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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MOC3083X


Optotriac; 5.3kV; Uout:800V; zero voltage crossing driver; DIP6
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Isocom 48485
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AUD 0.7071
Multiples of: 65

H11AA4VM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler SM-DIP6 Phototransistor
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ON Semiconductor 470
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AUD 0.4487
Multiples of: 1

ACPL-064L-500E


High Speed Optocouplers Optocouplers 10MBd
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Broadcom 469
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AUD 2.1427
Multiples of: 1

4N37TVM


Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 468
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AUD 0.4016
Multiples of: 1

TLP2348(E(T


Logic Output Optocouplers
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Toshiba 468
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AUD 1.1338
Multiples of: 1

LDA111S


IXYS Integrated Circuits Transistor Output Optocouplers Optocoupler Single-Transistor
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IXYS 467
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AUD 0.9813
Multiples of: 1

4N30


DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS
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Everlight 465
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AUD 0.378
Multiples of: 5

TLP5772(TP,E


Logic Output Optocouplers Gate Drive Coupler 10V 2.5A
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Toshiba 465
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AUD 0.9624
Multiples of: 1

ISP621-4XSM


Optocoupler; SMD; Channels:4; Out: transistor; Uinsul:5.3kV
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Isocom 465
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AUD 1.2622
Multiples of: 1

4N27


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:1.5kV; DIP6
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Lite-On 460
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AUD 0.1711
Multiples of: 1

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