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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GAQV1122S


2.5kV 8uA 1.4V SOP-4-175mil-2.54mm Transistor, Photovoltaic Output Optoisolators ROHS
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SUPSiC 3656
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AUD 0.4715
Multiples of: 1

HCPL4503SDVM


High Speed Optocouplers 1Mbps Single Chan Hi-Spd Transistor
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ON Semiconductor 1113
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AUD 1.6746
Multiples of: 1

VO615A-3X008T


Transistor Output Optocouplers H.Temp Phototrnstr 100-200% CTR
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Vishay 207
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AUD 0.179
Multiples of: 1

EL825


Transistor Output Optocouplers Photo Darlington Thru-Hole
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Everlight 206
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AUD 0.4952
Multiples of: 1

FOD8321


Logic Output Optocouplers 2.5A Out Gate Drive Optcplr; Optoplanar
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ON Semiconductor 204
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AUD 4.5313
Multiples of: 1

ACPL-H312-000E


Avago Technologies Logic Output Optocouplers 2.5A IGBT Gate Drive
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Broadcom 199
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AUD 5.3284
Multiples of: 1

EL452


3.75kV 1.5V@100mA,20mA 1 6V 1.2V DC SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 198
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AUD 0.1885
Multiples of: 5

TLP5214A(E(O


Logic Output Opto-couplers
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Toshiba 193
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AUD 9.2567
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4N24A


Optek TT Electronics Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 188
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AUD 55.509
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CNY651AGRST


Transistor Output Optocouplers Phototransistor Out
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Vishay 163
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AUD 3.9932
Multiples of: 1

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