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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MPC357B


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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MSKSEMI 2754
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AUD 0.0634
Multiples of: 10

CNY75GA


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 2754
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AUD 0.2933
Multiples of: 1

FODM121GR4


Transistor Output Optocouplers 4SO TR
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ON Semiconductor 2740
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AUD 0.2741
Multiples of: 1

VO615A-3X017T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 2733
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AUD 0.1729
Multiples of: 1

MOC8106SM


Transistor Output Optocouplers 6-Pin Optocoupler Phototrans No Base
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ON Semiconductor 2731
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AUD 0.3195
Multiples of: 1

FODM214


Optocoupler; SMD; Ch: 1; OUT: transistor; Uinsul: 3.75kV; Uce: 80V
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ON Semiconductor 2727
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AUD 0.4844
Multiples of: 1

FODM452R2V


Fairchild Semiconductor High Speed Optocouplers HS Transistor Output Optocoupler
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ON Semiconductor 2727
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AUD 0.8329
Multiples of: 1

LTV-217D


3.75kV 50mA 200mV@1mA,10mA 1 6V 1.4V DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 2725
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AUD 0.1063
Multiples of: 5

VO615A-7X017T


Transistor Output Optocouplers CPLR
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Vishay 2725
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AUD 0.1729
Multiples of: 1

CNY17F-1


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Lite-On 2725
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AUD 0.1763
Multiples of: 1

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