About Optocouplers / Photocouplers

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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EL817S1(C)(TU)-F


Optocouplers SMD-4 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.

Everlight 1002920
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AUD 0.0471
Multiples of: 30

PS2811-1-F3-A


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:2.5kV; SSOP4
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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.

RENESAS 898381
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AUD 0.5255
Multiples of: 1

LTV-357T-C


Transistor Output Optocouplers P/C LTV-357T BIN C (2.0) STD. TYPE
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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.

Lite-On 884623
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AUD 0.071
Multiples of: 5

EL817S1(B)(TU)-F


Optocouplers SMD-4 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.

Everlight 711873
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AUD 0.048
Multiples of: 30

PC817C


SMD-4 Optocouplers - Phototransistor Output 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.

GOODWORK 626410
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AUD 0.028
Multiples of: 20

EL3H7(B)(TA)-G


Transistor Output Optocouplers 130-260CTR 3750Vrms -55 to +110 Op Temp
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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.

Everlight 613999
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AUD 0.0752
Multiples of: 50

MOC3052VM


Triac & SCR Output Optocouplers DIP-6 NON-ZERO TRIAC
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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.

ON Semiconductor 515688
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AUD 0.4776
Multiples of: 1

LTV-217-C-G


Lite-On Transistor Output Optocouplers Optocoupler, AC 600%, 5KV, 4 PIN
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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.

Lite-On 459421
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AUD 0.0766
Multiples of: 5

FODM2705R2


Transistor Output Optocouplers AC In Photo Xsistor Output Optocoupler
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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.

ON Semiconductor 373450
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AUD 0.43
Multiples of: 2500

MOCD207R2M


Transistor Output Optocouplers 8-Pin Optocoupler 2Ch Phototransistor
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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.

ON Semiconductor 366175
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between Mon. 22 Jul to Fri. 26 Jul Calender.png

AUD 0.62
Multiples of: 2500

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