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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CNY75A


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 3745
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AUD 0.282
Multiples of: 1

PS2513-1-A


Transistor Output Optocouplers Hi-Speed Switch 1-Ch
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CEL 3737
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AUD 0.7904
Multiples of: 1

FOD817C300W


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 3729
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AUD 0.1389
Multiples of: 5

ACPL-214-50AE


Transistor Output Optocouplers 3000Vrms 20% CTR
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Broadcom 3728
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AUD 0.8244
Multiples of: 1

Hot SFH617A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO617A-3
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Vishay 3727
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AUD 0.3285
Multiples of: 1

LTV-217D


3.75kV 50mA 200mV@1mA,10mA 1 6V 1.4V DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 3700
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AUD 0.0804
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VOMA618A-X001T


Transistor Output Optocouplers 80Vceo 3750Vrms SOP-4 CTR 50-600
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Vishay 3664
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AUD 1.023
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TLP785(BL,F)


Toshiba Transistor Output Optocouplers Photo-IC 60mA 80V 5000 Vrms 8000 Vpk
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Toshiba 3618
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AUD 0.1971
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VO617A-3X007T


Transistor Output Optocouplers H. Relblty 5300 Vrms 100-200% CTR
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Vishay 3606
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AUD 0.1855
Multiples of: 1

IL211AT


Transistor Output Optocouplers Phototransistor Out Single CTR >20%
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Vishay 3234
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AUD 0.5024
Multiples of: 1

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