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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HCNR201-000E


High Linearity Optocouplers 1 Ch 60mW 25mA
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Broadcom 2331
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AUD 2.0177
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CNY174SVM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 2318
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AUD 0.3679
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CPC1943GS


IXYS Integrated Circuits Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch
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IXYS 2318
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AUD 6.5476
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CNY17-3-000E


Transistor Output Optocouplers 5000 Vrms 0.3mA
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Broadcom 2312
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AUD 0.4489
Multiples of: 1

VO615A-8X017T


Transistor Output Optocouplers Optocoupler SMD4
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Vishay 2311
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AUD 0.1729
Multiples of: 1

HCPL-0701-500E


High Speed Optocouplers 100kBd 1Ch 0.5mA
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Broadcom 2311
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AUD 1.5091
Multiples of: 1

CNY17G-3


Transistor Output Optocouplers Phototransistor Out Dual CTR 100-200%
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Vishay 2308
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AUD 0.2933
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HCPL2630M


High Speed Optocouplers HIGHSPEED TRANSISTOR optocouplers
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ON Semiconductor 2303
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AUD 1.5381
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ACPL-332J-500E


Logic Output Opto-couplers 1.5A IGBT Gate Drive
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Broadcom 2301
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AUD 3.3019
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EL3022


Triac Optocouplers DIP-6 RoHS
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Everlight 2298
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AUD 0.1455
Multiples of: 5

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