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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6N135-000E


High Speed Optocouplers 1 Mb/s 3750Vrms
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Broadcom 178
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AUD 1.2019
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APV1121SX


Photodiode Output Optocouplers Driver 4-pin SOP T&R Driver 4-pin SOP T&R
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Panasonic 167
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AUD 1.517
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LTV-4N25


Optocouplers DIP-6 RoHS
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Lite-On 155
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AUD 0.1749
Multiples of: 5

PC3H4AJ0001H


Sharp Microelectronics
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Sharp 155
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AUD 0.3395
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TLP266J(V4-TPL,E


70mA 50mA 600V 1.27V Two-way thyristor SOP-4-2.54mm Triac, SCR Output Optoisolators ROHS
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Toshiba 155
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AUD 2.3812
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TLP591B(C,F)


Photodiode Output Optocouplers Photovoltaic Coupler
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Toshiba 155
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AUD 3.8482
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EL814


Transistor Output Optocouplers 20-300CTR 5000Vrms -55 to +110 Op Temp
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Everlight 140
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AUD 0.0993
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PD2601


IXYS Integrated Circuits Triac & SCR Output Optocouplers 600 VOLTS 1000 MA 20-500 OP FREQ
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IXYS 138
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AUD 16.5
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MOC3062SR2M


Triac & SCR Output Optocouplers 6Pin600V Optocoupler Zero Cross Triac Dr
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ON Semiconductor 99
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AUD 0.7834
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H11AA1-X007T


Transistor Output Optocouplers Phototransistor Out AC-In Single CTR 20%
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Vishay 78
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AUD 1.7917
Multiples of: 1

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