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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ILD5


Transistor Output Optocouplers Phototransistor Out Dual CTR >50%
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Vishay 1335
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AUD 1.3689
Multiples of: 1

QCPL-329J-500E


Optocouplers SO-16 RoHS
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Broadcom 1335
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AUD 3.8148
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4N25-X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>20%
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Vishay 1333
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AUD 0.3998
Multiples of: 1

PS2502L-1-A


Transistor Output Optocouplers Optocoupler 4-pin DIP
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Renesas 1332
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AUD 0.6844
Multiples of: 1

H11L1M


Logic Output Optocouplers Optocouplers
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Everlight 1327
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AUD 0.8111
Multiples of: 1

FODM121


Optocoupler; SMD; Channels:1; Out: transistor; CTR@If:50-60%@1mA
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ON Semiconductor 1326
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AUD 0.3107
Multiples of: 1368

FOD8383


Fairchild Semiconductor Logic Output Optocouplers
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ON Semiconductor 1325
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AUD 4.819
Multiples of: 1

FOD0721R2


High Speed Optocouplers High CMR, 25Mbitsec Logic Gate
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ON Semiconductor 1324
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AUD 3.45
Multiples of: 1

TIL117M


Transistor Output Optocouplers 6-Pin DIP Optocplr Transistor Output
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ON Semiconductor 1323
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AUD 0.2951
Multiples of: 1

HCPL-3120-000E


Logic Output Opto-couplers 2.0A IGBT Gate Drive
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Broadcom 1293
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AUD 1.0534
Multiples of: 1

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