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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KPS28010DTLD


Optocouplers SSOP-4 RoHS
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Cosmo 3870
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AUD 0.1227
Multiples of: 5

EL817S1(B)(TU)


Transistor Output Optocouplers Optocoupler Transistor DC Input
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Everlight 2124
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AUD 0.0526
Multiples of: 10

APT1221SX


Panasonic Industrial Devices Triac & SCR Output Optocouplers AC 600V 50mA Random Phototriac Coupler
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Panasonic 1940
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AUD 0.9522
Multiples of: 1

4N25-X007T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>20%
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Vishay 987
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AUD 0.3924
Multiples of: 1

MOC3073SM


Triac & SCR Output Optocouplers RAND PHASE TRIAC SM
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ON Semiconductor 979
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AUD 1.0558
Multiples of: 1

IS623X


Optotriac; 5.3kV; Uout:600V; zero voltage crossing driver; DIP6
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Isocom 972
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AUD 0.5788
Multiples of: 1

VO615A-9X007T


Transistor Output Optocouplers Optcplr 200-400% CTR 5mA SMD-4
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Vishay 969
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AUD 0.1948
Multiples of: 1

OPI120


Optoisolator Transistor with Base Output 15000VDC 1 Channel Axial
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TT Electronics 958
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AUD 15.1537
Multiples of: 1

TLP290(V4GBTP,SE(T


Optocouplers SO4 RoHS
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Toshiba 795
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AUD 0.348
Multiples of: 5

MOC3043S


60mA 400V 1.25V Two-way thyristor SMD Optocouplers - Thyristor Signal Output ROHS
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GUOXIN JIAPIN SEMICONDUCTOR 737
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AUD 0.2599
Multiples of: 5

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