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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SFH628A-4


Transistor Output Optocouplers Phototransistor Out Single CTR 160-500%
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Vishay 4077
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AUD 0.6666
Multiples of: 1

HCPL0701R2


Fairchild Semiconductor High Speed Optocouplers Hi Gain Optocoupler 1Ch LC Darlington
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ON Semiconductor 4076
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AUD 1.6385
Multiples of: 1

VO617A-4


Transistor Output Optocouplers RECOMMENDED ALT 782-SFH617A-4
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay 4069
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AUD 0.1691
Multiples of: 1

VOS617A-9X001T


Vishay Semiconductors Transistor Output Optocouplers CTR 200-400% 5mA
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Vishay 4065
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AUD 0.2706
Multiples of: 1

VOM617A-2T


Transistor Output Optocouplers Phototransistor Out CTR 63-125% 5mA
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Vishay 4063
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AUD 0.2043
Multiples of: 1

SFH610A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO610A-3
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Vishay 4038
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AUD 0.5467
Multiples of: 1

MOC3021SM


Optotriac; 5.3kV; Uout:400V; Gull wing 6; Channels:1
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ON Semiconductor 4036
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AUD 0.3596
Multiples of: 1

VOS615A-1T


Transistor Output Optocouplers CPLR
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Vishay 3990
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AUD 0.2514
Multiples of: 1

SFH690ABT


Transistor Output Optocouplers Phototransistor Out Single CTR 50-300%
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Vishay 3989
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AUD 0.33
Multiples of: 1

CNY17F-3


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 3988
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AUD 0.2972
Multiples of: 1

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