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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.
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Original price $4.24 - Original price $4.24Original price$4.24$4.24 - $4.24Current price $4.24940NM Fiber Optic Infrared LED
Industrial Fiber OpticsCurrently on BackorderThe 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...
View full detailsOriginal price $4.24 - Original price $4.24Original price$4.24$4.24 - $4.24Current price $4.24 -
Original price $4.54 - Original price $4.54Original price$4.54$4.54 - $4.54Current price $4.54Fiber Optic Phototransistor
Industrial Fiber OpticsCurrently on BackorderThe IF-D92 is a high-sensitivity NPN phototransistor detector housed in a “connector-less” style plastic fiber optic package. Optical response of t...
View full detailsOriginal price $4.54 - Original price $4.54Original price$4.54$4.54 - $4.54Current price $4.54 -
Original price $0.32 - Original price $0.32Original price$0.32$0.32 - $0.32Current price $0.32
3mm Blinking LED, Red-Diffused
Circuit SpecialistsOut of stockFeatures 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....
View full detailsOriginal price $0.32 - Original price $0.32Original price$0.32$0.32 - $0.32Current price $0.32Sold out -
Original price $0.41 - Original price $0.41Original price$0.41$0.41 - $0.41Current price $0.41Infrared Emitting Diode
Circuit Specialists791 in stockFeatures F3 Made with Gallium Arsenide Infrared Emitting diodes. Mechanically and spectrally matched to the phototransistor. Blue transparent lens...
View full detailsOriginal price $0.41 - Original price $0.41Original price$0.41$0.41 - $0.41Current price $0.41 -
Original price $0.09 - Original price $0.09Original price$0.09$0.09 - $0.09Current price $0.09
5mm InfraRed LED (5B5D10CRC)
Circuit SpecialistsOut of stock5mm Water Clear Lens Tollerance +/-0.25 (0.1) Unit: mm (inch) Absolute Maximum Rating (Ta = 25oC Forward Current IF (mA) Pulse Forwar...
View full detailsOriginal price $0.09 - Original price $0.09Original price$0.09$0.09 - $0.09Current price $0.09Sold out -
Original price $0.51 - Original price $0.51Original price$0.51$0.51 - $0.51Current price $0.51
Phototransistor
Circuit Specialists115 in stockOriginal price $0.51 - Original price $0.51Original price$0.51$0.51 - $0.51Current price $0.51 -
Original price $1.29 - Original price $1.29Original price$1.29$1.29 - $1.29Current price $1.29
Photocell CdS
Circuit Specialists219 in stockOriginal price $1.29 - Original price $1.29Original price$1.29$1.29 - $1.29Current price $1.29 -
Original price $2.62 - Original price $2.62Original price$2.62$2.62 - $2.62Current price $2.62CdS Photo Cell
Circuit Specialists148 in stockCadmium Sulfur (CdS) Photocell Photo Resistive, Cadmium Sulfide type. Changes resistance with light. High resistance in darkness, low resistance wh...
View full detailsOriginal price $2.62 - Original price $2.62Original price$2.62$2.62 - $2.62Current price $2.62 -
Original price $0.69 - Original price $0.69Original price$0.69$0.69 - $0.69Current price $0.69T-1-3/4 Infrared Phototransistor
Circuit Specialists419 in stockFEATURES High-brightness High reliability Low-voltage characteristics Pb FREE Products RoHS Compliant Data Sheet
Original price $0.69 - Original price $0.69Original price$0.69$0.69 - $0.69Current 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.