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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TLP2348(TPL,E(T


SOP-5-3.6mm Optocouplers - Logic Output ROHS
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Toshiba 4208
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AUD 0.8968
Multiples of: 1

VOL628AT


Transistor Output Optocouplers CPLR
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Vishay 4201
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AUD 0.625
Multiples of: 1

H11L1


Logic Output Opto-couplers Optocouplers
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Everlight 4190
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AUD 0.3107
Multiples of: 5

TLP290(GR,SE(T


Optocoupler AC-IN 1-CH Transistor DC-OUT 4-Pin SO T/R
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Toshiba 4185
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AUD 0.4341
Multiples of: 4315

TCMT4600


Transistor Output Optocouplers Phototransistor Out Quad CTR 80-300%
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Vishay 4183
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AUD 1.2999
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MOC205R2M


Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor
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ON Semiconductor 4181
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AUD 0.3963
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HCPL0701R2


Fairchild Semiconductor High Speed Optocouplers Hi Gain Optocoupler 1Ch LC Darlington
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ON Semiconductor 4173
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AUD 1.7984
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MTLP521-1GB(DIP)


DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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MSKSEMI 4166
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AUD 0.1144
Multiples of: 5

TCMT1101


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
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Vishay 4160
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AUD 0.3058
Multiples of: 1

FODM217AR2V


Transistor Output Optocouplers 4SO TR
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ON Semiconductor 4153
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AUD 0.309
Multiples of: 1

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