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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IL213AT


Transistor Output Optocouplers Phototransistor Out Single CTR >100%
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Vishay 4430
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AUD 0.5257
Multiples of: 1

14230524500


Triac & SCR Output Optocouplers WL-OCTR Optocoupler Triac NZC / WEM30x SOP4 600V 10mA NZC
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Wurth 2798
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AUD 0.737
Multiples of: 1

VO617A-3


Transistor Output Optocouplers RECOMMENDED ALT 782-SFH617A-3
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Vishay 2794
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AUD 0.1658
Multiples of: 1

MEL357C


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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MSKSEMI 2793
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AUD 0.0569
Multiples of: 10

HMHA2801C


Fairchild Semiconductor Transistor Output Optocouplers 4 PIN TRANS OUTPUT
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ON Semiconductor 2792
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AUD 0.2857
Multiples of: 1

SFH620A-3X001


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out AC-In CTR>100-320%
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Vishay 2786
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AUD 0.5013
Multiples of: 1

CNY17F1VM


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:4.17kV; DIP6
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ON Semiconductor 2778
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AUD 0.2735
Multiples of: 1

CNY75C


Transistor Output Optocouplers Phototransistor Out Single CTR 160-320%
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Vishay 2772
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AUD 0.282
Multiples of: 1

OR-6N137S-TA1


Optocouplers SMD-8 RoHS
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Orient 2609
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AUD 0.41
Multiples of: 5

SFH6345-X017T


Vishay Semiconductors High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 2601
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AUD 1.298
Multiples of: 1

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