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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FOD819


Transistor Output Optocouplers 4PB TR DIP
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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 : 1923
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USD 0.6216

Multiples of: 1

VO615A-2X007T


Transistor Output Optocouplers H.Temp Phototrnstr 63-125 % 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 : 1922
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USD 0.1859

Multiples of: 1

VO3052-X007T


Triac & SCR Output Optocouplers Non Zero Crossing Phototriac 600V 10mA
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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 : 1922
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USD 0.491

Multiples of: 1

FOD8343TV


Logic Output Optocouplers 4A WIDE LEAD GATE D RIVER
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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 : 1921
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USD 1.5871

Multiples of: 1

AT817B-FeL-SE


5kV 50mA 6V 1.2V DC SMD-4P 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.

AOTE Availability : 1920
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USD 0.0234

Multiples of: 20

PC3SD12NTZAH


Triac & SCR Output Optocouplers Phototriac Coupler
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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 : 1920
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USD 0.3691

Multiples of: 1

ACPL-227-50BE


Transistor Output Optocouplers DC Phototx Coupler
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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 : 1920
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USD 0.5477

Multiples of: 1

PS817


Optocoupler; THT; 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 : 1918
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USD 0.068

Multiples of: 5

TLP181GB-S


3.75kV 6V 1.2V DC SOP-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.

AOTE Availability : 1915
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USD 0.0587

Multiples of: 5

CNY17F4M


Transistor Output Optocouplers Optocoupler Phototrans No Base
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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 : 1913
Ship by Wed. 12 Nov to Fri. 14 Nov Calender.png

USD 0.1863

Multiples of: 1

H11AA4SR2VM


Fairchild Semiconductor Transistor Output Optocouplers Optocoupler SM-DIP6 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 : 1913
Ship by Wed. 12 Nov to Fri. 14 Nov Calender.png

USD 0.3223

Multiples of: 1

TCMT1600T3


Transistor Output Optocouplers AC Input, Phtotrnstr 80-300% 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 : 1912
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USD 0.1377

Multiples of: 1

SL3H7C


SSOP-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.

SLKORMICRO Availability : 1911
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USD 0.104

Multiples of: 5

VOM618A-5T


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out CTR 50-100% 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 : 1911
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USD 0.1386

Multiples of: 1

LTV-816S-TP-D-CU


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.

Lite-On Availability : 1910
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USD 0.0389

Multiples of: 10

VOM160RT


Triac & SCR Output Optocouplers 600V 10mA 0.5K DV/DT Non-Zero Crossing
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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 : 1910
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USD 0.4012

Multiples of: 1

HCPL-2630-500E


Optocoupler Logic-Out Open Collector DC-IN 2-CH 8-Pin PDIP SMD 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.

Broadcom Availability : 1909
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USD 1.1118

Multiples of: 1

MOC3010SR2M


Triac & SCR Output Optocouplers 6Pin 250V 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 : 1908
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USD 0.2874

Multiples of: 1

HCPL-7800A-500E


Operational Amplifiers Isolation 1 4.5V ~ 5.5V 100kHz (-3dB) SMD-8_6.3mm 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.

Broadcom Availability : 1908
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USD 2.3609

Multiples of: 1

4N35-X017


Vishay Semiconductors Transistor Output Optocouplers Phototransistor Out Single CTR>100%
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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 : 1907
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USD 0.242

Multiples of: 1

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