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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OPI1264C


Transistor Output Optocouplers Output Photosensor Input Diode
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TT Electronics 2124
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AUD 4.4873
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TLP293(V4-BLTL,E(T


SOIC-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2122
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AUD 0.3986
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PS2702-1-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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CEL 2120
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AUD 1.7216
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ACPL-217-50AE


Transistor Output Optocouplers 3000Vrms 50% CTR
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Broadcom 2119
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AUD 0.72
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HCPL0600


High Speed Optocouplers 10MBit Optocoupler HS Logic Gate
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ON Semiconductor 2114
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AUD 0.9687
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VOH1016AD


High Speed Optocouplers 1MBps Schmitt-Trigr DIP-6
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Vishay 2113
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AUD 0.6146
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4N35


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:3.55kV; DIP6
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Lite-On 2108
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AUD 0.1606
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TLP385(GRH-TPL,E(T


Optocouplers SMD-4 RoHS
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Toshiba 2105
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AUD 0.5109
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4N26


Optoisolator Transistor with Base Output 5000Vrms 1 Channel 6-DIP
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Vishay 2093
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AUD 0.2863
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MOC205M


Optoisolator Transistor with Base Output 2500Vrms 1 Channel 8-SOIC
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ON Semiconductor 2003
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AUD 0.3562
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