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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ACPL-C797-500E


Avago Technologies Optically Isolated Amplifiers Isolated Sigma-Delta
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Broadcom 843
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AUD 1.9857
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FOD3184TV


Fairchild Semiconductor Logic Output Optocouplers 3A Out, Hi-Speed Gate Drvr Optocouplr
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ON Semiconductor 843
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AUD 2.09
Multiples of: 1

H11F3VM


Fairchild Semiconductor MOSFET Output Optocouplers FET Bilateral analog
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ON Semiconductor 843
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AUD 3.1397
Multiples of: 1

HCPL-2400-000E


High Speed Optocouplers 20MBd 1Ch 4mA
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Broadcom 843
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AUD 6.42
Multiples of: 1

VOS618A-7T


Transistor Output Optocouplers CTR 80-160% 1mA
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Vishay 842
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AUD 0.2719
Multiples of: 1

APV3111GV1Y


SSOP-4-2.6mm Transistor, Photovoltaic Output Optoisolators ROHS
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Panasonic 842
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AUD 4.0986
Multiples of: 1

FOD3125


Optocoupler Logic-Out Push-Pull DC-IN 1-CH 8-Pin PDIP Tube
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ON Semiconductor 841
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AUD 2.9723
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TCMT1117


Transistor Output Optocouplers Phototransistor 80-160% CTR 5mA VDE
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Vishay 840
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AUD 0.2805
Multiples of: 1

CNY17F4VM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Phototrans No Base
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ON Semiconductor 840
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AUD 0.5458
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AT3051-CuH-SE


100mA 60mA 400V 1.18V Two-way thyristor SMD-6P Triac, SCR Output Optoisolators ROHS
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AOTE 839
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AUD 0.1541
Multiples of: 5

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