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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VO610A-3X009T


Transistor Output Optocouplers Phototransistor Out CTR 100-200%
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Vishay 2302
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AUD 0.2027
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SFH617A-1X007T


Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
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Vishay 2295
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AUD 0.5437
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SFH6345-X009


Vishay Semiconductors High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 2295
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AUD 1.4404
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TLP291(V4GBTP,E(O


SOIC-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2275
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AUD 0.6175
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TCLT1100


Transistor Output Optocouplers Phototransistor Out Single CTR 50-600%
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Vishay 2270
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AUD 0.3363
Multiples of: 1

EL3H7-G


Everlight Transistor Output Optocouplers 50-600CTR 3750Vrms -55 to 110 Op Temp
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Everlight 2249
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AUD 0.24
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Hot H11F1SR2M


MOSFET Output Optocouplers FET Bilateral analog
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ON Semiconductor 2183
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AUD 0.8879
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VO615A-4X017T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 2165
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AUD 0.1917
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VO615A-1X009T


Transistor Output Optocouplers H.Temp Phototrnstr 40-80 % CTR
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Vishay 1278
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AUD 0.1732
Multiples of: 1

MOC206M


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:2.5kV; SO8
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ON Semiconductor 484
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AUD 0.3316
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