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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SFH1690BT


Transistor Output Optocouplers Phototransistor Out Single CTR>100-300%
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Vishay 500
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AUD 0.509
Multiples of: 1

4N36


Everlight Transistor Output Optocouplers Optocouplers
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Everlight 445
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AUD 0.257
Multiples of: 2

SL851D


DIP-4 Transistor Output Optocoupler ROHS
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SLKORMICRO 67
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AUD 0.3621
Multiples of: 1

APS1241S


Photodiode Output Optocouplers 20Mbps 4.4x4.3x2.1mm AIGaAs LED, PhotoIC
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Panasonic 66
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AUD 3.1761
Multiples of: 1

TLP292-4(LA-TR,E


3.75kV 50mA 4 1.25V SOIC-16-4.6mm Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 65
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AUD 2.7951
Multiples of: 1

NTE3041


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP
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NTE 65
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AUD 3.1594
Multiples of: 1

Hot LDA201


Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 64
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AUD 0.8776
Multiples of: 1

PS2561L1-1-L-A


Transistor Output Optocouplers Hi-Iso Photo 1-Ch
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CEL 64
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AUD 0.4077
Multiples of: 1

SFH608-4


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 9
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AUD 0.7027
Multiples of: 1

CPC1303G


Transistor Output Optocouplers Optocoupler, Single 5000Vrms I/O
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IXYS 0
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AUD 1.5392
Multiples of: 100

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