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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PC123X2YSZ0F


Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP Sleeve
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AUD 0.2038
Multiples of: 100

KL3043


400V 1.5V DIP-6 Triac, SCR Output Optoisolators ROHS
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AUD 0.204
Multiples of: 5

KL3031


250V 1.5V DIP-6 Triac, SCR Output Optoisolators ROHS
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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.

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AUD 0.204
Multiples of: 5

KL3042


400V 1.5V DIP-6 Triac, SCR Output Optoisolators ROHS
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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.

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AUD 0.204
Multiples of: 5

KL3033


250V 1.5V DIP-6 Triac, SCR Output Optoisolators ROHS
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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.

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AUD 0.204
Multiples of: 5

TLP785(D4-GB.F(C


Transistor Output Optocouplers
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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.

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AUD 0.2043
Multiples of: 1

4N28S-TA1


Transistor Output Optocouplers PTR 10%, 0.5KV
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AUD 0.2134
Multiples of: 6000

CNY17-2S-TA1


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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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.

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AUD 0.2044
Multiples of: 1

TLP521-1XGB


0.1V@1mA,20mA DIP-4 Optocouplers - Phototransistor Output ROHS
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AUD 0.1898
Multiples of: 5

4N37SM


SMD-6P Transistor Output Optocoupler ROHS
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AUD 0.205
Multiples of: 5

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