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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TCLT1003


Transistor Output Optocouplers Phototransistor Out
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Vishay 38806
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AUD 0.3315
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PC817X3NIPW


Sharp Microelectronics
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Sharp 3865
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AUD 0.1086
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CNY17-3X009T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 2744
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AUD 0.3835
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TLP387(D4-TPR,E(T


SOIC-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2740
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AUD 0.7272
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H11N1SVM


High Speed Optocouplers Optocoupler LC Schmitt Trigger
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ON Semiconductor 2720
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AUD 5.4579
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VOM618A-X001T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out CTR 50-600% 1mA VDE
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Vishay 2712
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AUD 0.2791
Multiples of: 1

TLP291(Y-TP,SE


Toshiba Transistor Output Optocouplers X36 PBF Transistor Couplr ACInput 110C
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Toshiba 2698
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AUD 0.3615
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TLP3905(V4-TPL,E


SO-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2666
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AUD 1.4213
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VO615A-4


Vishay Semiconductors Transistor Output Optocouplers Optocoupler DIP4
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Vishay 2626
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AUD 0.1757
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EL817S1(C)(TU)-FV


Optocouplers SMD RoHS
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Everlight 2526
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AUD 0.079
Multiples of: 5

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