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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SFH610A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO610A-3
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Vishay 3007
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AUD 0.5217
Multiples of: 1

TLP3905(V4-TPL,E


SO-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2470
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AUD 1.545
Multiples of: 1

TPC816D C9G


Transistor Output Optocouplers Phototransistor DC input 70V 50mA
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Taiwan Semiconductor 2192
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AUD 0.1327
Multiples of: 1

HMHA2801A


Transistor Output Optocouplers 4PN 1/2PTH PhtoXstr Output Optocoupler
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ON Semiconductor 2182
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AUD 0.2214
Multiples of: 3000

VO2611-X007T


High Speed Optocouplers 10Mbd High-Speed Single CTR>300%
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Vishay 2137
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AUD 1.3373
Multiples of: 1

TLP785(GR,F(C


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin DIP
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Toshiba 2048
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AUD 0.2715
Multiples of: 1

CYPC356(B-TP)


80V 3.75kV 50mA 100mV@1mA,20mA 1 6V 1.2V DC SOP-4-2.54mm Optocouplers - Phototransistor Output ROHS
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OCIC 1867
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AUD 0.065
Multiples of: 5

SFH6156-2X001T


Transistor Output Optocouplers Phototransistor Out Single CTR > 63-125%
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Vishay 1726
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AUD 0.2247
Multiples of: 1

HCPL-7800-000E


Optically Isolated Amplifiers 4.5 - 5.5 SV 8 dB
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Broadcom 1133
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AUD 3.893
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CNY17F4M


Transistor Output Optocouplers Optocoupler Phototrans No Base
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ON Semiconductor 1126
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AUD 0.2829
Multiples of: 1

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