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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MTLP181GB


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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MSKSEMI 12406
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AUD 0.0671
Multiples of: 10

SL247N


SSOP-16 Optocouplers - Phototransistor Output ROHS
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SLKORMICRO 5336
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AUD 0.5034
Multiples of: 1

IL4208-X007T


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 5025
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AUD 2.1214
Multiples of: 1

TLP151A(TPR,E)


Logic Output Opto-couplers Photo-IC 10 to 30V 3750 Vrms 500ns
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Toshiba 2136
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AUD 1.2144
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CNY171TVM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 2132
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AUD 0.2844
Multiples of: 1

KMOC3052


Triac Optocouplers DIP-5 RoHS
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Cosmo 2124
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AUD 0.2145
Multiples of: 5

FODM121GR4


Transistor Output Optocouplers 4SO TR
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ON Semiconductor 2124
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AUD 0.2734
Multiples of: 1

VO615C-2X019T


Transistor Output Optocouplers SMD-4 CPLR 63-125%CTR 5mA 110 -e3
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Vishay 2121
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AUD 0.3599
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HCPL-0201-500E


High Speed Optocouplers 5MBd 1Ch 1.6mA
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Broadcom 1805
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AUD 1.6873
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FOD8001R2


Fairchild Semiconductor High Speed Optocouplers 3.3V Logic Gate with High Noise Immunity
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ON Semiconductor 1020
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AUD 1.3954
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