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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Hot TCLT1005


Transistor Output Optocouplers Phototransistor Out
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Vishay 3734
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AUD 0.3667
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CNY17-2X006


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 432
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AUD 0.3841
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HCPL4503TSR2VM


High Speed Optocouplers HI-SPEED TRANSISTOR 8-PIN, SMD, VDE
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ON Semiconductor 427
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AUD 1.3046
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APT1211S


Triac & SCR Output Optocouplers 50mA 600V TRIAC ZERO-CROSS
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Panasonic 427
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AUD 1.502
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HCPL2531SVM


Fairchild Semiconductor High Speed Optocouplers
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ON Semiconductor 426
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AUD 1.4265
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CPC1972G


IXYS Integrated Circuits Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay
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IXYS 425
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AUD 1.5505
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VO615A-1X017T


Transistor Output Optocouplers RECOMMENDED ALT 782-SFH615A-1X017T
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Vishay 422
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AUD 0.1886
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SFH6156-4X001T


Transistor Output Optocouplers Phototransistor Out Single CTR>160-320%
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Vishay 418
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AUD 0.2549
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ACPL-P314-560E


Avago Technologies Logic Output Optocouplers 0.6A IGBT Gate Drive
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Broadcom 418
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AUD 1.0511
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TLP293-4(E(T


Transistor Output Optocouplers
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Toshiba 327
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AUD 1.1591
Multiples of: 338

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