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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SFH6186-3T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 898
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AUD 0.44
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NTE3086


Optocoupler DC-IN 2-CH Transistor DC-OUT 8-Pin PDIP
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NTE 28
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AUD 5.75
Multiples of: 1

AB45S


Optocoupler; SMD; Ch: 1; OUT: MOSFET; SOP4; 45; 60V
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MGT Brightek 27
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AUD 2.9556
Multiples of: 1

IS620XSM


Optotriac; 5.3kV; Uout:600V; zero voltage crossing driver
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Isocom 26
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AUD 0.6556
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6N137SDVM


High Speed Optocouplers High Speed 10MBit/s Logic Gate Optocouplers
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ON Semiconductor 26
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AUD 1.2122
Multiples of: 1

LOC117P


IXYS Integrated Circuits High Linearity Optocouplers Single Linear Optocoupler
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IXYS 26
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AUD 2.8889
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SFH601-3


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 25
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AUD 0.6615
Multiples of: 1

FOD3120SDV


Logic Output Opto-couplers Optocoupl Logic-Out Push-Pul DC-In 1-Ch
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ON Semiconductor 25
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AUD 2.63
Multiples of: 1

HCPL-0531-000E


High Speed Optocouplers 1MBd 2Ch 16mA
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Broadcom 25
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AUD 3.9111
Multiples of: 1

NTE3088


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP
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NTE 25
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AUD 6.23
Multiples of: 1

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