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庫存編號 165-2675
製造零件編號TCRT1000
BrandVishay
HK$3.64
個 (以毎袋:1000)
單位
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS庫存編號 170-2820
製造零件編號EE-SY1200
BrandOmron
HK$12.792
個 (在毎卷:2000)
單位
4mm Phototransistor 30µs 30µs 10 4 Surface Mount SMD 3.2 x 1.9 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.9mm
RS庫存編號 788-4928
製造零件編號EE-SY1200
BrandOmron
HK$19.28
/個 (每包:2個)
單位
4mm Phototransistor 30µs 30µs 10 4 Surface Mount SMD 3.2 x 1.9 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.9mm
RS庫存編號 708-2737
製造零件編號TCRT1000
BrandVishay
HK$9.24
個 (以毎袋:5)
單位
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS庫存編號 178-7542
製造零件編號QRE1113
HK$3.55
個 (以毎袋:1600)
單位
- Phototransistor 20µs 20µs 1 4 Through Hole Miniature 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm +85°C -40°C 2.9mm
RS庫存編號 862-9400
製造零件編號QRE1113
HK$6.59
/個 (每包:10個)
單位
- Phototransistor 20µs 20µs 1 4 Through Hole Miniature 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm +85°C -40°C 2.9mm
RS庫存編號 178-2947
製造零件編號HSDL-9100-021
BrandBroadcom
HK$8.44
個 (在毎卷:2500)
單位
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庫存編號 146-0783
製造零件編號GP2Y0D02YK0F
BrandSharp
HK$68.98
單位
80cm - - - - - Surface Mount - 37 x 13 x 21.6mm 21.6mm 37mm +60°C -10°C 13mm
RS庫存編號 894-7124
製造零件編號SFH 7060
HK$16.536
/個 (每包:5個)
單位
- - 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庫存編號 496-6443
製造零件編號HSDL-9100-021
BrandBroadcom
HK$18.48
/個 (每包:5個)
單位
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庫存編號 146-0745
製造零件編號GP2Y0D02YK0F
BrandSharp
HK$48.832
Each (In a Tray of 50)
單位
80cm - - - - - Surface Mount - 37 x 13 x 21.6mm 21.6mm 37mm +60°C -10°C 13mm
RS庫存編號 315-466
製造零件編號GP2Y0D02YK0F
BrandSharp
HK$76.76
單位
900mm Digital - - - 3 Surface Mount - 29.5 x 13 x 21.6mm 21.6mm 29.5mm +60°C -10°C 13mm
RS庫存編號 178-7438
製造零件編號GP2Y0A41SK0F
BrandSharp
HK$49.89
Each (In a Tray of 1000)
單位
300mm - - - - - - - - - - +60°C -10°C -
RS庫存編號 178-7439
製造零件編號GP2Y0D810Z0F
BrandSharp
HK$35.825
Each (In a Tray of 1000)
單位
100mm Photodiode - - - - - - - - - +60°C -10°C -
RS庫存編號 666-6580
製造零件編號GP2Y0D810Z0F
BrandSharp
HK$40.03
單位
100mm Photodiode - - - - - - - - - +60°C -10°C -
RS庫存編號 785-7709
製造零件編號TMD26711
Brandams
HK$12.18
/個 (每包:2個)
單位
100mm Photodiode 20ns 20ns 1 8 Surface Mount Flat No Lead 3.94 x 2.36 x 1.35mm 1.35mm 3.94mm +85°C -30°C 2.36mm
RS庫存編號 708-5017
製造零件編號TCRT5000
BrandVishay
HK$7.454
/個 (每包:5個)
單位
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS庫存編號 170-0908
製造零件編號TMD26711
Brandams
HK$15.282
個 (在毎卷:2500)
單位
100mm Photodiode 20ns 20ns 1 8 Surface Mount Flat No Lead 3.94 x 2.36 x 1.35mm 1.35mm 3.94mm +85°C -30°C 2.36mm
RS庫存編號 919-0001
製造零件編號TCRT5000
BrandVishay
HK$5.041
毎管:50 個
單位
2.5mm - - - - - - - - - - - - -
RS庫存編號 666-6568
製造零件編號GP2Y0A41SK0F
BrandSharp
HK$78.90
單位
300mm - - - - - - - - - - +60°C -10°C -