Optocouplers / Photocouplers

Optocouplers are a type of isolator that use a low-power optical signal to transmit one signal from one circuit to another independent circuit. Optocouplers are comprised of an infrared LED light source and an integrated photo detector which usually consists of a photodiode and detector circuit. This optical link or coupling provides electrical isolation between the two circuits which makes the trouble shooting and reliability of circuits more straightforward. These devices are often used to provide electrical isolation between digital signals on the same board, but they are also commonly used in medical and industrial instruments, motor control systems, and signal conditioning circuits. Optocouplers have very high input-to-output isolation voltage and low capacitance, which makes them suitable for signal transmission in high speed applications. Additionally, they manage the call back current of the circuit they are connecting, allowing them to protect against overloads.
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PS2805-1-A


Transistor Output Optocouplers Optocoupler 4-pin SSOP
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Renesas 1885
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AUD 0.9774
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FOD817300


Transistor Output Optocouplers Phototransistor Output
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ON Semiconductor 1883
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AUD 0.2574
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EL814S(A)(TU)


Transistor Output Optocouplers Optocoupler Transistor AC Input
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Everlight 1881
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AUD 0.1124
Multiples of: 5

MOC3082SM


Fairchild Semiconductor Triac & SCR Output Optocouplers 6Pin800V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 1879
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AUD 0.5648
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515-1232F


Transistor Output Optocouplers LIGHT PIPE
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Dialight 1879
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AUD 0.7372
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4N38M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:7.5kV; DIP6
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ON Semiconductor 1878
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AUD 0.2972
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PS2702-1-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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CEL 1875
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AUD 1.7216
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IL4218-X019T


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 1875
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AUD 3.8333
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MOCD208R2M


Transistor Output Optocouplers 8-Pin Optocoupler 2Ch Phototransistor
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ON Semiconductor 1874
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AUD 0.4139
Multiples of: 1

TLP785(BLL-TP6,F(C


SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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Toshiba 1872
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AUD 0.1449
Multiples of: 5

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