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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SFH6156-3T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 40740
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AUD 0.2463
Multiples of: 1000

CNY17F-1X001


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 1891
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AUD 0.4137
Multiples of: 1

HCPL0500R2V


Fairchild Semiconductor High Speed Optocouplers HS Optocoupler 1Ch Transistor
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ON Semiconductor 1889
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AUD 1.5039
Multiples of: 1

FOD817300


Transistor Output Optocouplers Phototransistor Output
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ON Semiconductor 1883
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AUD 0.2574
Multiples of: 1

CNY17F-3X007


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 1883
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AUD 0.3546
Multiples of: 1

4N28M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:7.5kV; DIP6
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ON Semiconductor 1833
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AUD 0.2857
Multiples of: 1

HCNR200-550E


Optocoupler DC-IN 1-CH Linear Photovoltaic DC-OUT 8-Pin PDIP W SMD T/R
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Broadcom 1670
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AUD 1.7784
Multiples of: 1

TLP785F(D4GRT7,F(C


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 1411
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AUD 0.1519
Multiples of: 5

SFH6345-X007


High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 1406
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AUD 1.1744
Multiples of: 1

CPC1972GSTR


IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay
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IXYS 652
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AUD 2.0262
Multiples of: 1

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