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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6N139S(TA)


Everlight High Speed Optocouplers Low Input, High Gain DC Input
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Everlight 1353
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AUD 0.3146
Multiples of: 5

MOC3073SVM


Triac & SCR Output Optocouplers 6PW RP TRIAC SMD VDE
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ON Semiconductor 1352
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AUD 1.1731
Multiples of: 1

ELS3120P(TA)-VG


SOP-6-6.8mm Optocouplers - Logic Output ROHS
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Everlight 1349
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AUD 0.8846
Multiples of: 1

CNY17-4X009T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 1347
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AUD 0.3661
Multiples of: 1

FOD3184SDV


Fairchild Semiconductor Logic Output Optocouplers 3A Out, Hi-Speed Gate Drvr Optocouplr
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ON Semiconductor 1347
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AUD 1.87
Multiples of: 1

ACPL-782T-500E


Avago Technologies Optically Isolated Amplifiers 100kHz, 3750vrms 30ppmC Gain Drift
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Broadcom 1344
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AUD 6.5186
Multiples of: 1

TLP785F(GB-TP7,F)


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 1343
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AUD 0.1801
Multiples of: 5

4N36-X009


Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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Vishay 1342
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AUD 0.363
Multiples of: 1

MOCD211M


Optocoupler; SMD; Channels:2; Out: transistor; 2.5kV; SO8
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ON Semiconductor 1341
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AUD 0.4227
Multiples of: 1

VOT8125AG-V


Triac & SCR Output Optocouplers Non-Zero 800V Vrdm DIP6; 5000V Vrms
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Vishay 1341
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AUD 0.4966
Multiples of: 1

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