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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HCNW4503-500E


High Speed Optocouplers 1Ch 16mA 700mW
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Broadcom 1580
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AUD 2.802
Multiples of: 1

H11L1


Logic Output Opto-couplers Optocouplers
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Everlight 1576
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AUD 0.3292
Multiples of: 5

LTV-815S


Optocoupler; SMD; Channels:1; Out: Darlington; Uinsul:5kV; Uce:35V
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Lite-On 1575
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AUD 0.1917
Multiples of: 1

VO3063


Triac & SCR Output Optocouplers Zero Crossing Photo Triac
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Vishay 1574
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AUD 0.6301
Multiples of: 1

4N38M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:7.5kV; DIP6
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ON Semiconductor 1573
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AUD 0.2656
Multiples of: 1

FOD8320


Logic Output Opto-couplers High Noise ImmunIty 2.5A Out Gate Drive
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ON Semiconductor 1573
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AUD 4.18
Multiples of: 1

APV2121S


Photodiode Output Optocouplers Driver 4-pin SOP Driver 4-pin SOP
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Panasonic 1567
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AUD 1.3231
Multiples of: 1

FOD4118SDV


Fairchild Semiconductor Triac & SCR Output Optocouplers Black Pkg Zero Cross Snubless Triac Drver
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ON Semiconductor 1564
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AUD 3.4414
Multiples of: 1

CNY17-4X006


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 1563
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AUD 0.3269
Multiples of: 1

4N37-X007


Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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Vishay 1563
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AUD 0.4231
Multiples of: 1

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