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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MOC3041XSM


Optotriac; 5.3kV; Uout:400V; zero voltage crossing driver
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Isocom 48485
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AUD 0.5546
Multiples of: 65

SFH610A-3X006


Transistor Output Optocouplers Phototransistor Out Single CTR>100-200%
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Vishay 1831
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AUD 0.6827
Multiples of: 1

CNY17G-1


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Dual CTR 40-80%
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Vishay 1828
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AUD 0.3827
Multiples of: 1

PC817B-MS


35V 50mA 1 6V 1.2V SOP-4 Optocouplers - Phototransistor Output ROHS
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MSKSEMI 1823
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AUD 0.031
Multiples of: 20

TCDT1122


Transistor Output Optocouplers Phototransistor Out
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Vishay 1823
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AUD 0.3504
Multiples of: 1

TIL111VM


Fairchild Semiconductor Transistor Output Optocouplers 6-Pin Optocoupler Transistor DIP
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ON Semiconductor 1807
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AUD 0.4211
Multiples of: 1

6N136-300E


High Speed Optocouplers 1 Mb/s 3750Vrms
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Broadcom 1795
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AUD 1.344
Multiples of: 1

ACPL-337J-500E


Logic Output Opto-couplers 2.5A IGBT Gate Drive Optocoupler 15V-30V
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Broadcom 1746
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AUD 2.7114
Multiples of: 1

TLP621GB-1S


SOP-4 Optocouplers - Phototransistor Output ROHS
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Youtai 722
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AUD 0.097
Multiples of: 5

TLP268J(TPL,E


Toshiba Triac & SCR Output Optocouplers Triac Optocoupler Low Trigger Current
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Toshiba 0
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AUD 0.4911
Multiples of: 3000

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