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 MOC3163M


Optotriac; 4.17kV; zero voltage crossing driver; DIP6; 1kV/µs
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ON Semiconductor 1049
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AUD 0.672
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LDA102


Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 297
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AUD 0.486
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TLP785(BL.F(C


Transistor Output Optocouplers
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Toshiba 296
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AUD 0.322
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LTV-852S-TA1


Transistor Output Optocouplers Optocoupler Phototransistor
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Lite-On 294
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AUD 0.3834
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IS661XSM


Optocoupler; SMD; Channels:1; Out: Darlington; Uinsul:5.3kV
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Isocom 294
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AUD 0.404
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PS2506-1-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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CEL 294
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AUD 1.056
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ISP847XSM


Optocoupler; SMD; Channels:4; Out: transistor; Uinsul:5.3kV
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Isocom 294
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AUD 1.292
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HCPL2531SDVM


Fairchild Semiconductor High Speed Optocouplers
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ON Semiconductor 294
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AUD 1.5352
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CYPS2501-1(K)


DIP-4 Optocouplers - Phototransistor Output ROHS
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OCIC 0
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AUD 0.0665
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4N25


100mA 5kV 300mV@2mA,50mA 1 6V 1.2V DC DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 0
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AUD 0.1466
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