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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PC817X2NSZ2B


Optocouplers DIP-4 RoHS
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Sharp 970
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AUD 0.1545
Multiples of: 5

AT4N32-CuH-S


100mA 5kV 1V@2mA,8mA 1 3V 1.3V DC SMD-6P Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 970
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AUD 0.1929
Multiples of: 5

TCDT1103G


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 970
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AUD 0.2745
Multiples of: 1

SFH617A-2XSMT&R


SMD-4 Transistor Output Optocoupler ROHS
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Isocom 970
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AUD 0.2795
Multiples of: 5

4N38SM


Fairchild Semiconductor Transistor Output Optocouplers
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ON Semiconductor 970
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AUD 0.4034
Multiples of: 1

MOC3011SR2VM


Fairchild Semiconductor Triac & SCR Output Optocouplers 6Pin 250V Optocoupl Rand Phs Triac Drvr
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ON Semiconductor 970
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AUD 0.4054
Multiples of: 1

MCT61


Optocoupler; THT; Channels:2; Out: transistor; Uinsul:5.3kV; DIP8
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ON Semiconductor 970
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AUD 0.4268
Multiples of: 1000

H11AA4SVM


Fairchild Semiconductor Transistor Output Optocouplers MOT TRANS OUTPUT
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ON Semiconductor 970
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AUD 0.4321
Multiples of: 1

SFH6186-3T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 970
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AUD 0.4375
Multiples of: 1000

MOC3043SVM


Triac & SCR Output Optocouplers 6Pin400V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 970
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AUD 0.5076
Multiples of: 1

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