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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HCNW139-500E


Avago Technologies High Speed Optocouplers 100kBd 1Ch 0.4mA
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Broadcom 91
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AUD 5.5324
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ACPL-K43T-560E


Optocouplers SO-8 RoHS
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Broadcom 87
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AUD 1.8422
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TLP185(BL-TPR,SE


SO6 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 85
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AUD 1.0538
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VOT8123AD-V


Triac & SCR Output Optocouplers Non-Zero 800V Vrdm DIP6; 5000V Vrms
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Vishay 85
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AUD 0.4942
Multiples of: 1

TLP2309(TPL,E(T


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 5-Pin SO T/R
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Toshiba 85
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AUD 0.5432
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TLP183(V4-GLTR,E


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 85
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AUD 1.2291
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TLP209D(F)


Toshiba MOSFET Output Optocouplers Photorelay Voff=200V Ion=0.05A Ron=40Ohm
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Toshiba 85
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AUD 4.9844
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PS2806-1-F3-A


Transistor Output Optocouplers OPTOCOUPLER 4-PIN SSOP
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Renesas 78
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AUD 2.6005
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CNY17F-2X017


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 37
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AUD 0.4301
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PS2505-1-A


Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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Renesas 0
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AUD 0.4237
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