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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FOD4218TV


Fairchild Semiconductor Triac & SCR Output Optocouplers Zero-Cross Triac Snubberless
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ON Semiconductor 970
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AUD 3.9246
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FOD8321


Logic Output Optocouplers 2.5A Out Gate Drive Optcplr; Optoplanar
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ON Semiconductor 970
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AUD 4.6508
Multiples of: 100

FOD8384R2V


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 970
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AUD 4.7946
Multiples of: 1

FOD8383R2


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 970
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AUD 4.9833
Multiples of: 1

FOD8316V


Logic Output Optocouplers 2.5A Out IGBT Drive Optcplr; DIN EN/IEC
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ON Semiconductor 970
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AUD 5.0246
Multiples of: 1

FOD8321R2


Logic Output Optocouplers Dual 2A High-Speed Low-Side Gate Driver
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ON Semiconductor 970
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AUD 5.1934
Multiples of: 1

FOD8333


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 970
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AUD 5.2836
Multiples of: 1

IL300-EF-X009T


High Linearity Optocouplers Single Linear High Gain Wide Bandwidth
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Vishay 970
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AUD 5.6969
Multiples of: 1

HCPL-2232-500E


High Speed Optocouplers 5MBd 2Ch 1.8mA
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Broadcom 970
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AUD 5.8278
Multiples of: 1

FOD8318V


Logic Output Optocouplers 2.5A OUT PUSH-PULL
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ON Semiconductor 970
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AUD 7.3777
Multiples of: 1

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