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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CNY17-4X007


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 5022
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AUD 0.3269
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VOL617A-1X001T


Transistor Output Optocouplers Phototransistor Out CTR 40-80% IF=5MA
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Vishay 4989
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AUD 0.2577
Multiples of: 1

VO617A-9


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 200-400%
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Vishay 4955
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AUD 0.1681
Multiples of: 1

4N37M


Optoisolator Transistor with Base Output 1500Vrms 1 Channel 6-DIP
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Lite-On 4955
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AUD 0.2013
Multiples of: 1

CNY17-4-L


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Lite-On 4933
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AUD 0.188
Multiples of: 1

SFH615A-2X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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Vishay 4922
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AUD 0.4039
Multiples of: 1

CQY80N


Transistor Output Optocouplers Phototransistor Out Single CTR >50%
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Vishay 4826
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AUD 0.2813
Multiples of: 1

VOL617A-4X001T


Transistor Output Optocouplers Phototransistor Out CTR 100-200% IF=5MA
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Vishay 4545
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AUD 0.2404
Multiples of: 1

CYTLP184(GB-TP)


SOP-4 Optocouplers - Phototransistor Output ROHS
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OCIC 4529
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AUD 0.1053
Multiples of: 5

SFH691AT


Transistor Output Optocouplers Phototransistor Out AC-In CTR>50-300%
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Vishay 1864
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AUD 0.608
Multiples of: 1

First...8687888990...

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