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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OPI126


High Speed Optocouplers Optoisolator
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TT Electronics 40
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AUD 17.2229
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PS2381-1Y-AX


Transistor Output Optocouplers BV = 5000Vr.m.s. -40c + 115c
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CEL 38
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AUD 1.8386
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NTE3223-4


OPTOCOUPLER QUAD NPN TRANS
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NTE 38
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AUD 4.095
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6N138


High Speed Optocouplers Low Input, High Gain DC Input
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Everlight 36
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AUD 0.87
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ILQ30


Transistor Output Optocouplers Photodarlington Out Quad CTR >100%
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Vishay 36
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AUD 2.7
Multiples of: 1

MOC3073M


Triac & SCR Output Optocouplers RAND PHASE TRIAC
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ON Semiconductor 35
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AUD 0.5091
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Hot LDA100


Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 35
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AUD 0.874
Multiples of: 1

HCPL-0721-000E


High Speed Optocouplers 25MBd 1Ch 150mA
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Broadcom 13
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AUD 6.94
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HCPL-M600-000E


High Speed Optocouplers 10MBd 3750Vdc
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Broadcom 9
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AUD 2.84
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H11G1SR2VM


Transistor Output Optocouplers Hi Volt Photodarling VDE Certified
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ON Semiconductor 0
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AUD 0.4547
Multiples of: 20

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