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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4N38SR2M


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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ON Semiconductor 408
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AUD 0.3119
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EL2630


High Speed Optocouplers High Speed Thru-Hole 10MB/s
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Everlight 54
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AUD 2.006
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OLI500


Transistor Output Optocouplers Miniature High CMR High-speed Logic Gate Optocoupler for Hybrid Assembly
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Skyworks 21
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AUD 80.7885
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H11AA4M


Transistor Output Optocouplers Optocouplers
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Everlight 20
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AUD 1.8597
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MOC3081SR2VM


Triac & SCR Output Optocouplers 6Pin800V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 19
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AUD 0.6206
Multiples of: 1

VO4156M-X006


Triac & SCR Output Optocouplers Zero Crossing Photo Triac 600V 3mA
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Vishay 19
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AUD 1.5463
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X4IAC24


Transistor Output Optocouplers X4 Series - LED & Fuse
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Sensata 19
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AUD 23.0234
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X4IAC15A


Transistor Output Optocouplers X4 Series - LED & Fuse
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Sensata 19
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AUD 23.0234
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X4IAC5A


Transistor Output Optocouplers X4 Series - LED & Fuse
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Sensata 19
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AUD 29.7865
Multiples of: 1

FODM8071


High Speed Optocouplers High Noise Immunity 3.3/5V Logic Gat Out
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ON Semiconductor 17
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AUD 3.594
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