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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HCPL0638


High Speed Optocouplers 100B Logic Dual Ch Hi Perform Optocuplr
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ON Semiconductor 1480
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AUD 2.2643
Multiples of: 1

LTV-357T-A


Transistor Output Optocouplers P/C LTV-357T BIN A (2.0) STD. TYPE
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Lite-On 1479
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AUD 0.0982
Multiples of: 5

TLP185(GB-TPR,SE(T


Transistor Output Optocouplers
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Toshiba 1476
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AUD 0.2438
Multiples of: 761

CNY17-3-000E


Transistor Output Optocouplers 5000 Vrms 0.3mA
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Broadcom 1476
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AUD 0.402
Multiples of: 1

LTV-6341W-TA1


SOP-6-6.8mm Optocouplers - Phototransistor Output ROHS
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Lite-On 1475
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AUD 0.8598
Multiples of: 1

AT3083-CuH-DE


100mA 60mA 800V 1.23V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1474
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AUD 0.1545
Multiples of: 5

4N37SM


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:7.5kV
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ON Semiconductor 1474
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AUD 0.2593
Multiples of: 1

H11A1SM


Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 1470
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AUD 0.2844
Multiples of: 1

VO615A-4X018T


Vishay Semiconductors Transistor Output Optocouplers Optocoupler SMD4
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Vishay 1467
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AUD 0.165
Multiples of: 1

6N137-X006


High Speed Optocouplers 10Mbd High-Speed Single CTR>300%
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Vishay 1463
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AUD 1.0969
Multiples of: 1

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