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.
First...211212213214215...
Image  Information Image Stock Code(▲▼)Description
Manufacturer
Global Stock ⓘ (▲▼)Price(USD) 

(Ex. GST)(▲▼)		Enter Qty
K3021P


Triac & SCR Output Optocouplers Phototriac Output
Icon ROHS
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
Calender.png

USD 0.0582

Multiples of: 102

CT817C(S)(T3)-H


Optocouplers SOP-4 RoHS
Icon ROHS
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.

CT Micro International Availability : 0
Calender.png

USD 0.0582

Multiples of: 10

ISP817XCSM


- Optocouplers - Phototransistor Output ROHS
Icon ROHS
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.

Isocom Availability : 0
Calender.png

USD 0.0582

Multiples of: 5

PC357N1J0000C


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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 : 0
Calender.png

USD 0.0586

Multiples of: 5

CYTLP185(BLL-TP)


SOP-4 Optocouplers - Phototransistor Output ROHS
Icon ROHS
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.

OCIC Availability : 0
Calender.png

USD 0.059

Multiples of: 5

UPC817AG-D04-T


35V 100mV@1mA,20mA 1 6V 1.2V DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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.

Unisonic Availability : 0
Calender.png

USD 0.059

Multiples of: 5

TPC817S1C RAG


Transistor Output Optocouplers VCEO=80V, IF=50m, CTR:200~400% DC Input Phototransistor
Icon ROHS
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.

Taiwan Semiconductor Availability : 0
Calender.png

USD 0.0592

Multiples of: 2000

EL817S(C)(TA)


EL817S(C)(TA)
Icon ROHS
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 : 0
Calender.png

USD 0.0592

Multiples of: 1

MPS2701-1-L


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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 : 0
Calender.png

USD 0.0593

Multiples of: 5

MPC357D


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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 : 0
Calender.png

USD 0.0593

Multiples of: 5

MPS2701-1-K


SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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 : 0
Calender.png

USD 0.0593

Multiples of: 5

CYPS2501-1(L)


DIP-4 Transistor Output Optocoupler ROHS
Icon ROHS
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.

OCIC Availability : 0
Calender.png

USD 0.0597

Multiples of: 5

KPC357NT0ATLD


Optocouplers SOP-4_P2.54 RoHS
Icon ROHS
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.

Cosmo Availability : 0
Calender.png

USD 0.0598

Multiples of: 5

LTV-214A


3.75kV 50mA 200mV@1mA,20mA 1 1.4V AC,DC SSOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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 : 0
Calender.png

USD 0.0599

Multiples of: 5

EL817(B)(ETN)-F


DIP Optocouplers DIP-4 RoHS
Icon ROHS
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 : 0
Calender.png

USD 0.0601

Multiples of: 10

EL816C-F


Optocouplers DIP-4 RoHS
Icon ROHS
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 : 0
Calender.png

USD 0.0602

Multiples of: 10

KL354N-A-TA


3.75kV 1.2V SOP-4 Transistor, Photovoltaic Output Optoisolators ROHS
Icon ROHS
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.

Kinglight Availability : 0
Calender.png

USD 0.0606

Multiples of: 5

ILD620


Transistor Output Optocouplers Phototransistor Out Dual CTR >50%
Icon ROHS
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
Calender.png

USD 0.061

Multiples of: 1

CT1018(V)(T1)-W


Optocouplers SOP-4 RoHS
Icon ROHS
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.

CT Micro International Availability : 0
Calender.png

USD 0.0612

Multiples of: 5

EL816D-F


Optocouplers DIP-4 RoHS
Icon ROHS
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 : 0
Calender.png

USD 0.0614

Multiples of: 5

First...211212213214215...

Looking for help? Visit our FAQ's Section to answer to all your questions

Resources

Company

Support

 

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
  +61 8 9358 9358 |   sales@x-on.com.au |   Chat
 
Policies | Terms and Conditions | Sitemap

Copyright ©2025  X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted ISO Certified AS9120 Certified