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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FOD050L


High Speed Optocouplers 1 Mbit/s SCHS Transistor Output
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ON Semiconductor 2898
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AUD 1.5994
Multiples of: 1

PS9031-Y-V-F3-AX


Logic Output Optocouplers HI-SPEED OPTOCPLR LSO5
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Renesas 2898
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AUD 1.6848
Multiples of: 1

CNY17-3X017


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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Vishay 2895
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AUD 0.4068
Multiples of: 1

TLP185GB-S


5kV 6V 1.4V DC SMD-4P Transistor, Photovoltaic Output Optoisolators ROHS
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AOTE 2890
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AUD 0.0721
Multiples of: 10

MOC211VM


Transistor Output Optocouplers 8-Pin Optocoupler Phototransistor
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ON Semiconductor 2890
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AUD 0.3751
Multiples of: 1

SFH610A-1


Transistor Output Optocouplers RECOMMENDED ALT 78-VO610A-1
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Vishay 2890
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AUD 0.3991
Multiples of: 1

FODM3022R2_NF098


Fairchild Semiconductor Triac & SCR Output Optocouplers 400V Random Phase Triac Driver 10mA
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ON Semiconductor 2888
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AUD 0.8189
Multiples of: 1

FOD8163TR2


Logic Output Opto-couplers 3.3V/5V Logic Gate Optocoupler
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ON Semiconductor 2888
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AUD 2.0125
Multiples of: 1

FODM121V


Fairchild Semiconductor Transistor Output Optocouplers
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ON Semiconductor 2887
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AUD 0.4582
Multiples of: 1

KPS28050ETLD


Optocouplers SOP-4 RoHS
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Cosmo 2885
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AUD 0.2934
Multiples of: 5

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