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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HCPL-2200-000E


Logic Output Optoisolator 2.5MBd Tri-State 3750Vrms 1 Channel 1kV/µs CMTI 8-DIP
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Broadcom 293
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AUD 3.8239
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Hot FOD410


Triac & SCR Output Optocouplers Random Phase Snubberless Triac
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ON Semiconductor 221
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AUD 2.6116
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PVI5033RS-TPBF


Photodiode Output Optocouplers 2 Form A Photo Voltaic Isolator
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Infineon 220
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AUD 10.9225
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4N23


Optek TT Electronics Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 220
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AUD 56.5597
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AT4N28-CUH-S


100mA 5kV 300mV@2mA,50mA 1 6V 1.2V DC SMD-6P Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 218
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AUD 0.1459
Multiples of: 5

PS2805C-4-A


Optocoupler AC-IN 4-CH Transistor DC-OUT 16-Pin SSOP T/R
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Renesas 215
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AUD 3.1546
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MCT6-X009


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR > 20%
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Vishay 214
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AUD 0.7979
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HCPL-0661-000E


Optocoupler; SMD; Channels:2; Out: gate; 3.75kV; 10Mbps; SO8
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Broadcom 194
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AUD 8.2537
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Hot ILQ621GB


Transistor Output Optocouplers Phototransistor Out Quad CTR >100%
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Vishay 192
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AUD 1.8597
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FOD8160R2V


Logic Output Optocouplers 3.3/5V 10 Mbit/sec Logic Gate Octocplr
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ON Semiconductor 4
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AUD 2.5284
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