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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K10101B


Optocouplers DIP-4 RoHS
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Cosmo 16315
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AUD 0.0447
Multiples of: 10

IL4218-X019T


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 1875
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AUD 3.8333
Multiples of: 1

FOD3120V


Logic Output Optocouplers Optocoupl Logic-Out Push-Pul DC-In 1-Ch
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ON Semiconductor 1874
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AUD 1.2478
Multiples of: 1

LTV-1009


5kV 50mA 300mV@1mA,10mA 1 6V 1.2V DC LSOP-4-300mil-2.54mm Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 1872
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AUD 0.0649
Multiples of: 10

ELM453(TA)


SOP-5 Optocouplers - Phototransistor Output ROHS
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Everlight 1865
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AUD 0.7572
Multiples of: 1

PC817X3YSZW


Transistor Output Optocouplers
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Sharp 1857
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AUD 0.1046
Multiples of: 5

PC3SD12NTZAH


Triac & SCR Output Optocouplers Phototriac Coupler
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Sharp 1822
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AUD 0.4798
Multiples of: 1

LTV-1004-TP1-G


70V 5kV 50mA 300mV@1mA,10mA 1 6V 1.25V DC SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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Lite-On 1731
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AUD 0.1032
Multiples of: 5

IL300-EF


High Linearity Optocouplers High Gain Wide Bandwidth Linear
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Vishay 630
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AUD 4.6627
Multiples of: 1

VO2223A


Triac & SCR Output Optocouplers 1 A, DIP-8 package 10-mA input trig crt
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Vishay 0
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AUD 0.745
Multiples of: 1

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