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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TCMT1119


Transistor Output Optocouplers Phototransistor 200-400% CTR 5mA VDE
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Vishay 5283
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AUD 0.3143
Multiples of: 1

FOD4208


Triac & SCR Output Optocouplers 800V RANDOM PHASE TRIAC
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ON Semiconductor 5275
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AUD 3.527
Multiples of: 1

PS2565-1-A


Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 5266
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AUD 0.763
Multiples of: 1

KTLP160J3 TLD


SOP-4 Optocouplers - Phototransistor Output ROHS
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Cosmo 5262
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AUD 0.3402
Multiples of: 5

PS1201


IXYS Integrated Circuits Triac & SCR Output Optocouplers NO PC-Mount 1-CHANNEL SIP
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IXYS 5257
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AUD 5.6048
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HCPL0453R2


High Speed Optocouplers Optocoupler 1Ch HS Transistor
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ON Semiconductor 5237
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AUD 0.8608
Multiples of: 1

KMOC3021S TL


SMD Optocouplers - Phototransistor Output ROHS
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Cosmo 5218
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AUD 0.1823
Multiples of: 5

IL410-X001


Triac & SCR Output Optocouplers Phototriac Output Zero Crossing
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Vishay 5215
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AUD 3.0667
Multiples of: 1

H11L2SVM


Logic Output Optoisolator 1MHz Open Collector 4170Vrms 1 Channel CMTI 6-SMD
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ON Semiconductor 5198
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AUD 1.139
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6N137S


SOP-8 Optocouplers - Logic Output ROHS
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Youtai 5145
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AUD 0.2496
Multiples of: 5

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