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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KPC4520ETLD


Optocouplers SOP-4_P2.54 RoHS
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Cosmo 2134
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AUD 0.4085
Multiples of: 5

VOH1016AD


High Speed Optocouplers 1MBps Schmitt-Trigr DIP-6
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Vishay 2030
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AUD 0.5641
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EL0530


1Mbit/s -0.5V~30V 10kV/us DC SOP-8 Logic Output Optoisolators ROHS
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AOTE 2026
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AUD 1.4837
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6N138M


DIP-8 Optocouplers - Logic Output ROHS
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Youtai 2022
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AUD 0.2488
Multiples of: 5

FOD817300W


Transistor Output Optocouplers Phototransistor Output
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ON Semiconductor 2021
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AUD 0.1681
Multiples of: 1

ATM3051-CuH-SE


100mA 60mA 600V 1.5V Two-way thyristor SOP-4 Triac, SCR Output Optoisolators ROHS
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AOTE 2017
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AUD 0.1439
Multiples of: 5

6N139M


High Speed Optocouplers Darlington 100KBd Transistor Output
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Lite-On 2013
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AUD 0.3787
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LTV-244


Optocouplers SO-16_4.4mm RoHS
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Lite-On 1651
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AUD 0.864
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LTV816D-S


Optocouplers SOP-4 RoHS
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Youtai 1542
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AUD 0.0473
Multiples of: 10

SFH6106-1


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 89
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AUD 0.4431
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