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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431405HB


TLP127 COUPLER DARL
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Toshiba Availability : 3
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USD 0.7917

Multiples of: 1

LTV-4N35


4N35 M LEAD FREE T-HOLE OPTOCOUPLER 6PIN DIP
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Vishay Availability : 0
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USD 0.1271

Multiples of: 1

PC817X0NSZ0F


Transistor Output Optocouplers Photocoupler DC 1.2V 30pF 80kHz
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Sharp Availability : 0
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USD 0.1319

Multiples of: 1

4N33/VSY


4N33 OPTOCOUPLER DARL 6PIN DIP
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Vishay Availability : 0
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USD 0.161

Multiples of: 1

PC817A


PC817A OPTOCOUPLER DIP
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Sharp Availability : 0
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USD 0.2194

Multiples of: 1

CNY17-2


CNY17-2 COUPLER TRAN 6PIN
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Vishay Availability : 0
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USD 0.2217

Multiples of: 1

PC817D


USE PC817X4J000F OPTOCOUPLER DIP4
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Sharp Availability : 0
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USD 0.2255

Multiples of: 1

CNY17-3


CNY17-3 MOVED TO 466245H T/HOLE BLACK
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Vishay Availability : 0
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USD 0.2259

Multiples of: 1

PC817X4J000F


PC817X4J000F PHOTOCOUPLER TRAN OUT 4-DIP
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Sharp Availability : 0
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USD 0.242

Multiples of: 1

1000-110-2103


10 WAY R/A FEMALE PCB HEADER
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Sherwood Availability : 0
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USD 0.4388

Multiples of: 1

058399HB


TLP521-4(A) SIN.TRANS. QUAD CHAN
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Toshiba Availability : 0
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USD 0.5002

Multiples of: 1

MRF5812GR1


BIPOLAR/LDMOS TRANSISTOR SO-8 LEADFREE T/R
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Microchip Availability : 0
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USD 0.648

Multiples of: 1

6N136020


Avago Technologies High Speed Optocouplers 1 Mbs 5000Vrms
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Broadcom Availability : 0
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USD 0.6672

Multiples of: 1

PC815XJ0000F


PC815XJ0000F PHOTOTRANSISTOR T/HOLE
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Sharp Availability : 0
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USD 0.6757

Multiples of: 1

PS2506-1


PS2506-1 OPTO 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.

CEL Availability : 0
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USD 0.6884

Multiples of: 1

PC829


PC829 INTEGRATED CIRCUIT DIP DIP8
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Vishay Availability : 0
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USD 0.8512

Multiples of: 1

MOC3041


MOC3041M OPTOCOUPLER T/HOLE
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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 : 0
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USD 1.0133

Multiples of: 1

MOC3041


MOC3041 OPTO TRIAC T/HOLE
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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 : 0
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USD 1.0133

Multiples of: 1

053000AB


6N136 #1801 PCNCCNPOC#82 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.

Vishay Availability : 0
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USD 1.0377

Multiples of: 1

PC725V


PC725V OPTOCOUPLER T/HOLE
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Sharp Availability : 0
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USD 1.0908

Multiples of: 1

1 2345...

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