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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MOC3023S-TA1


Triac & SCR Output Optocouplers Optocoupler TRIAC
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Lite-On 63074
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AUD 0.1596
Multiples of: 5

VOS617AT


Transistor Output Optocouplers CTR 50-600% 5mA
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Vishay 57096
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AUD 0.2233
Multiples of: 1

PS2565L-1-F3-A


CEL Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 56144
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AUD 0.8154
Multiples of: 1

PS2805C-4-F3-A


CEL Transistor Output Optocouplers Quad sgl TR AC Cplr
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CEL 55460
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AUD 1.9905
Multiples of: 1

VOM617A-7T


Transistor Output Optocouplers Phototransistor Out CTR 80-160% 5mA
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Vishay 55225
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AUD 0.2235
Multiples of: 1

EL817M(C)-F


Optocouplers DIP-4 RoHS
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Everlight 54161
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AUD 0.0488
Multiples of: 10

FOD817A300W


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 53922
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AUD 0.1343
Multiples of: 1

FODM8801CR2V


Fairchild Semiconductor Transistor Output Optocouplers
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ON Semiconductor 53350
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AUD 1.3644
Multiples of: 2500

ELQ3H7(TA)


Transistor Output Optocouplers Photo Transistor SMD
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Everlight 53054
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AUD 0.3681
Multiples of: 5

EL817S1(C)(TU)


Transistor Output Optocouplers Optocoupler Transistor DC Input
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Everlight 52835
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AUD 0.0534
Multiples of: 10

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