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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PS2505-1-A


Transistor Output Optocouplers Hi-Iso AC Input 1-Ch
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CEL 5142
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AUD 0.3991
Multiples of: 1

EL816(B)


Transistor Output Optocouplers Optocoupler Transistor DC Input
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Everlight 1857
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AUD 0.081
Multiples of: 5

SFH618A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO618A-3
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Vishay 1851
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AUD 0.5013
Multiples of: 1

K825P


Transistor Output Optocouplers Photodarlington Out Dual CTR > 600%
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Vishay 1849
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AUD 0.5599
Multiples of: 1

MOC3010SR2M


Triac & SCR Output Optocouplers 6Pin 250V Optocoupl Rand Phs Triac Drvr
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ON Semiconductor 1847
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AUD 0.4007
Multiples of: 1

ILD74-X009T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR > 12.5%
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Vishay 1844
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AUD 1.2019
Multiples of: 1

TLP185(GRH-TL,SE


Toshiba Transistor Output Optocouplers X36 PBF Trans Opto couplr 110C3750Vrms
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Toshiba 1813
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AUD 0.2492
Multiples of: 5

AMC1350QDWVRQ1


SP Amp ISOL Amp Single 5.5V
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Texas Instruments 1551
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AUD 7.1571
Multiples of: 1

TLP521-4X


Optoisolator Transistor Output 5300Vrms 4 Channel 16-DIP
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Isocom 1445
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AUD 1.114
Multiples of: 1

AT814A-CuH-S


5kV 50mA 200mV@1mA,20mA 1 6V 1.2V DC SMD-4P Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 717
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AUD 0.0712
Multiples of: 5

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