Slotted Optical Switches

Slotted optical switches (also called opto switches) are devices that provide status indications (on or off) when light beams are interrupted in various types of instruments, systems and equipment.

The switches contain phototransistors, which are illuminated by infrared light from the LEDs. The illumination causes the phototransistors to conduct. If objects are then placed into the slots between the transistors and the LEDs, the interruption of the light beams causes the transistors to switch off.

Optical slotted switches may also house rotating discs with holes around the rims. These holes spin within the light paths of the switches to create on and off pulses and direct the speed of the spinning discs.

What are slotted optical switches used for?

Slotted optical switches are used in assembly line production systems, machine automation and machine safety indicators.

The switches are standard in computer peripherals like printers, where the projection images get interrupted when they reach the end of their travel.

Types of slotted optical switches

Slotted optical switches are classified by their output mechanisms (buffers, inverters, interrupters), mounting types (through hole, panel, surface) and the number of pins located on the switches.


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Description Price Output Device Number of Channels Typical Rise Time Typical Fall Time Mounting Type Package Type Number of Pins Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Slot Width Width
RS庫存編號 170-0775
製造零件編號OPB830L51
BrandOptek
HK$20.296
個 (以毎袋:25)
單位
Phototransistor 1 - - Screw Mount - 4 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +85°C -40°C 3.18mm 12.95mm
RS庫存編號 788-4962
製造零件編號EE-SX4009-P1
BrandOmron
HK$35.53
/個 (每包:2個)
單位
Phototransistor 1 - - Screw Mount - 3 7 x 11 x 34mm 34mm 7mm +75°C -25°C 5mm 11mm
RS庫存編號 146-1449
製造零件編號TCUT1350X01
BrandVishay
HK$5.851
個 (在毎卷:2000)
單位
Phototransistor 2 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS庫存編號 666-6482
製造零件編號GP1A52LRJ00F
BrandSharp
HK$17.85
/個 (每包:2個)
單位
Photologic, Pull Up 1 0.1µs 0.05µs Through Hole - 5 12.2 x 5 x 10mm 10mm 12.2mm +85°C -25°C 3mm 5mm
RS庫存編號 219-2533
製造零件編號EE-SX1041
BrandOmron
HK$21.72
單位
Transistor 1 4000ns 4000ns Through Hole - 4 6 x 14.6 x 10.9mm 10.9mm 6mm +95°C -25°C 5mm 14.6mm
RS庫存編號 455-0919
製造零件編號OPB917BZ
BrandOptek
HK$45.69
單位
Buffer, Open-Collector with 10K Pull-Up Resistor 1 50ns 50ns Through Hole - 5 30.73 x 6.35 x 25.65mm 25.65mm 30.73mm +85°C -40°C 5.08mm 6.35mm
RS庫存編號 700-3999
製造零件編號RPI-352
BrandROHM
HK$5.445
/個 (每包:2個)
單位
Phototransistor 1 10µs 10µs Through Hole - 4 6.4 x 4.2 x 5.4mm 5.4mm 6.4mm +85°C -25°C 3mm 4.2mm
RS庫存編號 178-1534
製造零件編號GP1A52LRJ00F
BrandSharp
HK$8.889
個 (以毎袋:100)
單位
Photologic, Pull Up 1 0.1µs 0.05µs Through Hole - 5 12.2 x 5 x 10mm 10mm 12.2mm +85°C -25°C 3mm 5mm
RS庫存編號 173-0303
製造零件編號OPB917BZ
BrandOptek
HK$43.898
個 (以毎盒:100)
單位
Buffer, Open-Collector with 10K Pull-Up Resistor 1 50ns 50ns Through Hole - 5 30.73 x 6.35 x 25.65mm 25.65mm 30.73mm +85°C -40°C 5.08mm 6.35mm
RS庫存編號 170-2452
製造零件編號GP1S58VJ000F
BrandSharp
HK$5.90
個 (以毎袋:100)
單位
Phototransistor 1 3µs 4µs Through Hole - 4 13.7 x 5.2 x 12mm 12mm 13.7mm +85°C -25°C 5mm 5.2mm
RS庫存編號 908-7194
製造零件編號OPB917BZ
BrandOptek
HK$45.69
單位
Transistor - 50ns 50ns Free Hanging Wire - 30.73 x 6.35 x 25.65mm 25.65mm 30.73mm +80°C -40°C 5.08mm 6.35mm
RS庫存編號 170-0961
製造零件編號OPB880P51Z
BrandOptek
HK$33.036
個 (以毎袋:100)
單位
- 1 - - Screw Mount - 4 18.47 x 6.35 x 15.75mm 15.75mm 18.47mm +85°C -40°C 3.3mm 6.35mm
RS庫存編號 818-7537
製造零件編號TCUT1350X01
BrandVishay
HK$6.732
/個 (每包:10個)
單位
Phototransistor 2 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS庫存編號 303-1192
製造零件編號OPB365T55
BrandOptek
HK$23.10
單位
Phototransistor 1 10µs - Screw Mount - 4 24.61 x 6.35 x 10.8mm 10.8mm 24.61mm +85°C -40°C 3.18mm 6.35mm
RS庫存編號 301-8442
製造零件編號OPB620
BrandOptek
HK$13.13
單位
Phototransistor 1 - - Through Hole - 4 10.16 x 5.59 x 9.52mm 9.52mm 10.16mm +100°C -40°C 4.83mm 5.59mm
RS庫存編號 880-2025
製造零件編號OPB880P51Z
BrandOptek
HK$34.77
單位
- 1 - - Screw Mount - 4 18.47 x 6.35 x 15.75mm 15.75mm 18.47mm +85°C -40°C 3.3mm 6.35mm
RS庫存編號 455-0880
製造零件編號OPB830L51
BrandOptek
HK$23.91
單位
Phototransistor 1 - - Screw Mount - 4 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +85°C -40°C 3.18mm 12.95mm
RS庫存編號 667-5039
製造零件編號GP1S58VJ000F
BrandSharp
HK$10.732
/個 (每包:5個)
單位
Phototransistor 1 3µs 4µs Through Hole - 4 13.7 x 5.2 x 12mm 12mm 13.7mm +85°C -25°C 5mm 5.2mm
RS庫存編號 666-6536
製造零件編號GP1S52VJ000F
BrandSharp
HK$10.93
/個 (每包:5個)
單位
Phototransistor 1 3µs 4µs Through Hole - 4 12.2 x 5 x 10mm 10mm 12.2mm +85°C -25°C 3mm 5mm
RS庫存編號 124-6791
製造零件編號RPI-0226
BrandROHM
HK$5.317
/個 (每包:15個)
單位
Phototransistor 1 30µs 30µs Surface Mount SMD 4 4.4 x 2.7 x 2.8mm 2.8mm 4.4mm +85°C -30°C 2mm 2.7mm