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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PS2805C-1-F3-A


Transistor Output Optocouplers Optocoupler 4-pin SSOP
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Renesas 3322
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AUD 0.2968
Multiples of: 5

FOD260LSV


Fairchild Semiconductor High Speed Optocouplers
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ON Semiconductor 1843
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AUD 1.9238
Multiples of: 1

MOC3032M


Optotriac; 7.5kV; triac; DIP6; Channels:1; 2kV/µs
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ON Semiconductor 1841
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AUD 0.4468
Multiples of: 1

ILD211T


Transistor Output Optocouplers Phototransistor Out Dual CTR >20%
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Vishay 1839
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AUD 0.6899
Multiples of: 1

FODM3053V_NF098


Fairchild Semiconductor Triac & SCR Output Optocouplers 600V Random Phase Triac Driver 5mA
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ON Semiconductor 1835
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AUD 0.9562
Multiples of: 1

SFH615AGR


Transistor Output Optocouplers Phototransistor Out Single CTR 100-300%
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Vishay 1826
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AUD 0.341
Multiples of: 1

IL252-X007T


Transistor Output Optocouplers Phototransistor Out AC-In Sing CTR>100%
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Vishay 1748
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AUD 1.0081
Multiples of: 1

ZSPC-817-Z2


SMD Optocouplers - Phototransistor Output ROHS
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Chau Light 1746
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AUD 0.028
Multiples of: 20

HCPL-070A-500E


High Speed Optocouplers 100kBd 1Ch 10mA
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Broadcom 1746
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AUD 1.5212
Multiples of: 1

4N37


Transistor Output Optocouplers Phototransistor Out
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Vishay 1065
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AUD 0.2483
Multiples of: 1

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