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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Hot MOC3061M


Optotriac; 5.3kV; Uout:600V; zero voltage crossing driver; DIP6
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ON Semiconductor 12865
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AUD 0.4935
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TLP241A(TP1,F


MOSFET Output Optocouplers Photo-IC 3mA 40V 5000Vrms
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Toshiba 3953
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AUD 1.4239
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TPC816A C9G


Transistor Output Optocouplers Photocoupler DC input 70V 50mA
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Taiwan Semiconductor 1900
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AUD 0.1069
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CNY17F3SM


Transistor Output Optocouplers Optocoupler Phototrans No Base
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ON Semiconductor 1900
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AUD 0.2634
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SFH601-3X016


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 1899
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AUD 0.9346
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ILD610-3


Transistor Output Optocouplers Phototrnstr Dual Ch 100-200% CTR
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Vishay 1899
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AUD 1.7668
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4N35-X017


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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Vishay 1897
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AUD 0.3776
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FOD819


Transistor Output Optocouplers 4PB TR DIP
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ON Semiconductor 1885
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AUD 0.9236
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TLP293-4(LGBTP,E


Transistor Output Optocouplers 4ch Transistor opto coupler
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Toshiba 1268
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AUD 1.1683
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TLP2761(TP,E(O


SOP-6 Logic Output Optoisolators ROHS
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Toshiba 656
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AUD 0.5941
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