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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EL827S1(TA)


Transistor Output Optocouplers Optocoupler Dual Ch Transistor DC Input
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Everlight 28231
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AUD 0.2825
Multiples of: 5

TLP383(D4BLLTL,E


Transistor Output Optocouplers Photocoupler, photo- transistor output
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Toshiba 1228
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AUD 0.3122
Multiples of: 1

TLP191B(U,C,F)


Toshiba Photodiode Output Optocouplers 2500Vrms 24 Int. shunt resistor
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Toshiba 1218
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AUD 8.4738
Multiples of: 1

MOC3051M


100mA 60mA 600V 1.18V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 1217
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AUD 0.1549
Multiples of: 5

HCPL2730S


High Speed Optocouplers SO-8 DUAL PH DARL
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ON Semiconductor 1217
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AUD 2.5088
Multiples of: 1

CNY17-2X007


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 1212
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AUD 0.3563
Multiples of: 1

TLP292-4(LGBTR,E


Toshiba Transistor Output Optocouplers 4ch Transistor opto coupler
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Toshiba 1209
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AUD 1.5761
Multiples of: 1

CNY174M


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 1111
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AUD 0.3087
Multiples of: 1

CYPC357(D-TP)


Optocouplers SOP-4 RoHS
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OCIC 1105
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AUD 0.0828
Multiples of: 5

4N29M


Transistor Output Optocouplers Photodarlington
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ON Semiconductor 0
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AUD 0.2854
Multiples of: 1

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