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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SFH620A-3X


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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Isocom 38800
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AUD 0.3254
Multiples of: 100

PS2505-1SM


Optocouplers SMD-4 RoHS
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Isocom 38800
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AUD 0.3491
Multiples of: 100

TLP620SM


Optocouplers SMD-4 RoHS
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Isocom 38800
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AUD 0.3524
Multiples of: 100

SFH620A-3XSMT&R


AC INPUT PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
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Isocom 38800
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AUD 0.4338
Multiples of: 1000

TLP620-2


Optocouplers DIP-8 RoHS
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Isocom 38800
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AUD 0.6713
Multiples of: 50

TLP620-2SM


Optocouplers SMD-8 RoHS
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Isocom 38800
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AUD 0.6981
Multiples of: 50

PS2505-2


Optocouplers DIP-8 RoHS
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Isocom 38800
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AUD 0.7519
Multiples of: 50

TIL198


Optocoupler DC-IN 2-CH Darlington DC-OUT 8-Pin PDIP
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Isocom 38800
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AUD 0.759
Multiples of: 50

TLP620-4


Optocouplers DIP-16 RoHS
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Isocom 38800
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AUD 1.317
Multiples of: 25

TLP620-4SM


Optocouplers SMD-16 RoHS
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Isocom 38800
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AUD 1.3698
Multiples of: 25

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