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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ILD213T


Transistor Output Optocouplers Phototransistor Out Dual CTR >100%
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Vishay 8332
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AUD 0.6899
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VO617A-3X007T


Transistor Output Optocouplers H. Relblty 5300 Vrms 100-200% CTR
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Vishay 3863
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AUD 0.165
Multiples of: 1

VO4158D


Triac & SCR Output Optocouplers Zero Crossing Photo Triac 800V 1.6mA
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Vishay 1938
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AUD 2.4415
Multiples of: 1

CNY17-1X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 1933
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AUD 0.3269
Multiples of: 1

HMHA2801AV


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 1932
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AUD 0.2891
Multiples of: 1

AT3041-CuH-DE


100mA 60mA 400V 1.5V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1930
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AUD 0.1483
Multiples of: 5

VO217AT


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SOIC8
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Vishay 1930
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AUD 0.4635
Multiples of: 1

IL4218-X017


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 1926
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AUD 3.7421
Multiples of: 1

MOC3021M


100mA 60mA 400V 1.15V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1624
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AUD 0.1404
Multiples of: 5

PC925LENIP0F


Optocouplers SMD-8_6.3mm RoHS
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Sharp 1619
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AUD 1.1577
Multiples of: 1

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