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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PC817X2YIPW


Sharp Microelectronics
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Sharp 11329
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AUD 0.0784
Multiples of: 5

Hot 4N26M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:7.5kV; DIP6
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ON Semiconductor 6303
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AUD 0.2304
Multiples of: 1

TCET1103


Transistor Output Optocouplers Phototransistor Out
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Vishay 6285
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AUD 0.242
Multiples of: 1

TLP109(IGM-TPR,E


High Speed Optocouplers Photo-IC -0.5 to 30V 3750 Vrms 800ns
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Toshiba 6281
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AUD 1.0827
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SFH620AGB


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 100-600%
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Vishay 6277
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AUD 0.471
Multiples of: 1

4N35SM


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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ON Semiconductor 6226
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AUD 0.2153
Multiples of: 50

PS2703-1-F3-A


Transistor Output Optocouplers Hi-Iso Photo 1-Ch
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CEL 6193
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AUD 0.5096
Multiples of: 1

TLP385(GB-TPL,E


Transistor Output Optocouplers GaAs Infrared and Photo-Transistor
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Toshiba 5761
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AUD 0.168
Multiples of: 5

TCMT4100T0


Transistor Output Optocouplers AC Input, Phtotrnstr 50-600% CTR 5mAVDE-
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Vishay 5416
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AUD 1.1058
Multiples of: 1

HMHA2801A


Transistor Output Optocouplers 4PN 1/2PTH PhtoXstr Output Optocoupler
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ON Semiconductor 3928
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AUD 0.2153
Multiples of: 1

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