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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IS281-4


Optoisolator Transistor Output 3750Vrms 4 Channel
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Isocom 4152
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AUD 1.102
Multiples of: 1

VOS627A-3T


Transistor Output Optocouplers AC Input, Phtotrnstr 100-200%CTR, +/-5MA
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Vishay 1810
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AUD 0.536
Multiples of: 1

SFH6345-X019


High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 1808
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AUD 1.3417
Multiples of: 1

VOD211T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SOIC8
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Vishay 1807
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AUD 0.6577
Multiples of: 1

4N28SM


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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ON Semiconductor 1804
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AUD 0.2734
Multiples of: 1

FOD3150


Logic Output Opto-couplers High Noise Immunity 1.0A Out, Gate
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ON Semiconductor 1802
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AUD 0.9303
Multiples of: 1

TCDT1120


Transistor Output Optocouplers Phototransistor Out
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Vishay 1799
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AUD 0.2844
Multiples of: 1

VO615A-X007T


Transistor Output Optocouplers H.Temp Phototrnstr 50-600% CTR, 5mA
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Vishay 1794
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AUD 0.2019
Multiples of: 1

MOC3083-JSM


50mA 800V 1.2V Two-way thyristor SOP-6 Thyristor Output Optocoupler ROHS
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JSMSEMI 1770
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AUD 0.1992
Multiples of: 5

H11AA1-X001


Transistor Output Optocouplers Phototransistor Out AC-In Single CTR 20%
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Vishay 1757
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AUD 0.7103
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