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 915-4926
製造零件編號SFH 9206-6/7
TWD29.70
/個 (每包:10個)
單位
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庫存編號 894-7124
製造零件編號SFH 7060
TWD91.20
/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 170-9658
製造零件編號SFH 9206-6/7
TWD16.60
個 (在毎卷:1000)
單位
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庫存編號 876-8824
製造零件編號SFH 9540
TWD46.70
/個 (每包:10個)
單位
- - - - - 4 Surface Mount - 13.46 x 6.8 x 10mm - - - - -
RS庫存編號 778-1396
製造零件編號SFH 9206
TWD46.80
/個 (每包:5個)
單位
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庫存編號 168-5476
製造零件編號SFH 9206
TWD14.70
個 (在毎卷:1000)
單位
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庫存編號 170-9657
製造零件編號SFH 9206-5/6
TWD16.60
個 (在毎卷:1000)
單位
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庫存編號 915-4917
製造零件編號SFH 9206-5/6
TWD30.70
/個 (每包:10個)
單位
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庫存編號 170-9507
製造零件編號SFH 9540
TWD49.60
毎管:70 個
單位
- - - - - 4 Surface Mount - 13.46 x 6.8 x 10mm - - - - -