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Same day shipping on in stock items. Order by 2pmPST.
Same day shipping on in stock items. Order by 2pmPST.

Infrared LEDs & Phototransistors

Take a minute to browse Circuit Specialists' array of affordable infrared LEDs and phototransistors. Our RoHS-compliant infrared emitting diodes are made with gallium arsenide and are mechanically and spectrally matched to the phototransistor. Infrared phototransistors are incredibly bright and reliable and consume very little energy. We also carry cadmium sulfide (CdS) photocells with variable resistance — high resistance in darkness and low resistance when illuminated. Save more when you buy in bulk.

  • Original price $4.24 - Original price $4.24
    Original price
    $4.24
    $4.24 - $4.24
    Current price $4.24

    940NM Fiber Optic Infrared LED

    Industrial Fiber Optics
    Currently on Backorder

    The IF-E91A is a high-output medium-speed infrared LED in a “connector-less” style plastic fiber optic package. The output spectrum peaks at 950 nm...

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    Original price $4.24 - Original price $4.24
    Original price
    $4.24
    $4.24 - $4.24
    Current price $4.24
  • Original price $4.54 - Original price $4.54
    Original price
    $4.54
    $4.54 - $4.54
    Current price $4.54

    Fiber Optic Phototransistor

    Industrial Fiber Optics
    Currently on Backorder

    The IF-D92 is a high-sensitivity NPN phototransistor detector housed in a “connector-less” style plastic fiber optic package. Optical response of t...

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    Original price $4.54 - Original price $4.54
    Original price
    $4.54
    $4.54 - $4.54
    Current price $4.54
  • Original price $0.32 - Original price $0.32
    Original price
    $0.32
    $0.32 - $0.32
    Current price $0.32

    3mm Blinking LED, Red-Diffused

    Circuit Specialists
    Out of stock

    Features T-1 PACKAGE WITH RECTANGULAR BASE. WITH BUILT-IN BLINKING IC. OPERATION VOLTAGE FROM 3.5V TO 14V. BLINKING FREQUENCY FROM 3.0Hz TO 1.5Hz....

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    Original price $0.32 - Original price $0.32
    Original price
    $0.32
    $0.32 - $0.32
    Current price $0.32
    Sold out
  • Original price $0.41 - Original price $0.41
    Original price
    $0.41
    $0.41 - $0.41
    Current price $0.41

    Infrared Emitting Diode

    Circuit Specialists
    791 in stock

    Features F3 Made with Gallium Arsenide Infrared Emitting diodes. Mechanically and spectrally matched to the phototransistor. Blue transparent lens...

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    Original price $0.41 - Original price $0.41
    Original price
    $0.41
    $0.41 - $0.41
    Current price $0.41
  • Original price $0.09 - Original price $0.09
    Original price
    $0.09
    $0.09 - $0.09
    Current price $0.09

    5mm InfraRed LED (5B5D10CRC)

    Circuit Specialists
    Out of stock

    5mm Water Clear Lens Tollerance +/-0.25 (0.1) Unit: mm (inch) Absolute Maximum Rating (Ta = 25oC Forward Current IF (mA) Pulse Forwar...

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    Original price $0.09 - Original price $0.09
    Original price
    $0.09
    $0.09 - $0.09
    Current price $0.09
    Sold out
  • Original price $0.51 - Original price $0.51
    Original price
    $0.51
    $0.51 - $0.51
    Current price $0.51

    Phototransistor

    Circuit Specialists
    115 in stock

    Original price $0.51 - Original price $0.51
    Original price
    $0.51
    $0.51 - $0.51
    Current price $0.51
  • Original price $1.29 - Original price $1.29
    Original price
    $1.29
    $1.29 - $1.29
    Current price $1.29

    Photocell CdS

    Circuit Specialists
    219 in stock

    Original price $1.29 - Original price $1.29
    Original price
    $1.29
    $1.29 - $1.29
    Current price $1.29
  • Original price $2.62 - Original price $2.62
    Original price
    $2.62
    $2.62 - $2.62
    Current price $2.62

    CdS Photo Cell

    Circuit Specialists
    148 in stock

    Cadmium Sulfur (CdS) Photocell Photo Resistive, Cadmium Sulfide type. Changes resistance with light. High resistance in darkness, low resistance wh...

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    Original price $2.62 - Original price $2.62
    Original price
    $2.62
    $2.62 - $2.62
    Current price $2.62
  • Original price $0.69 - Original price $0.69
    Original price
    $0.69
    $0.69 - $0.69
    Current price $0.69

    T-1-3/4 Infrared Phototransistor

    Circuit Specialists
    419 in stock

    FEATURES High-brightness High reliability Low-voltage characteristics Pb FREE Products RoHS Compliant Data Sheet

    Original price $0.69 - Original price $0.69
    Original price
    $0.69
    $0.69 - $0.69
    Current price $0.69

Take a minute to browse Circuit Specialists' array of affordable infrared LEDs and phototransistors. Our RoHS-compliant infrared emitting diodes are made with gallium arsenide and are mechanically and spectrally matched to the phototransistor. Infrared phototransistors are incredibly bright and reliable and consume very little energy. We also carry cadmium sulfide (CdS) photocells with variable resistance — high resistance in darkness and low resistance when illuminated. Save more when you buy in bulk.

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