Optocouplers & Isolators in Australia
Shop optocouplers and isolators from AuscomTech. We stock practical optocoupler components, isolation modules and signal isolation parts for Arduino, ESP32, Raspberry Pi compatible boards, electronics projects, repairs, prototyping and low-voltage control circuits.
Whether you are isolating a microcontroller input, protecting a circuit, interfacing different voltage systems, repairing a board or building a signal isolation project, optocouplers and isolators help separate electrical circuits while still allowing signals to pass between them.
Shop Optocouplers & Isolators by Type
Our optocoupler and isolator range may include products such as:
PC817 Optocouplers: Common optocoupler components used for signal isolation, switching and microcontroller interface circuits.
Optocoupler Modules: Pre-assembled optocoupler boards used for Arduino, ESP32 and low-voltage electronics projects.
Digital Signal Isolators: Components and modules used to isolate digital control signals between circuits.
Relay Input Isolation Parts: Optocoupler-style parts used in relay boards, input circuits and switching projects.
Isolation Components: Parts used to help separate control circuits, reduce interference or protect sensitive electronics.
Optocouplers for Arduino, ESP32 & Electronics Projects
Optocouplers are commonly used when a control circuit needs electrical isolation from another circuit. They are used with microcontrollers, relay modules, industrial-style inputs, signal converters, switching circuits, sensors, motor controls and repair projects.
An optocoupler usually uses light inside the component to transfer a signal between two electrically separated sides. Always check input current, output type, voltage rating, current transfer ratio, switching speed, isolation rating, package type and circuit requirements before ordering.
PC817 Optocouplers, Isolation Modules & Signal Protection
PC817-style optocouplers are common in electronics projects and repair work because they are widely used for basic digital isolation and switching. Optocoupler modules can make wiring easier by adding resistors, terminals or headers around the isolation component.
For complete industrial signal isolators, 4-20mA isolators, 0-10V isolators and DIN rail signal converters, browse our industrial signal isolators and converters category. For relay boards with optocoupler-style inputs, browse our relay modules category.
Why Buy Optocouplers & Isolators from AuscomTech?
Australian stock: Products are shipped from Australia using Australia Post.
Practical product range: We stock useful isolation components and modules for electronics projects, repairs and prototyping.
Secure online checkout: Order online using supported secure payment options.
Helpful support: Need help choosing an optocoupler or isolator? Contact AuscomTech and we’ll help where we can.
Browse Optocouplers & Isolators Online
Explore our range of optocouplers and isolators in Australia, including PC817 optocouplers, optocoupler modules, digital signal isolators, relay input isolation parts and isolation components depending on current availability. You can also browse related categories such as transistors and MOSFETs, relays, switching and motor control and signal converter modules.
Frequently Asked Questions
What is an optocoupler used for?
An optocoupler is used to pass a signal between two circuits while keeping them electrically isolated. This can help protect sensitive electronics or separate different circuit sections.
What is a PC817 optocoupler?
A PC817 is a common optocoupler used in switching, signal isolation, microcontroller interface and repair applications.
Can I use optocouplers with Arduino or ESP32?
Yes. Optocouplers are commonly used with Arduino, ESP32 and other microcontrollers for isolated inputs, switching circuits and signal interface projects.
Are optocouplers the same as industrial signal isolators?
No. Optocouplers are component-level isolation parts or small modules. Industrial signal isolators are usually complete products designed for control panels, process signals and industrial wiring.
Can you help me choose the right optocoupler or isolator?
Yes. If you are unsure which part suits your project, contact AuscomTech with your input voltage, output circuit, signal type, switching speed, isolation needs and any existing part markings.
