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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LTV-217B


3.75kV 50mA 200mV@1mA,10mA 1 6V 1.2V DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 11892
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AUD 0.0582
Multiples of: 10

PC123X2YUP1B


Transistor Output Optocouplers OPTOISOLATOR SMD, Optoisolator Transistor Output 5000Vrms 1 Channel
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Sharp 6691
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AUD 0.3001
Multiples of: 1

LTV-844HS


Transistor Output Optocouplers Optocoupler AC in 4-CHNL
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Lite-On 6670
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AUD 0.825
Multiples of: 1

FODM2705


Transistor Output Optocouplers AC In Phototransistr Output Optocoupler
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ON Semiconductor 6634
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AUD 0.2829
Multiples of: 1

ELM600(TA)


SOP-5 Optocouplers - Logic Output ROHS
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Everlight 6621
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AUD 0.5309
Multiples of: 1

CNY17F-3X009


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 6608
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AUD 0.3159
Multiples of: 1

Hot HCPL0601R2


Logic Output Optoisolator 10Mbps Open Collector 3750Vrms 1 Channel 10kV/µs CMTI 8-SOIC
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ON Semiconductor 6570
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AUD 0.8789
Multiples of: 1

TLP185(BLL-TL,SE(T


SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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Toshiba 5048
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AUD 0.1645
Multiples of: 5

FOD8318R2V


Logic Output Optocouplers VDE tested, 2.5A IGBT Drive Optocoupl
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ON Semiconductor 2910
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AUD 5.0539
Multiples of: 750

6N136SM


High Speed Optocouplers 8P-DIP SM HI SPEED TRANSISTOR OPTOCOUP
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ON Semiconductor 852
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AUD 0.869
Multiples of: 1

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