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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CNY17-4X009T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 1944
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AUD 0.4137
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CNY17-1S


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Lite-On 4
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AUD 0.2216
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CNY17F-4M


Transistor Output Optocouplers HCEV, 160%, 5KV
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Lite-On 4
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AUD 0.2381
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LOC111S


High Linearity Optocouplers Linear Optocoupler
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IXYS 4
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AUD 3.8657
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HCPL-817-W6DE


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Broadcom 3
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AUD 0.3281
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4N38VM


Fairchild Semiconductor Transistor Output Optocouplers
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ON Semiconductor 3
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AUD 0.4019
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MOC3043TVM


Triac & SCR Output Optocouplers 6Pin400V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 3
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AUD 0.5779
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IS622XSM


Optotriac; 5.3kV; Uout:600V; zero voltage crossing driver
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Isocom 3
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AUD 0.7021
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FOD420V


Fairchild Semiconductor Triac & SCR Output Optocouplers Random Phase Triac Snubberless
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ON Semiconductor 3
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AUD 3.1032
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H11G1SM


Transistor Output Optocouplers Hi Volt Photodarling
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ON Semiconductor 0
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AUD 0.4224
Multiples of: 1

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