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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PC400J00000F


Logic Output Optoisolator Open Collector 3750Vrms 1 Channel CMTI 5-MFP
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Sharp 13196
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AUD 0.9602
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TLP183(GRH-TPL,E(T


SOIC-4 Optocouplers - Phototransistor Output ROHS
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Toshiba 5917
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AUD 0.3932
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TLP183(YH-TPL,E(T


SOIC-4 Optocouplers - Phototransistor Output ROHS
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Toshiba 5917
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AUD 0.5001
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SFH6186-3X001


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 5905
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AUD 0.4743
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ELR2223


DIP-8 Optocouplers - Thyristor Signal Output ROHS
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Everlight 5888
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AUD 0.5081
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PS2565L1-1-V-A


Transistor Output Optocouplers SGL Tr DC BSI Couplr
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Renesas 5870
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AUD 0.8548
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VOS615AT


Transistor Output Optocouplers Phototransistor 50-600% CTR 10MA
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Vishay 5861
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AUD 0.2897
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VOS617A-X001T


Transistor Output Optocouplers CTR 50-600% 5MA
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Vishay 5820
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AUD 0.2514
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VO3120-X007T


Logic Output Optocouplers 2.5A Current Out IGBT/MOSFET Drvr
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Vishay 5776
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AUD 1.1035
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IL420


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 4248
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AUD 2.3746
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