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 Stock No. 908-7144
Mfr. Part No.OPB815WZ
BrandOptek
kr 40,88
Each
Units
Transistor - - - Free Hanging Wire - 31.75 x 3.18 x 14.1mm 14.1mm 31.75mm +80°C -40°C 9.53mm 3.18mm
RS Stock No. 708-5553
Mfr. Part No.TCST2103
BrandVishay
kr 15,254
Each (In a Pack of 5)
Units
Phototransistor 1 10µs 8µs Through Hole - 4 24.5 x 6.3 x 11.1mm 11.1mm 24.5mm +85°C -55°C 3.1mm 6.3mm
RS Stock No. 908-7220
Mfr. Part No.OPB960T51
BrandOptek
kr 28,22
Each
Units
Transistor - 70ns 70ns Through Hole Pin 5 24.63 x 6.35 x 10.8mm 10.8mm 24.63mm +70°C -40°C 3.18mm 6.35mm
RS Stock No. 908-7135
Mfr. Part No.OPB802W55Z
BrandOptek
kr 39,28
Each
Units
Transistor - - - Panel Mount Wire - 30.99 x 6.35 x 15.63mm 15.63mm 30.99mm +80°C -40°C 9.53mm 6.35mm
RS Stock No. 666-6511
Mfr. Part No.GP1S092HCPIF
BrandSharp
kr 6,211
Each (In a Pack of 10)
Units
Phototransistor 1 50µs 50µs Surface Mount SMD 4 2.6 x 4.5 x 2.9mm 2.9mm 2.6mm +85°C -25°C 2mm 4.5mm
RS Stock No. 708-5547
Mfr. Part No.TCST1202
BrandVishay
kr 17,228
Each (In a Pack of 5)
Units
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
New
RS Stock No. 205-0551
Mfr. Part No.EE-SX1106
BrandOmron
kr 11,162
Each (In a Bag of 250)
Units
Phototransistor 1 - - Through Hole - - - - - - - - -
RS Stock No. 183-7470
Mfr. Part No.EESX3340
BrandOmron
kr 15,837
Each (In a Pack of 1000)
Units
- - - - - - - - - - - - - -
RS Stock No. 170-0965
Mfr. Part No.OPB992T51Z
BrandOptek
kr 53,515
Each (In a Bag of 100)
Units
- 1 70ns 70ns Screw Mount - 5 12.32 x 6.35 x 10.8mm 10.8mm 12.32mm +70°C -40°C 3.18mm 6.35mm
New
RS Stock No. 205-0581
Mfr. Part No.EE-SX1035
BrandOmron
kr 23,108
Each (In a Bag of 10)
Units
Phototransistor 1 - - Through Hole - - - - - - - - -
RS Stock No. 145-2215
Mfr. Part No.TCST1202
BrandVishay
kr 11,048
Each (In a Tube of 85)
Units
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS Stock No. 133-3287
Mfr. Part No.RPI-441C1E
BrandROHM
kr 6,018
Each (In a Pack of 25)
Units
Phototransistor 1 10µs 10µs Through Hole - 4 8 x 4.2 x 5.2mm 5.2mm 8mm +85°C -25°C 4mm 4.2mm
RS Stock No. 908-7160
Mfr. Part No.OPB840W55Z
BrandOptek
kr 38,58
Each
Units
Transistor - - - Panel Mount Wire - 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +80°C -40°C 3.18mm 12.95mm
New
RS Stock No. 205-0584
Mfr. Part No.EE-SX3164-P2
BrandOmron
kr 44,142
Each (In a Pack of 5)
Units
Photo IC 1 - - Through Hole - - - - - - - - -
New
RS Stock No. 205-0594
Mfr. Part No.EE-SX1025
BrandOmron
kr 20,166
Each (In a Pack of 5)
Units
Phototransistor 1 - - Through Hole - - - - - - - - -
New
RS Stock No. 205-0563
Mfr. Part No.EE-SX498
BrandOmron
kr 23,354
Each (In a Pack of 5)
Units
Photo IC 1 - - Through Hole - - - - - - - - -
RS Stock No. 880-2009
Mfr. Part No.OPB830W51Z
BrandOptek
kr 41,67
Each
Units
Transistor 1 - - Screw Mount - 4 23.75 x 6.35 x 10.54mm 10.54mm 23.75mm +80°C -40°C 3.18mm 6.35mm
RS Stock No. 908-7141
Mfr. Part No.OPB811W55Z
BrandOptek
kr 36,99
Each
Units
Transistor - - - Panel Mount Wire - 30.99 x 6.35 x 15.63mm 15.63mm 30.99mm +80°C -40°C 9.53mm 6.35mm
RS Stock No. 908-7166
Mfr. Part No.OPB831W55Z
BrandOptek
kr 37,89
Each
Units
Transistor - - - Panel Mount Wire - 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +80°C -40°C 3.18mm 12.95mm
New
RS Stock No. 205-0557
Mfr. Part No.EE-SX1071
BrandOmron
kr 19,206
Each (In a Pack of 5)
Units
- 1 - - Through Hole - - - - - - - - -
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