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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6N136SDVM


Fairchild Semiconductor High Speed Optocouplers 3.81 x 9.65 x 6.6mm 8 Lead Surface Mount
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ON Semiconductor 772
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AUD 1.1591
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Hot FOD2743B


Transistor Output Optocouplers Error Amplifier Optocoupler
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ON Semiconductor 772
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AUD 1.1778
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HCPL2611SV


High Speed Optocouplers 13 Mbit Optocoupler 1Ch HS Logic Gate
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ON Semiconductor 772
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AUD 2.753
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Hot FOD2711A


Transistor Output Optocouplers Isolated Error Amp Optocoupler
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ON Semiconductor 768
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AUD 0.6933
Multiples of: 1

6N139


High Speed Optocouplers Darlington 100KBd Transistor Output
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Lite-On 767
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AUD 0.4086
Multiples of: 1

MOC3012M


Triac & SCR Output Optocouplers DIP-6 NON-ZERO TRIAC
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ON Semiconductor 767
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AUD 0.4278
Multiples of: 1

CYPC817A


DIP-4 Optocouplers - Phototransistor Output ROHS
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OCIC 766
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AUD 0.0373
Multiples of: 10

SL3021


SMD Optocouplers - Phototransistor Output ROHS
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SLKORMICRO 766
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AUD 0.3021
Multiples of: 5

ACPL-32JT-500E


Logic Output Opto-couplers Auto Optocoupler T/RLF
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Broadcom 766
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AUD 5.7352
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4N33


Transistor Output Optocouplers Optocouplers
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Everlight 765
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AUD 0.3844
Multiples of: 2

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