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-0370-500E


Logic Output Optocouplers 1Ch 50mA 275mW
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Broadcom 1184
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AUD 2.111
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TLP785GB


5kV 6V 1.4V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 1183
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AUD 0.0727
Multiples of: 10

EL0501(TA)


Optoisolator Transistor with Base Output 3750Vrms 1 Channel 8-SOP
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Everlight 1183
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AUD 0.932
Multiples of: 1

ACPL-C79A-500E


Optically Isolated Amplifiers Precision Iso-Amp
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Broadcom 1181
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AUD 3.1725
Multiples of: 1

CNY17F-3X017T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 1180
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AUD 0.407
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ACPL-P314-560E


Avago Technologies Logic Output Optocouplers 0.6A IGBT Gate Drive
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Broadcom 1179
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AUD 0.9836
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FOD8333V


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 1178
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AUD 4.6043
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MOC3031M


Triac & SCR Output Optocouplers DIP-6 ZERO TRIAC
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ON Semiconductor 1177
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AUD 0.5123
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PS2705A-1-A


Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 1177
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AUD 1.2053
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PS2565L-1-V-A


CEL Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 1176
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AUD 0.8941
Multiples of: 1

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