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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VOS615A-1T


Transistor Output Optocouplers CPLR
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Vishay 3676
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AUD 0.2463
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Hot SFH6206-3T


Transistor Output Optocouplers Phototransistor Out AC-In CTR>100-320%
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Vishay 3550
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AUD 0.4996
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HCPL-0201-000E


High Speed Optocouplers 5MBd 1Ch 1.6mA
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Broadcom 1166
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AUD 3.3015
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TLP182(BL,E


Transistor Output Optocouplers X36 PBF Trans Opto couplr 125C3750Vrms
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Toshiba 783
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AUD 0.2308
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APV1122AX


Photodiode Output Optocouplers Driver 6-pin DIP SMD Driver 6-pin DIP SMD
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Panasonic 783
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AUD 2.7746
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TLP385(E


Transistor Output Optocouplers GaAs Infrared and Photo-Transistor
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Toshiba 782
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AUD 0.2758
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CNY17-1.


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 777
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AUD 0.2939
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FOD420SV


Fairchild Semiconductor Triac & SCR Output Optocouplers Random Phase Triac Snubberless
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ON Semiconductor 776
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AUD 2.8896
Multiples of: 1

TLP521-1X


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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Isocom 688
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AUD 0.4451
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FOD8333


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 679
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AUD 4.8104
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