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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CYMOC3051


Photovoltaic Output Optoisolators
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OCIC 194
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AUD 0.1814
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CNY17F-2S-TA1


Transistor Output Optocouplers HCEV, 63%, 5KV
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Lite-On 194
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AUD 0.2499
Multiples of: 1

VOT8024AB-T2


Triac & SCR Output Optocouplers PhotoTRIAC 800V ZC SMD4 180 deg
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Vishay 194
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AUD 0.4856
Multiples of: 1

14230434110


Triac & SCR Output Optocouplers WL-OCTR Optocoupler Triac ZC / WE30x-4L DIP 4 M-Type 400V 5mA ZC
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Wurth 194
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AUD 0.6364
Multiples of: 1

14230626111


Triac & SCR Output Optocouplers WL-OCTR Optocoupler Triac ZC / WE30x DIP 6 M-Type 600V 10mA ZC
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Wurth 194
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AUD 0.9857
Multiples of: 1

Hot CNY171SR2VM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 192
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AUD 0.296
Multiples of: 1

HCPL-3180-000E


High Speed Optocouplers 2.0A IGBT Gate Drive
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Broadcom 192
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AUD 1.8402
Multiples of: 1

PM1204


IXYS Integrated Circuits Triac & SCR Output Optocouplers 500mA SPST-NO
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IXYS 192
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AUD 5.72
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4N49


Optek TT Electronics Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 190
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AUD 57.9071
Multiples of: 1

AT851-CuH-D


5kV 60mA 400mV@1mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 0
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AUD 0.2146
Multiples of: 5

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