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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VO205AT


Transistor Output Optocouplers Optocoupler SOIC8
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Vishay 3697
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AUD 0.3405
Multiples of: 1

CQY80NG


Transistor Output Optocouplers Phototransistor Out Single CTR >50%
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Vishay 3690
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AUD 0.309
Multiples of: 1

FOD817CS


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 3686
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AUD 0.2262
Multiples of: 250

SFH620A-3X006


Transistor Output Optocouplers Phototransistor Out AC-In CTR>100-320%
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Vishay 3686
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AUD 0.506
Multiples of: 100

SFH618A-3X001


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 3686
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AUD 0.6431
Multiples of: 1

VOS615A-2X001T


Transistor Output Optocouplers CTR 63-125% 10MA
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Vishay 3685
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AUD 0.2514
Multiples of: 1

VO615A-9X016


Transistor Output Optocouplers H.Temp Phototrnstr 200-400% CTR, VDE
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Vishay 3684
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AUD 0.1833
Multiples of: 1

FOD4208TV


Fairchild Semiconductor Triac & SCR Output Optocouplers Random Phase Triac Snubberless
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ON Semiconductor 3684
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AUD 3.1944
Multiples of: 1

LTV-816M


Lite-On Transistor Output Optocouplers Optocoupler
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Lite-On 3676
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AUD 0.1558
Multiples of: 1

Hot HCPL0611


High Speed Optocouplers OPTO LIGHTING
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ON Semiconductor 3673
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AUD 1.0022
Multiples of: 1

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