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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TLP2303(TPL,E(T


SO-5-4.6mm Logic Output Optoisolators ROHS
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Toshiba 1131
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AUD 0.8057
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CNY17-1X009T


Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay 1129
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AUD 0.4348
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CNY17F-2X007


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 1125
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AUD 0.3632
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LTV-824S


Transistor Output Optocouplers Optocoupler AC in 2-CHNL
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Lite-On 1123
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AUD 0.3825
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TIL117SR2VM


Transistor Output Optocouplers 6-Pin Optocoupler SMT Transistor
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ON Semiconductor 1123
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AUD 0.5211
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IL4116-X007T


Triac & SCR Output Optocouplers Phototriac Output, Zero Crossing
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Vishay 1122
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AUD 3.282
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TCDT1102


Transistor Output Optocouplers Phototransistor Out
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Vishay 1116
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AUD 0.3125
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ILQ30


Transistor Output Optocouplers Photodarlington Out Quad CTR >100%
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Vishay 1114
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AUD 2.6269
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H11D1S


Optoisolator Transistor with Base Output 5000Vrms 1 Channel 6-SMD
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Lite-On 1113
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AUD 0.4562
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LTV-817M-B


Optocouplers DIP-4 RoHS
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Lite-On 494
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AUD 0.1379
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