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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4N26-X009


Transistor Output Optocouplers Phototransistor Out CTR>20%
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Vishay 1997
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AUD 0.3049
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4N32VM


Transistor Output Optocouplers Photodarlington
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ON Semiconductor 1989
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AUD 0.3756
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FOD8343R2


Logic Output Optocouplers 3.0AHighSpeedGateDrv OptocoupInStretchSO6
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ON Semiconductor 1986
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AUD 2.5577
Multiples of: 1

VO615A-9X006


Transistor Output Optocouplers H.Temp Phototrnstr 200-400% CTR
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Vishay 1985
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AUD 0.1776
Multiples of: 1

MOCD207D2M


Transistor Output Optocouplers 8-PIN SOIC DUAL-CHANNEL TRNSTR
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ON Semiconductor 1985
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AUD 0.7951
Multiples of: 1

PS2562L1-1-A


Transistor Output Optocouplers Optocoupler 4-pin DIP
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Renesas 1962
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AUD 0.7323
Multiples of: 1

TLP785F(D4GRT7,F(C


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 1925
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AUD 0.1466
Multiples of: 5

VO617A-2X007T


Transistor Output Optocouplers H. Relblty 5300 Vrms 63-125% CTR
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Vishay 1789
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AUD 0.1776
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H11L1


Logic Output Opto-couplers Optocouplers
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Everlight 1576
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AUD 0.3292
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Hot PS9117A-F3-AX


High Speed Optocouplers Hi-Speed Optocplr SO-5
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Renesas 962
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AUD 0.8449
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