About Optocouplers / Photocouplers

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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H11N1


OPTOCOUPLER, SCHIMITT TRIGGER
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USD 4.4238
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ACPL-796J-560E


Optically Isolated Amplifiers 5MHz-20MHz,5000 Vrms Sigma-Delta Modulatr
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USD 4.428
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ACPL-K75T-000E


Avago Technologies High Speed Optocouplers Automotive Optocpler
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USD 4.4404
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HCPL-0631#500


Optocoupler Logic-Out Open Collector DC-IN 2-CH 8-Pin SOIC T/R
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USD 4.4468
Multiples of: 1500

HCNW2211-300E


High Speed Optocouplers 5MBd 1Ch 1.6mA
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USD 4.4497
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HCPL-7723


Avago Technologies High Speed Optocouplers 50Mbd 2ns PWD
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USD 4.453
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HCPL-7560-300E


Avago Technologies Optically Isolated Amplifiers Isolated Modulator
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USD 4.453
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HCPL-J312#500


Logic Output Opto-couplers 2.0A IGBT Gate Drive
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USD 4.4842
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TLP3823(F


MOSFET Output Optocouplers Photorelay 3.0A 100V 2500Vrms 720pF 5mA
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Toshiba 0
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USD 4.4842
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FOD053L


High Speed Optocouplers 1 Mbit/s DCHS Transistor - 1kV/us
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USD 4.4848
Multiples of: 1

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