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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FOC-817C-F


5kV 100mV 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.

NationStar Availability : 63195
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USD 0.019
Multiples of: 10

SFH6186-3T


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 : 63050
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USD 0.2787
Multiples of: 1000

EL3H7(C)(TA)-VG


Everlight Transistor Output Optocouplers 50-600CTR 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 Availability : 61401
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USD 0.0554
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 : 61070
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USD 0.0991
Multiples of: 5

VOS628A-3T


Transistor Output Optocouplers Phototransistor Out CTR 100-200% IF=1MA
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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 : 59501
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USD 0.2311
Multiples of: 1

PS2565L-1-F3-A


CEL Transistor Output Optocouplers Hi-Iso AC Input 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 : 58359
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USD 0.5313
Multiples of: 1

OR-3H7B-TP


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.

Orient Availability : 57976
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USD 0.0455
Multiples of: 10

LTV-354T


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:3.75kV
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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 : 57741
Ship by Tue. 06 Aug to Fri. 09 Aug Calender.png

USD 0.0717
Multiples of: 5

LTV-817S-TA1-B


Optocoupler; SMD; Channels:1; Out: transistor; Uinsul:5kV; Uce:35V
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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 : 57680
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USD 0.0396
Multiples of: 10

TLP155E(TPL,E)


Logic Output Optoisolator Push-Pull, Totem Pole 3750Vrms 1 Channel 15kV/µs CMTI 6-SO, 5 Lead
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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 : 57484
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USD 0.3718
Multiples of: 1

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