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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HCPL-3150-300E


Logic Output Opto-couplers 0.5A IGBT Gate Drive
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Broadcom 406
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AUD 2.7778
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FOD8320R2


Logic Output Opto-couplers Low Power Two-Input Logic Gate TinyLogic
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ON Semiconductor 405
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AUD 4.6913
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VO617A-X018T


Transistor Output Optocouplers CPLR
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Vishay 404
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AUD 0.4487
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CPC1302GSTR


Transistor Output Optocouplers Dual Optocoupler High-Voltage
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IXYS 403
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AUD 2.427
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HCNW2601-500E


High Speed Optocouplers 10MBd 1Ch 5mA
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Broadcom 403
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AUD 3.645
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H11B1SM


Transistor Output Optocouplers Photodarlington
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ON Semiconductor 401
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AUD 0.3751
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TLP5214A(D4-TP,E


Logic Output Optocouplers Photocoupler 35V 3.8mA 5000Vrms
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Toshiba 401
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AUD 5.8426
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CNY17-1X009


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 397
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AUD 0.3632
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H11G2SR2VM


Fairchild Semiconductor Transistor Output Optocouplers High Voltage Photodarlington Out
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ON Semiconductor 396
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AUD 0.4871
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RV1S9353ACCSP-120V#SC0


Optically Isolated Amplifiers Opto Delta-Sigma Mod 13.8b 2mV 10MHz VDE
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Renesas 396
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AUD 12.1546
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