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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APV1122


Photodiode Output Optocouplers 5000VAC 8.7V DRIVER
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Panasonic 234
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AUD 3.1607
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4N49A


Transistor Output Optocouplers Optocoupled Isolator
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TT Electronics 234
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AUD 58.8343
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TLP785(GR.F(C


Transistor Output Optocouplers
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Toshiba 233
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AUD 0.432
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TB5128FTG(CP,EL


New Quadratic Unclassified Data QFN-48 RoHS
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Toshiba 233
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AUD 3.8064
Multiples of: 1

AT4N38-CuH-D


100mA 5kV 300mV@2mA,50mA 1 6V 1.2V DC DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 232
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AUD 0.1537
Multiples of: 5

TLP5772H(D4,E


Logic Output Opto-couplers Gate Drive Coupler; 2.5A; High Temp; RoHS; VDE
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Toshiba 232
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AUD 1.8538
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ACPL-312T-000E


Logic Output Opto-couplers Gate Drive Opto
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Broadcom 232
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AUD 4.72
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LDA111


Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 231
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AUD 0.8454
Multiples of: 1

SFH618A-3X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 229
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AUD 0.5673
Multiples of: 1

Hot FOD2711ASDV


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:30V
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ON Semiconductor 229
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AUD 0.62
Multiples of: 1

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