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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KMOC3061


DIP Optocouplers - Phototransistor Output ROHS
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Cosmo 8080
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AUD 0.2128
Multiples of: 5

IL252


Transistor Output Optocouplers Phototransistor Out Single CTR >100%
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Vishay 520
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AUD 0.9027
Multiples of: 1

CPC5903G


Logic Output Optocouplers Dual Opto Isolated I2C Bus Repeater
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IXYS 519
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AUD 4.25
Multiples of: 1

ISP817XCSMT&R


Optocouplers SMD-4 RoHS
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Isocom 518
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AUD 0.1684
Multiples of: 5

VO4258M-X007T


Triac & SCR Output Optocouplers Non Zero Cross Photo Triac 800V 3mA
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Vishay 518
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AUD 2.6923
Multiples of: 1

Hot FOD2741B


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 517
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AUD 0.8567
Multiples of: 1

MCT5211TVM


Transistor Output Optocouplers 6P-DIP LO-INPUT CURR PHOTO OUTPT-OPTOCOUP
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ON Semiconductor 517
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AUD 0.8931
Multiples of: 1

AT4N32-CuH-D


100mA 5kV 1V@2mA,8mA 1 3V 1.3V DC DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 514
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AUD 0.1676
Multiples of: 5

AT6N138-CuH-D


4.5V~18V 1kV DC DIP-8 Logic Output Optoisolators ROHS
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AOTE 514
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AUD 0.2934
Multiples of: 5

ACPL-796H-500E


SOP-16-300mil Logic Output Optoisolators ROHS
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Broadcom 485
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AUD 1.426
Multiples of: 1

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