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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MOC3023SR2M


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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ON Semiconductor 76630
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AUD 0.3137
Multiples of: 1000

TLP621


DIP4 Through Hole Single Channel 55 V 5300 Vrms Phototransistor Optocoupler
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Isocom 38800
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AUD 0.2246
Multiples of: 100

PS2505-1


Optocouplers DIP-4 RoHS
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Isocom 38800
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AUD 0.3175
Multiples of: 100

PS2505-1SM


Optocouplers SMD-4 RoHS
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Isocom 38800
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AUD 0.3341
Multiples of: 100

TLP620SM


Optocouplers SMD-4 RoHS
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Isocom 38800
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AUD 0.3472
Multiples of: 100

SFH620A-3XSMT&R


AC INPUT PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Isocom 38800
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AUD 0.4274
Multiples of: 1000

TLP620-2


Optocouplers DIP-8 RoHS
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Isocom 38800
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AUD 0.6614
Multiples of: 50

TLP620-2SM


Optocouplers SMD-8 RoHS
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Isocom 38800
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AUD 0.6879
Multiples of: 50

PS2505-2


Optocouplers DIP-8 RoHS
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Isocom 38800
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AUD 0.7408
Multiples of: 50

SFH620A-3X


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5.3kV; DIP4
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Isocom 2661
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AUD 0.3005
Multiples of: 1

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