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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EL817S1(A)(TU)


Transistor Output Optocouplers Optocoupler Transistor DC Input
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Everlight 15641
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AUD 0.0764
Multiples of: 5

FOD3120SD


Logic Output Opto-couplers Optocoupl Logic-Out Push-Pul DC-In 1-Ch
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ON Semiconductor 14294
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AUD 0.9484
Multiples of: 1

SFH619A-X009


Transistor Output Optocouplers Photodarlington Out Single CTR > 1000%
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Vishay 14261
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AUD 0.7175
Multiples of: 1

TLP351(TP1,F)


Toshiba Logic Output Optocouplers IC cplr IGBT drive
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Toshiba 14245
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AUD 0.9828
Multiples of: 1

HCPL3700S


Logic Output Optocouplers Optocoupler aC/DC to Logic
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ON Semiconductor 14182
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AUD 4.7867
Multiples of: 1

PS2701A-1-A


Transistor Output Optocouplers Hi-Iso Photo 1-Ch
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CEL 14125
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AUD 1.2117
Multiples of: 1

VOM617A-3T


Transistor Output Optocouplers Phototransistor Out CTR 100-200% 5mA
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Vishay 13893
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AUD 0.2069
Multiples of: 1

CNY17F-3S-TA1


Transistor Output Optocouplers HCEV, 100%, 5KV
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Lite-On 13721
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AUD 0.2115
Multiples of: 1

TLP2301(GB-TPL,E(T


SOP-4 Optocouplers - Logic Output ROHS
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Toshiba 13674
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AUD 0.2717
Multiples of: 1

LTV-247-V-G-HC


SSOP-4 Optocouplers - Phototransistor Output ROHS
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Lite-On 13616
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AUD 0.4821
Multiples of: 1

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