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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FODM452


Optocoupler; SMD; Channels:1; Out: transistor; 3.75kV; 1Mbps
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ON Semiconductor 4525
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AUD 0.8119
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IS181B


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV
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Isocom 4515
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AUD 0.2489
Multiples of: 1

FOD817


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 4503
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AUD 0.1676
Multiples of: 1

LTV-702FS


Transistor Output Optocouplers Optocoupler Phototrans
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Lite-On 4494
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AUD 0.2056
Multiples of: 1

MOC3023M


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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Lite-On 4486
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AUD 0.2654
Multiples of: 1

TLP185(Y.SE(T


Transistor Output Optocouplers
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Toshiba 4482
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AUD 0.3844
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PC817X1NSZ1B


Transistor Output Optocouplers Photocoupler
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Sharp 4478
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AUD 0.38
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HCPL-0611-500E


High Speed Optocouplers 10MBd 1Ch 5mA
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Broadcom 4474
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AUD 1.1514
Multiples of: 1

PC123X2YFZ1B


Transistor Output Optocouplers Optoisolator Transistor Output 5000Vrms 1 Channel
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Sharp 4472
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AUD 0.36
Multiples of: 1

TCMT1600


Transistor Output Optocouplers Phototransistor Out Single CTR 80-300%
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Vishay 4447
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AUD 0.3613
Multiples of: 1

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