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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HCPL-3700-000E


Logic Output Opto-couplers AC/DC to Logic
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Broadcom 160
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AUD 4.3045
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VOT8025AD-V


Triac & SCR Output Optocouplers Zero 800V Vrdm 100mA DIP6; 5300V Vrms
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Vishay 32
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AUD 0.6091
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MOC3071M


Triac & SCR Output Optocouplers Triac Driver Opto
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ON Semiconductor 32
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AUD 0.4646
Multiples of: 1

CNY64(B)-V


Optocoupler; THT; Ch: 1; OUT: transistor; Uinsul: 8.2kV; Uce: 80V
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Everlight 31
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AUD 1.5672
Multiples of: 1

HCPL-2201-000E


Logic Output Optoisolator 5MBd Push-Pull, Totem Pole 3750Vrms 1 Channel 1kV/µs CMTI 8-DIP
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Broadcom 31
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AUD 6.6657
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6N138-000E


Optoisolator Darlington with Base Output 3750Vrms 1 Channel 8-DIP
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Broadcom 30
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AUD 1.7552
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SFH617A-1X006


Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
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Vishay 29
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AUD 0.504
Multiples of: 1

NTE3043


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP
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NTE 29
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AUD 3.5324
Multiples of: 1

NTE3093


Optocoupler DC-IN 1-CH Darlington With Base DC-OUT 8-Pin PDIP
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NTE 29
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AUD 5.2437
Multiples of: 1

HCPL-2531-300E


High Speed Optocouplers 1MBd 2Ch 16mA
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Broadcom 28
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AUD 3.197
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