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 PS2801C-4-F3-A


Transistor Output Optocouplers Optocoupler 16-pin SSOP
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Renesas 5494
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AUD 0.784
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Hot CNY65EXI


Transistor Output Optocouplers Phototransistor Out Single CTR 50-300%
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Vishay 2993
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AUD 4.8269
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HCPL-063L-500E


Logic Output Optoisolator 15MBd Open Collector, Schottky Clamped 3750Vrms 2 Channel 10kV/µs CMTI 8-SO Tall
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Broadcom 2971
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AUD 1.8852
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LTV-852S


Transistor Output Optocouplers Optocoupler Phototransistor
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Lite-On 2968
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AUD 0.3981
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KT1018TLD


Optocouplers SOP-4_P2.54_300mil RoHS
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Cosmo 2929
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AUD 0.0791
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VO615A-4


Vishay Semiconductors Transistor Output Optocouplers Optocoupler DIP4
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Vishay 2927
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AUD 0.1729
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ILD206T


Transistor Output Optocouplers Phototransistor Out Dual CTR 63-125%
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Vishay 2412
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AUD 0.7171
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TLP2358(TPL,E)


High Speed Optocouplers Photocoupler 20V 3mA 70ns 3750Vrms
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Toshiba 825
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AUD 0.5362
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CNY171SR2M


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 57
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AUD 0.1485
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ACPL-247-500E


Transistor Output Optocouplers Phototx Coupler Quad
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Broadcom 40
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AUD 0.9146
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