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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6N136SDVM


Fairchild Semiconductor High Speed Optocouplers 3.81 x 9.65 x 6.6mm 8 Lead Surface Mount
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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 : 772
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USD 0.7302

Multiples of: 1

Hot FOD2743B


Transistor Output Optocouplers Error Amplifier 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 Availability : 772
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USD 0.742

Multiples of: 1

HCPL2611SV


High Speed Optocouplers 13 Mbit Optocoupler 1Ch HS Logic Gate
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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 : 772
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USD 1.7344

Multiples of: 1

Hot FOD2711A


Transistor Output Optocouplers Isolated Error Amp Optocoupler
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ON Semiconductor Availability : 768
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USD 0.4368

Multiples of: 1

6N139


High Speed Optocouplers Darlington 100KBd Transistor Output
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Lite-On Availability : 767
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USD 0.2574

Multiples of: 1

MOC3012M


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 Availability : 767
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USD 0.2695

Multiples of: 1

CYPC817A


DIP-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.

OCIC Availability : 766
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USD 0.0235

Multiples of: 10

SL3021


SMD Optocouplers - Phototransistor Output ROHS
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SLKORMICRO Availability : 766
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USD 0.1903

Multiples of: 5

ACPL-32JT-500E


Logic Output Opto-couplers Auto Optocoupler T/RLF
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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.

Broadcom Availability : 766
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USD 3.6132

Multiples of: 1

4N33


Transistor Output Optocouplers Optocouplers
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Everlight Availability : 765
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USD 0.2422

Multiples of: 2

LTV-3150


Logic Output Optocouplers 1.0A IGBT Gate Drive 8 Pin 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.

Lite-On Availability : 762
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USD 0.8954

Multiples of: 1

ATW720-CuH-P


15Mbit/s 55us 5.5V 15kV/us DC SOP-6-P Logic 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.

AOTE Availability : 759
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USD 0.7035

Multiples of: 1

4N27-X009


Transistor Output Optocouplers Phototransistor Out Single CTR>10%
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Vishay Availability : 756
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USD 0.2519

Multiples of: 1

CNY17-2-500E


Transistor Output Optocouplers 5000 Vrms 0.3mA
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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.

Broadcom Availability : 754
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USD 0.2688

Multiples of: 1

PS817-SMD


Optocoupler; SMD; OUT: transistor; Uinsul: 5kV; CTR@If: 400%@5mA
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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.

Optosupply Availability : 749
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USD 0.0728

Multiples of: 5

ISP620-1XSM


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5.3kV
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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 : 747
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USD 0.2646

Multiples of: 1

CNY64ST


Transistor Output Optocouplers PHOTOTRANSISTOR OUT CTR 50-300%
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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 : 747
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USD 1.708

Multiples of: 1

KMOC3043S TL


SMD Optocouplers - Phototransistor Output ROHS
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Cosmo Availability : 746
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USD 0.1609

Multiples of: 5

CNY17-1X006


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR 40-80%
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Vishay Availability : 746
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USD 0.2288

Multiples of: 1

VOMA618A-2X001T


Transistor Output Optocouplers 80Vceo 3750Vrms SOP-4 CTR 63-125
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Vishay Availability : 746
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USD 1.1702

Multiples of: 1

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