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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VO617A


Transistor Output Optocouplers Phototransistor Out CTR 50-600%
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Vishay 5674
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AUD 0.1681
Multiples of: 1

MOC205R2VM


Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor
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ON Semiconductor 3955
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AUD 0.3206
Multiples of: 1

PS2761B-1-F3-L-A


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin SOP T/R
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CEL 3395
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AUD 0.7607
Multiples of: 25

VO610A-1


Transistor Output Optocouplers Phototransistor Out CTR 40-80%
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Vishay 3394
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AUD 0.2153
Multiples of: 1

CNY17F4SR2M


Transistor Output Optocouplers Optocoupler Phototrans No Base
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ON Semiconductor 3393
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AUD 0.3822
Multiples of: 1

HCNR200-550E


Optocoupler DC-IN 1-CH Linear Photovoltaic DC-OUT 8-Pin PDIP W SMD T/R
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Broadcom 3356
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AUD 1.5805
Multiples of: 1

RV1S9160ACCSP-100C#SC0


High Speed Optocouplers HI-SPD OPTOCPLR SO-5
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Renesas 3311
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AUD 3.3157
Multiples of: 1

VO610A-2


Transistor Output Optocouplers Phototransistor Out CTR 63-125%
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Vishay 2876
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AUD 0.1807
Multiples of: 1

IL4218


Triac & SCR Output Optocouplers Phototriac Output Very Low Input Curr
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Vishay 2232
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AUD 2.1214
Multiples of: 1

TIL191


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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Isocom 0
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AUD 0.234
Multiples of: 1

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