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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SFH6156-1X001T


Transistor Output Optocouplers Phototransistor Out Single CTR > 40-80%
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Vishay 4262
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AUD 0.2549
Multiples of: 1

PS2815-1-A


Transistor Output Optocouplers Hi CTR AC Input 1-Ch
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CEL 4261
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AUD 2.6031
Multiples of: 1

TLP291(GB-TP,SE(O


Optocouplers SO-4 RoHS
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Toshiba 4259
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AUD 0.4081
Multiples of: 1

MOC3020S


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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Lite-On 4256
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AUD 0.3011
Multiples of: 1

IL420


Triac & SCR Output Optocouplers Phototriac Output Low Input Current
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Vishay 4248
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AUD 2.3746
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6N137S


10Mbit/s 75ns,75ns DC SOP-8-2.54mm Optocouplers - Logic Output ROHS
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SLKORMICRO 4247
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AUD 0.4174
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FOD3150ASD


Logic Output Opto-couplers 8PW 2.5A GD T&R
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ON Semiconductor 4230
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AUD 1.0086
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SFH618A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO618A-3
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Vishay 4223
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AUD 0.557
Multiples of: 1

TCET1102


Transistor Output Optocouplers Phototransistor Out
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Vishay 4219
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AUD 0.2602
Multiples of: 1

LTV816D-S


Optocouplers SOP-4 RoHS
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Youtai 4213
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AUD 0.0512
Multiples of: 10

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