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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MCT5211SR2M


Transistor Output Optocouplers Phototransistor
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ON Semiconductor 1105
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AUD 0.9411
Multiples of: 1

BRT13H


Triac & SCR Output Optocouplers Phototriac Output Non-Zero Crossing
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Vishay 1105
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AUD 3.754
Multiples of: 1

HCPL-7800-000E


Optically Isolated Amplifiers 4.5 - 5.5 SV 8 dB
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Broadcom 1101
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AUD 4.0779
Multiples of: 1

LA212-D


SOP-4 Optocouplers - Phototransistor Output ROHS
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Letex Technology 1096
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AUD 0.4989
Multiples of: 1

IS126


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV
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Isocom 1091
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AUD 0.3178
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K824P


Transistor Output Optocouplers Phototransistor Out Dual CTR >20%
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Vishay 1089
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AUD 0.6731
Multiples of: 1

TLP170J(TP,F)


MOSFET Output Optocouplers PhotorelayMOS FET ION=2.5Amax
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Toshiba 1085
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AUD 1.3811
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CNY65A


Transistor Output Optocouplers Phototransistor Out Single CTR 63-125%
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Vishay 1079
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AUD 1.6221
Multiples of: 1

SFH6168-2T


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5.3kV
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Vishay 1078
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AUD 0.4156
Multiples of: 1

PC3H7CJ0001H


Transistor Output Optocouplers OPTOISOLATOR TRANSISTOR SMD, Optoisolator Output Channel
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Sharp 776
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AUD 0.3229
Multiples of: 5

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