Optical switches use light as the medium for switching, using a light source for switching interface operation. They are safe and reliable, as no high voltage or current is used when initiating a switch event. Optical switches are of two types – transmissive and phototransistor output. In a transmissive optical switch, light is passed through a UV-sensitive window. A UV-ridden resistor then disrupts the electric circuit, and the switch activates. These switches are reliable, compact, and low cost. In a phototransistor output optical switch, light is directed towards a phototransistor integrated circuit. This creates current flow and triggers the switch. This kind of optical switch offers greater flexibility in operation and also greater sensitivity.

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    TCPT1350X01


    Optical Switches, Transmissive, Phototransistor Output 1CH 0.3mm APERT SENSOR TRANS
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    This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

    Vishay 37294
    Ships to you
    between Tue. 12 Dec to Thu. 14 Dec
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    USD 0.6003

    Multiples of: 1

    Phototransistor3 mm0.3 mm20 V20 mA25 mASmd/Smt+ 125 C- 40 CTcpt13xxx01Reel25 mAAec - Q101
    OPB804


    Optical Switches, Transmissive, Phototransistor Output .16in SLOT INFRARED
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    This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

    TT Electronics 30734
    Ships to you
    between Tue. 12 Dec to Thu. 14 Dec
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    USD 1.771

    Multiples of: 1

    Phototransistor3.9 mm1.79 mm30 V30 mA50 mAThrough Hole+ 85 C- 40 C Bulk20 mA 
    TCPT1600X01


    Optical Switches, Transmissive, Phototransistor Output Sg Chnl 1.6mA AEC-Q101 Qualified
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    This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

    Vishay 24724
    Ships to you
    between Tue. 12 Dec to Thu. 14 Dec
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    USD 0.8004

    Multiples of: 1

     3 mm0.3 mm20 V20 mA Smd/Smt+ 105 C- 40 C Reel15 mAAec - Q101
    ITR8307/S17/TR8(B)


    Photo Interrupter SMD-4 RoHS
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    This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

    Everlight 23711
    Ships to you
    between Wed. 20 Dec to Mon. 25 Dec
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    USD 0.0892

    Multiples of: 5

                 
    LTH-301-05


    Optical Switches, Transmissive, Phototransistor Output Photointerrupter Phototransistor
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    Lite-On 17644
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    between Tue. 12 Dec to Thu. 14 Dec
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    USD 0.4312

    Multiples of: 1

                 
    OPB821S5Z


    Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch
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    TT Electronics 15029
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    between Tue. 12 Dec to Thu. 14 Dec
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    USD 5.727

    Multiples of: 1

    Phototransistor2.03 mm1.02 mm30 V300 uA50 mAPcb, Wire+ 85 C- 40 C Bulk20 mA 
    TCST1103


    Optical Switches, Transmissive, Phototransistor Output Trans Optical Sensor
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    This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

    Vishay 12061
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    between Wed. 06 Dec to Tue. 12 Dec
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    USD 0.5854

    Multiples of: 1

     3.1 mm1 mm70 V4 mA  + 85 C- 55 C Tube60 mA 
    LTH-301-07


    Optical Switches, Transmissive, Phototransistor Output Photointerrupter Phototransistor
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    Lite-On 9002
    Ships to you
    between Tue. 12 Dec to Thu. 14 Dec
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    USD 0.4174

    Multiples of: 1

     5 mm0.5 mm30 V20 mA Through Hole+ 85 C- 25 C Bulk20 mA 
    TCUT1600X01


    Optical Switches, Transmissive, Phototransistor Output Dual Chnl 1.6mA AEC-Q101 Qualified
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    Vishay 656
    Ships to you
    between Wed. 20 Dec to Mon. 25 Dec
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    USD 0.7776

    Multiples of: 1

     3 mm0.3 mm20 V20 mA Smd/Smt+ 105 C- 40 C Reel15 mAAec - Q101
    RPI-243


    Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER 2mm Gap 4.2x5.2mm
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    ROHM 524
    Ships to you
    between Wed. 20 Dec to Mon. 25 Dec
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    USD 0.3587

    Multiples of: 1

    Phototransistor2 mm0.4 mm30 V30 mA50 mAThrough Hole+ 85 C- 25 CRpi - 243Bulk50 mA