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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H11F3SR2M


MOSFET Output Optocouplers FET Bilateral analog
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ON Semiconductor 773
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AUD 0.8454
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SFH620AGB-X019T


Triac & SCR Output Optocouplers AC Input, Phtotrnstr 100-600% CTR VDE
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Vishay 772
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AUD 0.5453
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6N136SDVM


Fairchild Semiconductor High Speed Optocouplers 3.81 x 9.65 x 6.6mm 8 Lead Surface Mount
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ON Semiconductor 772
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AUD 1.1591
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HCPL2611SV


High Speed Optocouplers 13 Mbit Optocoupler 1Ch HS Logic Gate
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ON Semiconductor 772
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AUD 2.3661
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TLP291(GRH-TP,SE


Toshiba Transistor Output Optocouplers X36 PBF Transistor Couplr ACInput 110C
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Toshiba 771
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AUD 0.1938
Multiples of: 5

4N25-X009


Transistor Output Optocouplers Phototransistor Out Single CTR>20%
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Vishay 771
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AUD 0.3049
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VO615A-2X009T


Transistor Output Optocouplers Optocplr 63-125% CTR 10mA SMD-4
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Vishay 770
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AUD 0.165
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Hot FOD2743B


Transistor Output Optocouplers Error Amplifier Optocoupler
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ON Semiconductor 770
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AUD 1.08
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H11G2SM


Transistor Output Optocouplers Hi Volt Photodarling
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ON Semiconductor 769
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AUD 0.5154
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Hot FOD2711A


Transistor Output Optocouplers Isolated Error Amp Optocoupler
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ON Semiconductor 768
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AUD 0.636
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