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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6N137


High Speed Optocouplers 10Mb High Speed DC Input
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Everlight 100056
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AUD 0.2646
Multiples of: 1

FOD814ASD


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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ON Semiconductor 88270
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AUD 0.204
Multiples of: 1000

TLP291(GR-TP,SE


Toshiba Transistor Output Optocouplers 50mA 80V Gen Purp 50mA 1 Circuit
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Toshiba 81213
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AUD 0.1799
Multiples of: 5

EL357C


Optocouplers SOP-4 RoHS
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Youtai 81101
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AUD 0.0687
Multiples of: 10

EL817(C)-F


Optocouplers DIP-4 RoHS
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Everlight 76397
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AUD 0.0434
Multiples of: 20

TCMT1108


Transistor Output Optocouplers Phototransistor Out
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Vishay 76393
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AUD 0.2703
Multiples of: 1

PS2705A-1-F3-A


Transistor Output Optocouplers SGL Tr AC Couplr
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CEL 71328
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AUD 0.6374
Multiples of: 1

H11L1M


Logic Output Opto-couplers Optocoupler LC Schmitt Trigger
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ON Semiconductor 70821
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AUD 0.3676
Multiples of: 1

KPC357NT0CTLD


Optocouplers SMD-4 RoHS
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Cosmo 70771
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AUD 0.0837
Multiples of: 5

TLP265J(TPL,E


Triac & SCR Output Optocouplers Non Zero Turn On 600V 70mA 3750Vrms
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Toshiba 69479
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AUD 0.3774
Multiples of: 1

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