Electronics Components | McMaster-Carr

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1,432 Products

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Development Boards

Development Boards

Prototype electronics and build simple automation systems by configuring inputs and outputs

Single-Board Computers

Single-Board Computers

Combine the functionality of a PC with the flexibility of a development board’s inputs and outputs

Electronic Component Kits

Electronic Component Kits

Include diodes, rectifiers, and transistors to convert current or amplify electronic signals

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Electrical

Development Boards

Development Boards

Prototype electronics and build simple automation systems by configuring inputs and outputs

Single-Board Computers

Single-Board Computers

Combine the functionality of a PC with the flexibility of a development board’s inputs and outputs

Circuit Boards

Create your own circuit board designs by adding components

Edge Controllers

Edge Controllers

Use in automated systems to monitor sensors, control actuators, and support wireless connections

Logic Level Converters

Logic Level Converters

Translate signals between development boards, sensors, and other components with different voltages

Manual Switches

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

Transistors

Boost weak electrical signals and rapidly control data transmission

Sensor Switches

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

Magnetic Switches

Magnetic Switches

Actuate when a magnet comes within sensing distance; often used to detect when doors or windows open

Electrical Plugs

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Electrical Connector Contacts

Electrical Connector Contacts

Crimp wire into pins and sleeves to create custom Molex or Amphenol connectors

Wire Wrapping Tools

Wire Wrapping Tools

Wrap circuit board wire tightly around post terminals for a strong connection

Circuit Board Headers

Circuit Board Headers

Make quick connections to development boards and other circuit boards when prototyping

Development Board Cords

Development Board Cords

Connect your development board to components such as sensors and actuators

Electrical Wire

Electrical Wire

Make single-wire connections; generally for lower voltages and shorter distances than cable

Terminal Blocks

Terminal Blocks

Mate with terminals to complete circuits in control panels, motors, and small machines

Electrical Cable

Electrical Cable

Make multi-wire connections; generally for higher voltages and longer distances than wire

Circuit Board Terminals

Circuit Board Terminals

Connect wire to circuit boards

Electronic Component Kits

Electronic Component Kits

Include diodes, rectifiers, and transistors to convert current or amplify electronic signals

Resistors

Limit the electrical current flowing through circuits, adjust signal levels, and divide voltages

Circuit Board Voltage Regulators

Circuit Board Voltage Regulators

Power circuits from a high-voltage source without frying your system

Diodes

Route current in one direction and block it in the other to protect sensitive electronics

Varistors

Protect sensors, programmable logic controllers, and other small components from electrical surges

Thermal Interface Material

Thermal Interface Material

Dissipate heat away from electronic components

Circuit Board Capacitors

Circuit Board Capacitors

Store electrical energy then release it all at once to briefly boost power to circuit boards

Battery Holders

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

Battery Contacts

Battery Contacts

Add or replace contacts in battery holders and circuit boards

Transformers

Raise or lower voltage to meet the needs of an individual circuit

Rectifiers

Convert AC voltage to a constant DC voltage on a circuit board

Inductors

Resist changes in current to protect circuit board components from surges

DIN Rail Mounting Adapters

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

Communication

Reference Books

Reference Books

Keep industrial information, regulations, and processes on hand

Display Screens

Display Screens

Display text, numbers, symbols, and other information from your electronics

RFID Reader/Writers

RFID Reader/Writers

Scan RFID tags and cards to track inventory or grant building access

Fluid Handling

Pressure Transmitters

Pressure Transmitters

Send pressure readings to controllers and remote displays

Thermoelectric Modules

Thermoelectric Modules

Cool down enclosures, laser and optical equipment, and other devices to their ideal temperature

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Lighting

Light Bulbs

Standard household, miniature, compact, tubular, ultraviolet, infrared, and blacklight bulbs

Light Transmitters

Light Transmitters

Light up small and hard-to-reach areas such as the inside of models, prototypes, and circuit boards

Light Pipes

Concentrate and direct light from the bulb on a circuit board to a display

Fabricating and Machining

Electronic-Component Workholders

Electronic-Component Workholders

Pin components against a circuit board to free up your hands for soldering

Measuring and Inspecting

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

Inertial Measurement Units

Inertial Measurement Units

Mount to robot arms, cranes, and vehicles to accurately track their movements

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)