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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MCT623SD


Fairchild Semiconductor Transistor Output Optocouplers
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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.

ON Semiconductor 1723
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AUD 0.759
Multiples of: 1

UPC817XG-D04-T


35V 5000V 50mA 0.1V@1mA,20mA 1 6V 1.2V DC DIP-4 Optocouplers - Phototransistor Output ROHS
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Unisonic 1721
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AUD 0.071
Multiples of: 5

4N25TVM


Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 1721
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AUD 0.4399
Multiples of: 1

CNY172TVM


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 1719
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AUD 0.2986
Multiples of: 1

MOC3021SR2VM


Triac & SCR Output Optocouplers 6Pin 400V Optocoupl Rand Phs Triac Drvr
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ON Semiconductor 1718
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AUD 0.4023
Multiples of: 1

KPC357NT0DTLD


Optocouplers SOP-4_2.54 RoHS
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Cosmo 1716
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AUD 0.1094
Multiples of: 5

6N136SM


Optocouplers SMT-8 RoHS
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Isocom 1715
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AUD 0.656
Multiples of: 1

ILQ1-X007


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Quad CTR > 20%
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Vishay 1714
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AUD 2.0577
Multiples of: 1

H11AA4M


Transistor Output Optocouplers 6-PIN DIP AC INPUT PHOTOTRANSLATOR
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ON Semiconductor 1712
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AUD 0.3414
Multiples of: 1

PC851XNNIP1H


Transistor Output Optocouplers Photocoupler
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Sharp 1711
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AUD 0.7231
Multiples of: 1

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