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 LTV-M601


Lite-On High Speed Optocouplers SOP-5 High Speed Phototranistr Output
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Lite-On 18804
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AUD 0.5247
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HCPL-181-000E


Transistor Output Optocouplers 3750 Vrms 0.2mA
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Broadcom 5682
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AUD 0.3866
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PS2381-1Y-F3-AX


Transistor Output Optocouplers BV = 5000Vr.m.s. -40c + 115c
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CEL 5626
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AUD 0.8171
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CPC1976Y


Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay
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IXYS 5617
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AUD 3.4478
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VO3120-X007T


Logic Output Optocouplers 2.5A Current Out IGBT/MOSFET Drvr
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Vishay 5605
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AUD 1.0376
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AT1019-CuH-L


5kV 50mA 300mV@1mA,10mA 1 6V 1.2V DC LSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 5596
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AUD 0.0638
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ILD1206T


Vishay Semiconductors Transistor Output Optocouplers DUAL CHANNEL CTR 63-125%
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Vishay 5586
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AUD 0.9423
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TLP385(GR-TPL,E


Transistor Output Optocouplers GaAs Infrared and Photo-Transistor
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Toshiba 5577
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AUD 0.326
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FODM8801BR2V


Fairchild Semiconductor Transistor Output Optocouplers VDE tested, OptoHiT Hi Temp Phototranstr
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ON Semiconductor 5108
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AUD 0.8767
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LTV-827S


Transistor Output Optocouplers Optocplr Phototrans 2-CHNL
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Lite-On 4647
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AUD 0.2069
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