Slotted Optical Switches, Photo Interrupter | RS
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    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.

    213 Products showing for Slotted Optical Switches

    ROHM
    Phototransistor
    1
    10µs
    10µs
    Through Hole
    -
    4
    8 x 4.2 x 5.2mm
    5.2mm
    8mm
    +85°C
    -25°C
    4mm
    4.2mm
    Sharp
    Phototransistor
    1
    50µs
    50µs
    Through Hole
    -
    4
    2.6 x 4.5 x 2.9mm
    2.9mm
    2.6mm
    +85°C
    -25°C
    2mm
    4.5mm
    Vishay
    Phototransistor
    2
    9µs
    16µs
    Surface Mount
    -
    6
    5.5 x 4 x 4mm
    4mm
    5.5mm
    +125°C
    -40°C
    3mm
    4mm
    Omron
    Phototransistor
    1
    -
    -
    Through Hole
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Optek
    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
    Sharp
    Phototransistor
    1
    50µs
    50µs
    Through Hole
    -
    4
    2.6 x 4.5 x 2.9mm
    2.9mm
    2.6mm
    +85°C
    -25°C
    2mm
    4.5mm
    Optek
    Buffer, Open-Collector with 10K Pull-Up Resistor
    1
    30ns
    30ns
    Through Hole
    -
    5
    5.58 x 10.16 x 9.52mm
    9.52mm
    5.58mm
    +100°C
    -40°C
    4.83mm
    10.16mm
    Optek
    -
    1
    70ns
    70ns
    Screw Mount
    -
    5
    24.63 x 6.35 x 10.8mm
    10.8mm
    24.63mm
    +70°C
    -40°C
    3.18mm
    6.35mm
    Vishay
    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
    Omron
    Transistor
    1
    4000ns
    4000ns
    Through Hole
    -
    4
    6 x 14.6 x 10.9mm
    10.9mm
    6mm
    +95°C
    -25°C
    5mm
    14.6mm
    Vishay
    Phototransistor
    1
    10 μ
    8µs
    Through Hole
    -
    4
    24.5 x 6.3 x 11.1mm
    11.1mm
    24.5mm
    85°C
    -55°C
    3.1mm
    6.3mm
    Vishay
    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
    Optek
    Transistor
    -
    70ns
    70ns
    Panel Mount
    Wire
    -
    24.63 x 6.35 x 15.63mm
    15.63mm
    24.63mm
    +70°C
    -40°C
    3.18mm
    6.35mm
    Vishay
    Phototransistor
    1
    10 μ
    8µs
    Through Hole
    -
    4
    24.5 x 6.3 x 11.1mm
    11.1mm
    24.5mm
    85°C
    -55°C
    3.1mm
    6.3mm
    Optek
    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
    ROHM
    Phototransistor
    1
    10µs
    10µs
    Through Hole
    -
    4
    5 x 4.2 x 5.2mm
    5.2mm
    5mm
    +85°C
    -25°C
    2mm
    4.2mm
    Omron
    Phototransistor
    1
    -
    -
    Screw Mount
    -
    3
    7 x 11 x 34mm
    34mm
    7mm
    +75°C
    -25°C
    5mm
    11mm
    Optek
    Transistor
    -
    -
    -
    Free Hanging
    Wire
    -
    15.24 x 6.35 x 8.89mm
    8.89mm
    15.24mm
    +85°C
    -40°C
    2.03mm
    6.35mm
    Sharp
    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
    Omron
    Phototransistor
    1
    -
    -
    Screw Mount
    -
    3
    7 x 11 x 34mm
    34mm
    7mm
    +75°C
    -25°C
    5mm
    11mm
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