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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6N137S


10Mbit/s 75ns,75ns DC SOP-8-2.54mm Optocouplers - Logic 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.

SLKORMICRO Availability : 4247
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USD 0.263

Multiples of: 1

SFH618A-3


Transistor Output Optocouplers RECOMMENDED ALT 78-VO618A-3
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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 : 4223
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USD 0.3509

Multiples of: 1

TCET1102


Transistor Output Optocouplers Phototransistor Out
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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 : 4219
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USD 0.1639

Multiples of: 1

LTV816D-S


Optocouplers SOP-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.

Youtai Availability : 4213
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USD 0.0323

Multiples of: 10

TLP2348(TPL,E(T


SOP-5-3.6mm Optocouplers - Logic 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.

Toshiba Availability : 4208
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USD 0.565

Multiples of: 1

VOL628AT


Transistor Output Optocouplers CPLR
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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 : 4201
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USD 0.3937

Multiples of: 1

TLP290(GR,SE(T


Optocoupler AC-IN 1-CH Transistor DC-OUT 4-Pin SO T/R
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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.

Toshiba Availability : 4185
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USD 0.2735

Multiples of: 4315

MOC205R2M


Transistor Output Optocouplers 8-Pin Optocoupler 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 Availability : 4181
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USD 0.2497

Multiples of: 1

MTLP521-1GB(DIP)


DIP-4 Transistor, Photovoltaic 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.

MSKSEMI Availability : 4166
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USD 0.0721

Multiples of: 5

TCMT1101


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out
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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 : 4160
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USD 0.1927

Multiples of: 1

FODM217AR2V


Transistor Output Optocouplers 4SO TR
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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 : 4153
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USD 0.1947

Multiples of: 1

PS2802-1-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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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.

CEL Availability : 4110
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USD 1.134

Multiples of: 1

FOD4208SV


Triac & SCR Output Optocouplers Random Phase Triac Snubberless
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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 : 4110
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USD 1.9881

Multiples of: 1

TLP290(GB.SE(T


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV; SO4
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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.

Toshiba Availability : 4104
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USD 0.2744

Multiples of: 1

LTV-702VS-TA1


Transistor Output Optocouplers 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 : 4092
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USD 0.1236

Multiples of: 1

VO617A-4


Transistor Output Optocouplers RECOMMENDED ALT 782-SFH617A-4
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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 : 4074
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USD 0.1089

Multiples of: 1

6N137-560E


Avago Technologies High Speed Optocouplers 10 Mbs 3750Vrms
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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 : 4073
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USD 0.5434

Multiples of: 1

VOS617A-9X001T


Vishay Semiconductors Transistor Output Optocouplers CTR 200-400% 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.

Vishay Availability : 4065
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USD 0.1705

Multiples of: 1

VO3053


Triac & SCR Output Optocouplers Non-Zero Crossing Photo 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.

Vishay Availability : 4017
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USD 0.3652

Multiples of: 1

HCPL0701R2


Fairchild Semiconductor High Speed Optocouplers Hi Gain Optocoupler 1Ch LC Darlington
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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 : 2318
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USD 1.1496

Multiples of: 1

First...5152535455...

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