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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SFH620A-2X007T


Transistor Output Optocouplers Phototransistor Out AC-In CTR>63-200%
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Vishay 807
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AUD 0.506
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HCPL2531VM


Fairchild Semiconductor High Speed Optocouplers
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ON Semiconductor 807
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AUD 1.2697
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ILQ621


Transistor Output Optocouplers Phototransistor Out Quad CTR >50%
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Vishay 806
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AUD 1.68
Multiples of: 1

PS2805C-4-A


Transistor Output Optocouplers Quad sgl Tr AC Couplr
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CEL 806
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AUD 4.4943
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AT3081-CuH-SE


100mA 60mA 800V 1.23V Two-way thyristor SMD-6P Triac, SCR Output Optoisolators ROHS
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AOTE 805
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AUD 0.1765
Multiples of: 5

PC3H7CJ0001H


Transistor Output Optocouplers OPTOISOLATOR TRANSISTOR SMD, Optoisolator Output Channel
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Sharp 805
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AUD 0.2798
Multiples of: 5

H11D1-X009T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR > 20%
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Vishay 805
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AUD 1.0749
Multiples of: 1

HCPL-0501-500E


High Speed Optocouplers 1MBd 1Ch 16mA
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Broadcom 804
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AUD 0.8827
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CPC1580PTR


IXYS Integrated Circuits Logic Output Optocouplers Optically Isolated Gate Driver
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IXYS 803
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AUD 5.0914
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H11AG1TVM


Fairchild Semiconductor Transistor Output Optocouplers LC Phototransistor
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ON Semiconductor 802
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AUD 0.9096
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