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4,421 kr
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1mm Transistor - - 2 4 Through Hole Leaded 7 x 2.5 x 4mm 4mm 7mm +85°C -25°C 2.5mm
RS-artikelnummer 145-1738
Tillv. art.nrTCRT5000L
VarumärkeVishay
7,184 kr
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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-artikelnummer 818-7524
Tillv. art.nrTCRT5000L
VarumärkeVishay
7,362 kr
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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-artikelnummer 165-2675
Tillv. art.nrTCRT1000
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4,135 kr
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1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS-artikelnummer 818-7521
Tillv. art.nrTCRT1010
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6,938 kr
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1mm Transistor - - 2 4 Through Hole Leaded 7 x 2.5 x 4mm 4mm 7mm +85°C -25°C 2.5mm
RS-artikelnummer 708-2737
Tillv. art.nrTCRT1000
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9,844 kr
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1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS-artikelnummer 161-2156
Tillv. art.nrVCNT2020
VarumärkeVishay
5,015 kr
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2.5mm Phototransistor 10µs 15µs - 4 Surface Mount SMD 2.5 x 2 x 0.8mm 0.8mm 2.5mm 85°C -25°C 2mm
RS-artikelnummer 161-2050
Tillv. art.nrVCNT2020
VarumärkeVishay
4,124 kr
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2.5mm Phototransistor 10µs 15µs - 4 Surface Mount SMD 2.5 x 2 x 0.8mm 0.8mm 2.5mm 85°C -25°C 2mm