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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4N35-X016


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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Vishay 1810
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AUD 0.3859
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SFH6345-X019


High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 1808
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AUD 1.3417
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VOD211T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SOIC8
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Vishay 1807
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AUD 0.6577
Multiples of: 1

SFH6345-X016


High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 1807
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AUD 1.2872
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ACPL-C87AT-500E


Broadcom Avago Optically Isolated Amplifiers Precision Iso-Amp
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Broadcom 1807
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AUD 2.4678
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TLP627(F)


Transistor Output Optocouplers 300V Photocoupler 5000 Vrms 150 IC
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Toshiba 1806
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AUD 0.828
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TCDT1120G


Transistor Output Optocouplers Phototransistor Out Single CTR > 40%
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Vishay 1805
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AUD 0.3056
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CNY172SM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 1804
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AUD 0.321
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Hot HCPL0611


High Speed Optocouplers OPTO LIGHTING
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ON Semiconductor 1803
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AUD 0.9342
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Hot IL205AT


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 1800
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AUD 0.3587
Multiples of: 1

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