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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OPI1280-032


Optek TT Electronics Transistor Output Optocouplers Optical Interrupter
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TT Electronics 897
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AUD 10.0577
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VO617A-7


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 80-160%
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Vishay 896
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AUD 0.1729
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SFH1617A-2X017T


Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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Vishay 896
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AUD 0.7923
Multiples of: 1

SFH601-4X007T


Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%
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Vishay 892
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AUD 0.9962
Multiples of: 1

ILQ2-X001


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Quad CTR > 100%
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Vishay 892
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AUD 2.0192
Multiples of: 1

FODM217CV


Transistor Output Optocouplers 4SO TR
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ON Semiconductor 891
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AUD 0.6692
Multiples of: 1

CNY17-1.


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 890
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AUD 0.3003
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CNY171TVM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 888
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AUD 0.3264
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VOT8024AB-V


Triac & SCR Output Optocouplers PhotoTRIAC 800V ZC SMD4, VDE
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Vishay 888
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AUD 0.5517
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Hot SFH610A-2


Transistor Output Optocouplers RECOMMENDED ALT 78-VO610A-2
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Vishay 887
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AUD 0.3867
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