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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MCT5210M


Transistor Output Optocouplers Phototransistor
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ON Semiconductor 849
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AUD 1.0389
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AT3063-CuH-SE


100mA 60mA 600V 1.3V Two-way thyristor SMD-6P Triac, SCR Output Optoisolators ROHS
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AOTE 848
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AUD 0.1821
Multiples of: 5

6N139-X017T


Vishay Semiconductors High Speed Optocouplers 100kbd High-Speed Trans Out CTR>500%
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Vishay 847
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AUD 1.1992
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VO2611-X017T


Vishay Semiconductors High Speed Optocouplers Optocoupler SMD-8
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Vishay 847
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AUD 1.5208
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HCPL-0201-000E


High Speed Optocouplers 5MBd 1Ch 1.6mA
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Broadcom 847
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AUD 3.4222
Multiples of: 1

IL4218-X019


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 846
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AUD 3.7148
Multiples of: 1

FOD3184TV


Fairchild Semiconductor Logic Output Optocouplers 3A Out, Hi-Speed Gate Drvr Optocouplr
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ON Semiconductor 843
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AUD 2.2524
Multiples of: 1

H11F3VM


Fairchild Semiconductor MOSFET Output Optocouplers FET Bilateral analog
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ON Semiconductor 843
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AUD 3.1397
Multiples of: 1

ACPL-337J-500E


Logic Output Opto-couplers 2.5A IGBT Gate Drive Optocoupler 15V-30V
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Broadcom 842
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AUD 3.2942
Multiples of: 1

TLP3825(F


MOSFET Output Optocouplers Photorelay 1.5A 200V 2500Vrms 400pF 5mA
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Toshiba 842
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AUD 6.9967
Multiples of: 1

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