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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KPC457TLD


Optocouplers SOP-5 RoHS
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Cosmo 6492
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AUD 0.6544
Multiples of: 1

Hot SFH6156-2


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 1552
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AUD 0.2388
Multiples of: 100

VOT8025AG


Triac & SCR Output Optocouplers Zero 800V Vrdm 100mA DIP6; 5300V Vrms
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Vishay 675
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AUD 0.4942
Multiples of: 1

EL3041S(TA)


Triac & SCR Output Optocouplers 400PBV 5000Vrms -55 to +100 Op Temp
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Everlight 673
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AUD 0.4743
Multiples of: 1

FOD8332R2V


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 671
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AUD 4.6791
Multiples of: 1

4N27-X009


Transistor Output Optocouplers Phototransistor Out Single CTR>10%
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Vishay 661
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AUD 0.3694
Multiples of: 1

EL814S1(TU)


Transistor Output Optocouplers Optocoupler Transistor AC Input
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Everlight 660
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AUD 0.2988
Multiples of: 1

HCPL0701


High Speed Optocouplers Hi Gain Optocoupler 1Ch LC Darlington
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ON Semiconductor 554
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AUD 1.8782
Multiples of: 1

EL3083S(TA)-V


Triac & SCR Output Optocouplers 800PBV 5000Vrms -55 to +100 Op Temp
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Everlight 465
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AUD 0.2543
Multiples of: 5

KMOC3083S


Triac Optocouplers SMD-6 RoHS
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Cosmo 0
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AUD 0.2434
Multiples of: 5

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