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 SFH6106-1T


Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
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Vishay 791
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AUD 0.432
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HCPL-4100-500E


Avago Technologies Logic Output Optocouplers 20mA Current Loop
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Broadcom 791
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AUD 5.6503
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HCPL-354-000E


Transistor Output Optocouplers 3750 Vrms 20% CTR
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Broadcom 790
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AUD 0.3364
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4N26TVM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 790
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AUD 0.3633
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TCLT1012


Transistor Output Optocouplers Phototransistor 63-125% CTR 10mA
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Vishay 790
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AUD 0.4725
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CTT2223


Triac Optocouplers DIP-7 RoHS
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CT Micro International 790
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AUD 0.637
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VO615A-5X009T


Transistor Output Optocouplers H.Temp Phototrnstr 50-150% CTR
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Vishay 789
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AUD 0.1935
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ACPL-054L-560E


Avago Technologies High Speed Optocouplers Optocouplers 1MBd
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Broadcom 787
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AUD 1.9473
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TLP385(D4GR-TR,E(T


SOP-4-300mil-2.54mm Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 785
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AUD 0.3086
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MOC8106SR2M


Transistor Output Optocouplers 6-Pin Optocoupler Phototrans No Base
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ON Semiconductor 781
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AUD 0.3599
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