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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ACPL-K342-500E


Logic Output Optocouplers Optocoupler
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Broadcom 2043
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AUD 2.8604
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4N32SM


Optocoupler; SMD; Channels:1; Out: Darlington; Uinsul:2.5kV
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ON Semiconductor 1789
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AUD 0.4569
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ATH11L3-CuH-S


15V 7kV DC SMD-6P Logic Output Optoisolators ROHS
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AOTE 108
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AUD 0.5634
Multiples of: 1

PS9821-2-AX


High Speed Optocouplers 15Mbps OPEN COLLECT
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CEL 104
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AUD 8.3896
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JAN4N24


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin TO-5
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Micropac 103
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AUD 21.6246
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4N26


Everlight Transistor Output Optocouplers Optocouplers
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Everlight 98
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AUD 0.3866
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CT3021(S)(T1)


Triac Optocouplers SMT-6_6.3mm RoHS
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CT Micro International 97
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AUD 0.1989
Multiples of: 5

AT852-CuH-D


5kV 60mA 1.5V@100mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 97
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AUD 0.2094
Multiples of: 5

TLP2304(E(O


Optocoupler; SMD; Ch: 1; OUT: open collector; Uinsul: 3.75kV; SO6
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Toshiba 96
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AUD 1.5881
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FOD8160R2


Logic Output Optocouplers 3.3V/5V 10Mbits/sec SOP5 tape and Reel
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ON Semiconductor 41
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AUD 3.103
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