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 H11G1M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:4.17kV; DIP6
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ON Semiconductor 57373
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AUD 0.5086
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PC81713NIP1B


Transistor Output Optocouplers Photocoupler
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Sharp 5379
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AUD 0.5581
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VOM618A-4T


Transistor Output Optocouplers Phototransistor Out CTR 160-320% 1mA
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Vishay 5340
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AUD 0.2459
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ACPL-M483-500E


Optocoupler Logic-Out Totem-Pole DC-IN 1-CH 5-Pin SO T/R
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Broadcom 5335
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AUD 2.0494
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PS1201


IXYS Integrated Circuits Triac & SCR Output Optocouplers NO PC-Mount 1-CHANNEL SIP
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IXYS 5286
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AUD 10.0729
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KTLP160J3 TLD


SOP-4 Optocouplers - Phototransistor Output ROHS
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Cosmo 5262
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AUD 0.3402
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VOL617A-7X001T


Transistor Output Optocouplers CPLR
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Vishay 5189
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AUD 0.2561
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EL3H7(TA)-VG


Everlight Transistor Output Optocouplers 50-600CTR 3750Vrms -55 to 110 Op Temp
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Everlight 5143
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AUD 0.2268
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ELM600(TA)


SOP-5 Optocouplers - Logic Output ROHS
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Everlight 4823
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AUD 0.5827
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TCLT1103


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 2988
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AUD 0.3489
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