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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TLP265J(T7-TPL,E(T


Optotriac; 3.75kV; triac; SO6; Channels:1
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Toshiba 43
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AUD 0.5473
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6N138


High Speed Optocouplers Low Input, High Gain DC Input
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Everlight 43
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AUD 0.9467
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TLP160G(TPL,U,F)


70mA 20mA 400V 1.15V Two-way thyristor SOP-4-2.54mm Triac, SCR Output Optoisolators ROHS
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Toshiba 43
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AUD 1.1167
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NTE3223-4


OPTOCOUPLER QUAD NPN TRANS
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NTE 43
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AUD 4.1533
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HCPL-2602-000E


High Speed Optocouplers 1Ch 5mA 600mW
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Broadcom 43
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AUD 6.4602
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FOD4118


Triac & SCR Output Optocouplers 800V Zero Crossing Triac Driver Output
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ON Semiconductor 42
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AUD 5.9712
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APT1232W


Triac & SCR Output Optocouplers APT Phototriac
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Panasonic 41
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AUD 1.4885
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HCPL-2200-000E


Logic Output Optoisolator 2.5MBd Tri-State 3750Vrms 1 Channel 1kV/µs CMTI 8-DIP
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Broadcom 41
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AUD 3.9778
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TLP521-1X


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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Isocom 40
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AUD 0.303
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MOC8104-X019T


Transistor Output Optocouplers Phototransistor Out Single CTR>160-256%
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Vishay 40
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AUD 0.7944
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