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 Prix 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
N° de stock RS 453-0836
Référence fabricantH21A3
MarqueIsocom
1,608 €
Each (In a Pack of 5)
Unité
Phototransistor 1 8µs 50µs Screw Mount - 4 25.7 x 6.6 x 11.1mm 11.1mm 25.7mm +85°C -25°C 3mm 6.6mm
N° de stock RS 616-5686
Référence fabricantKRB031
MarqueKingbright
0,84 €
Each (In a Pack of 5)
Unité
Phototransistor 1 8000ns 10000ns Surface Mount SMD 4 4 x 6 x 5mm 5mm 4mm +85°C -40°C 3mm 6mm
N° de stock RS 455-0896
Référence fabricantOPB916BZ
MarqueOptek
4,62 €
Each
Unité
Buffer, Open-Collector with 10K Pull-Up Resistor 1 50ns 50ns Screw Mount - 5 30.73 x 6.48 x 19.3mm 19.3mm 30.73mm +80°C -40°C 5.08mm 6.48mm
N° de stock RS 170-0955
Référence fabricantOPB830W11Z
MarqueOptek
4,574 €
Each (In a Bag of 100)
Unité
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
N° de stock RS 908-7205
Référence fabricantOPB941W51Z
MarqueOptek
4,74 €
Each
Unité
Transistor - 70ns 70ns Panel Mount Wire - 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +70°C -40°C 3.18mm 12.95mm
N° de stock RS 908-7236
Référence fabricantOPB973N51
MarqueOptek
2,81 €
Each
Unité
Transistor - 70ns 70ns Through Hole Pin 5 12.32 x 6.35 x 10.8mm 10.8mm 12.32mm +70°C -40°C 3.18mm 6.35mm
N° de stock RS 170-0958
Référence fabricantOPB840W11Z
MarqueOptek
4,812 €
Each (In a Bag of 100)
Unité
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
N° de stock RS 880-1983
Référence fabricantOPB900W55Z
MarqueOptek
5,33 €
Each
Unité
Transistor 1 70ns 70ns Screw Mount - 5 30.99 x 6.35 x 10.8mm 10.8mm 30.99mm +70°C -40°C 9.53mm 6.35mm
N° de stock RS 818-7528
Référence fabricantTCST2202
MarqueVishay
0,937 €
Each (In a Pack of 10)
Unité
Phototransistor 1 10µs 8µs Through Hole Leaded 4 24.5 x 6.3 x 10.8mm 10.8mm 24.5mm +85°C -55°C - 6.3mm
N° de stock RS 170-0776
Référence fabricantOPB916BZ
MarqueOptek
4,54 €
Each (In a Bag of 25)
Unité
Buffer, Open-Collector with 10K Pull-Up Resistor 1 50ns 50ns Screw Mount - 5 30.73 x 6.48 x 19.3mm 19.3mm 30.73mm +80°C -40°C 5.08mm 6.48mm
N° de stock RS 788-4962
Référence fabricantEE-SX4009-P1
MarqueOmron
4,995 €
Each (In a Pack of 2)
Unité
Phototransistor 1 - - Screw Mount - 3 7 x 11 x 34mm 34mm 7mm +75°C -25°C 5mm 11mm
N° de stock RS 170-0775
Référence fabricantOPB830L51
MarqueOptek
2,242 €
Each (In a Bag of 25)
Unité
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
N° de stock RS 880-2015
Référence fabricantOPB840W11Z
MarqueOptek
5,01 €
Each
Unité
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
N° de stock RS 908-7211
Référence fabricantOPB960T11
MarqueOptek
3,15 €
Each
Unité
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
N° de stock RS 124-6793
Référence fabricantRPI-243
MarqueROHM
0,996 €
Each (In a Pack of 10)
Unité
Phototransistor 1 10µs 10µs Through Hole - 4 5 x 4.2 x 5.2mm 5.2mm 5mm +85°C -25°C 2mm 4.2mm
N° de stock RS 818-1494
Référence fabricantEE-SX672A
MarqueOmron
14,89 €
Each
Unité
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N° de stock RS 455-0919
Référence fabricantOPB917BZ
MarqueOptek
4,95 €
Each
Unité
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
N° de stock RS 908-7214
Référence fabricantOPB942W55Z
MarqueOptek
4,58 €
Each
Unité
Transistor - 70ns 70ns Panel Mount Wire - 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +70°C -40°C 3.18mm 12.95mm
N° de stock RS 321-9291
Référence fabricantHOA 2005 001
MarqueHoneywell
10,78 €
Each
Unité
Inverter, Open-Collector with 10K Pull-Up Resistor 1 60ns 15ns Screw Mount - 5 23.75 x 12.95 x 15.62mm 15.62mm 23.75mm +70°C -40°C 3.18mm 12.95mm
N° de stock RS 908-7208
Référence fabricantOPB933W51Z
MarqueOptek
4,91 €
Each
Unité
Transistor - 70ns 70ns Panel Mount Wire - 23.75 x 12.95 x 10.54mm 10.54mm 23.75mm +70°C -40°C 3.18mm 12.95mm