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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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 : 162680
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USD 0.0232

Multiples of: 20

TCMT1108


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 : 157805
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USD 0.165

Multiples of: 1

SFH6156-3T


Transistor Output Optocouplers Phototransistor Out Single CTR 100-200%
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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 : 147440
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USD 0.1431

Multiples of: 1000

VO617A-3X017T


Transistor Output Optocouplers RECOMMENDED ALT 782-SFH617A-3X017T
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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 : 145697
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USD 0.1001

Multiples of: 1

HMHA2801R2


Transistor Output Optocouplers 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 : 145500
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USD 0.1737

Multiples of: 2500

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 Availability : 145500
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USD 0.1782

Multiples of: 2500

PC817X2CSP9F


Transistor Output Optocouplers Photocoupler
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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.

Sharp Availability : 143787
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USD 0.0625

Multiples of: 5

TCMT1102


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 : 135488
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USD 0.165

Multiples of: 1

MOC3052SR2M


Triac & SCR Output Optocouplers 6Pin 600V Optocoupl Rand Phs Triac Drvr
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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 : 128040
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USD 0.2935

Multiples of: 1000

EL3H4(B)(TA)-VG


DIP Optocouplers SOP-4_P1.27 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 : 126492
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USD 0.0744

Multiples of: 5

VO618A-4X017T


Transistor Output Optocouplers Optcplr 160-320% CTR 1mA DIP-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 : 123243
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USD 0.1155

Multiples of: 1

6N137-000E


High Speed Optocouplers 10 Mb/s 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 : 104357
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USD 0.793

Multiples of: 1

PS9817A-2-F3-AX


High Speed Optocouplers Hi-Speed Optocplr SO-8
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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 Availability : 99812
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USD 2.189

Multiples of: 1

PC357N2J000F


Transistor Output Optocouplers 130-260% CTR ranked PC357NJ0000F
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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.

Sharp Availability : 99478
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USD 0.0924

Multiples of: 5

TLP184(GB-TPL,SE


Toshiba Transistor Output Optocouplers 50mA Photocoupler 80V 50mA 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.

Toshiba Availability : 99124
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USD 0.1038

Multiples of: 5

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 : 96030
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USD 0.1526

Multiples of: 1000

TLP187(TPL,E(T


Optocouplers SO-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.

Toshiba Availability : 94672
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USD 0.166

Multiples of: 5

MOC3021S-TA1


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 : 87838
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USD 0.0922

Multiples of: 5

TLP185(GB-TPR,SE(T


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.

Toshiba Availability : 66930
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USD 0.1364

Multiples of: 3000

LTV-354T-A


Transistor Output Optocouplers P/C LTV-354T-A 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 Availability : 27737
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USD 0.0642

Multiples of: 5

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