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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SFH620A-3X016


Transistor Output Optocouplers Phototransistor Out AC-In CTR>100-320%
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Vishay 6211
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AUD 0.6135
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PS9151-V-F3-AX


High Speed Optocouplers HI-SPD OPTOCPLR SO-5
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Renesas 6199
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AUD 2.1346
Multiples of: 1

VO4158H


Triac & SCR Output Optocouplers Zero Crossing Photo Triac 800V 2mA
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Vishay 6198
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AUD 2.3365
Multiples of: 1

SFH6345-X017T


Vishay Semiconductors High Speed Optocouplers 1Mbd High-Speed Trans Out CTR>30%
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Vishay 6194
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AUD 1.2729
Multiples of: 1

ILQ615-3


Transistor Output Optocouplers Phototransistor Out Quad CTR 100-200%
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Vishay 6191
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AUD 1.8857
Multiples of: 1

MOC3021M


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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Lite-On 6151
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AUD 0.2577
Multiples of: 1

6N136


Optoisolator Transistor with Base Output 5300Vrms 1 Channel 8-DIP
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Vishay 6091
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AUD 0.781
Multiples of: 1

MOC3010M


Triac & SCR Output Optocouplers DIP-6 NON-ZERO TRIAC
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ON Semiconductor 5568
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AUD 0.3583
Multiples of: 1

MOCD223VM


Fairchild Semiconductor Transistor Output Optocouplers 8-Pin Optocoupler 2Ch Photodarlington
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ON Semiconductor 4758
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AUD 0.5421
Multiples of: 1

TLP183(GB-TPL,E


Toshiba Transistor Output Optocouplers X36 PBF Trans Opto couplr 110C3750Vrms
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Toshiba 1274
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AUD 0.418
Multiples of: 1

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