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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MEL357B


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
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MSKSEMI 4500
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AUD 0.0617
Multiples of: 10

VOM453T


High Speed Optocouplers OPTOCPLR SOP-5 1MB
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Vishay 2682
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AUD 0.6972
Multiples of: 1

TCMT4600


Transistor Output Optocouplers Phototransistor Out Quad CTR 80-300%
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Vishay 1940
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AUD 1.5083
Multiples of: 2000

FOD8342V


Logic Output Optocouplers SO6 2.5A GD
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ON Semiconductor 1596
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AUD 0.7762
Multiples of: 1

MOC8103


Transistor Output Optocouplers Phototransistor Out Single CTR 108-173%
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Vishay 1557
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AUD 0.4745
Multiples of: 1

H11D1SR2VM


Optoisolator Transistor with Base Output 4170Vrms 1 Channel 6-SMD
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ON Semiconductor 1552
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AUD 0.5549
Multiples of: 1

LTV-829


Optocoupler; THT; Channels:2; Out: transistor; Uinsul:5kV; Uce:50V
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Lite-On 1528
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AUD 0.3185
Multiples of: 1

VO3052-X007T


Triac & SCR Output Optocouplers Non Zero Crossing Phototriac 600V 10mA
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Vishay 1487
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AUD 0.6534
Multiples of: 1

IL4108-X017


Triac & SCR Output Optocouplers Phototriac Output, Zero Crossing
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Vishay 1391
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AUD 2.4134
Multiples of: 1

HCPL062NR2


Logic Output Optoisolator 10Mbps Open Collector 2500Vrms 2 Channel 25kV/µs CMTI 8-SOIC
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ON Semiconductor 1344
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AUD 3.2509
Multiples of: 1

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