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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Hot MOC3082M


Triac & SCR Output Optocouplers 800V Optocoupler Triac Driver ZC
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ON Semiconductor 2172
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AUD 0.8862
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6N139M


High Speed Optocouplers 1-Ch Low Input Curr Hi Gain Optocoupler
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ON Semiconductor 1473
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AUD 0.6961
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MOC3061XSM


Optotriac; 5.3kV; Uout:600V; zero voltage crossing driver
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Isocom 1472
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AUD 0.6248
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HCPL-063N-500E


Optocoupler Logic-Out Open Collector DC-IN 2-CH 8-Pin SOIC T/R
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Broadcom 1470
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AUD 2.5751
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AT3083-CuH-DE


100mA 60mA 800V 1.23V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1455
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AUD 0.159
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6N138S


High Speed Optocouplers Darlington 100KBd Transistor Output
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Lite-On 1449
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AUD 0.4214
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VO615A-4X018T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 1365
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AUD 0.1855
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EL357B


SOP-4 Optocouplers - Phototransistor Output ROHS
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GOODWORK 1241
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AUD 0.0731
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MOC3021M


100mA 60mA 400V 1.15V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 58
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AUD 0.1485
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VO615A-6X017T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 0
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AUD 0.1828
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