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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TLP620-4


Optocouplers DIP-16 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.

Isocom Availability : 38800
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USD 0.8898
Multiples of: 1000

TLP620-4SM


Optocouplers SMD-16 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.

Isocom Availability : 38800
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USD 0.9329
Multiples of: 1000

SFH6156-3X001T


Transistor Output Optocouplers Optocplr Phototrnstr 100-200% CTR VDE
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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.

Vishay Availability : 38658
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USD 0.1552
Multiples of: 1

EL814S1(A)(TU)-V


Transistor Output Optocouplers Optocoupler Transistor AC Input
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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 Availability : 38567
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USD 0.1147
Multiples of: 5

MOC3021


Optotriac; 5kV; Uout:400V; without zero voltage crossing driver
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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 Availability : 38362
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USD 0.0957
Multiples of: 5

VO617A-4X007T


Transistor Output Optocouplers H. Relblty 5300 Vrms 160-320% CTR
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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.

Vishay Availability : 38286
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USD 0.1037
Multiples of: 1

EL817B-F


Optocouplers DIP-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 Availability : 38159
Ship by Tue. 06 Aug to Fri. 09 Aug Calender.png

USD 0.0283
Multiples of: 20

PS2505-1


Optocouplers DIP-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.

Isocom Availability : 37830
Ship by Tue. 23 Jul to Mon. 29 Jul Calender.png

USD 0.2153
Multiples of: 3000

LOC110STR


IXYS Integrated Circuits High Linearity Optocouplers Single Linear 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.

IXYS Availability : 36133
Ship by Mon. 29 Jul to Wed. 31 Jul Calender.png

USD 1.334
Multiples of: 1

FOD817A3SD


Transistor Output Optocouplers Opto Phototransistor Output SM-DIP4
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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 Availability : 17460
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USD 0.1321
Multiples of: 1000

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