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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PS2501-4XSM


Optoisolator Transistor Output 5300Vrms 4 Channel
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Isocom 97000
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AUD 1.1345
Multiples of: 25

MCT275


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP
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Isocom 96970
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AUD 0.3175
Multiples of: 65

MCT210


Transistor Output Optocouplers DIP-6 PHOTO TRANS
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Isocom 96970
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AUD 0.3084
Multiples of: 65

MCT2


Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP
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Isocom 96970
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AUD 0.5502
Multiples of: 65

H11L2


Optocoupler; THT; Channels:1; Out: Schmitt trigger; DIP6
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Isocom 96970
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AUD 0.6796
Multiples of: 65

H11L1SM


Optocoupler; SMD; Channels:1; Out: Schmitt trigger; SMD6
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Isocom 96970
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AUD 0.7154
Multiples of: 65

IS121


Optocouplers SOP-4_P2.54 RoHS
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Isocom 96030
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AUD 0.2205
Multiples of: 3000

IS126


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV
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Isocom 96030
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AUD 0.3114
Multiples of: 3000

IS127


Optoisolator Darlington Output 3750Vrms 1 Channel
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Isocom 96030
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AUD 0.5141
Multiples of: 3000

CNY173SR2M


Transistor Output Optocouplers Optocoupler Hi Bvceo Phototransistor
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ON Semiconductor 6790
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AUD 0.2776
Multiples of: 1000

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