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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FOD817300


Transistor Output Optocouplers Phototransistor Output
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ON Semiconductor 1883
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AUD 0.2574
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Hot VO0661T


Logic Output Optoisolator 10MBd Open Drain 4000Vrms 2 Channel 15kV/µs CMTI 8-SOIC
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Vishay 1882
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AUD 2.5333
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ZSPC-817-Z2


SMD Optocouplers - Phototransistor Output ROHS
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Chau Light 1881
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AUD 0.0341
Multiples of: 20

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 0.6006
Multiples of: 1

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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4N28SR2VM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 1876
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AUD 0.3632
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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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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

CNY17-2X019


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 1871
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AUD 0.4644
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TLP291(GRL-TP,SE(T


Optocouplers SO-4 RoHS
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Toshiba 1376
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AUD 0.2889
Multiples of: 1

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