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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IS357


Optoisolator Transistor Output 3750Vrms 1 Channel 4-SMD
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Isocom 2842
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AUD 0.242
Multiples of: 1

HMHA2801V


Transistor Output Optocouplers Optocoupler Phototransistor
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ON Semiconductor 2840
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AUD 0.2829
Multiples of: 1

FODM217BV


Transistor Output Optocouplers 4SO TR
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ON Semiconductor 2837
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AUD 0.3064
Multiples of: 1

14230634500


Triac & SCR Output Optocouplers WL-OCTR Optocoupler Triac ZC / WEM30x SOP4 600V 5mA ZC
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Wurth 2835
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AUD 0.737
Multiples of: 1

AT3021-CuH-DE


100mA 60mA 400V 1.23V Two-way thyristor DIP-6 Triac, SCR Output Optoisolators ROHS
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AOTE 2832
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AUD 0.1236
Multiples of: 5

VO615A-4


Vishay Semiconductors Transistor Output Optocouplers Optocoupler DIP4
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Vishay 2830
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AUD 0.1681
Multiples of: 1

FODM3052V-NF098


Triac & SCR Output Optocouplers 4SO RP TRIAC VDE
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ON Semiconductor 2824
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AUD 0.9398
Multiples of: 1

ATM3082-CuH-SE


100mA 60mA 800V 1.23V Two-way thyristor SOP-4 Triac, SCR Output Optoisolators ROHS
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AOTE 2822
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AUD 0.2015
Multiples of: 5

TLP387(D4-TPR,E(T


SOIC-4 Transistor, Photovoltaic Output Optoisolators ROHS
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Toshiba 2743
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AUD 0.6833
Multiples of: 1

TLP701(TP,F)


Logic Output Opto-couplers IC Cplr IGBT drive IFLH=5mA
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Toshiba 2742
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AUD 1.1795
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