Electronics Connectors | McMaster-Carr

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9,484 Products

Electrical

Development Board Cords

Development Board Cords

Connect your development board to components such as sensors and actuators

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Terminals

Attach to the end of wire to connect circuits in control panels, motors, and small machines

Circuit Board Headers

Circuit Board Headers

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

Wire Splices

Join wire and protect the connection

Lug Covers

Install over welding lugs to prevent accidental contact with other welding connections

Terminal Blocks

Terminal Blocks

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

Electrical Wire

Electrical Wire

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

Electrical Connector Boots

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

Split-Bolt Connectors

Split-Bolt Connectors

Splice large wire sizes without special tools

Distribution Blocks

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

Data Connection Hubs

Data Connection Hubs

Add USB ports to a computer to connect more devices

Distribution Bars

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

Distribution Posts

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

Circuit Board Terminals

Circuit Board Terminals

Connect wire to circuit boards

Electrical Cable

Electrical Cable

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

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Slip Rings

Maintain an electrical link between a moving part and a stationary part

Edge Controllers

Edge Controllers

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

Development Boards

Development Boards

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

Circuit Boards

Create your own circuit board designs by adding components

Ethernet Switches

Ethernet Switches

Expand your data network by connecting computers, printers, and servers

Development Board Programming Modules

Development Board Programming Modules

Program development boards and other custom circuit boards

Development Board Holders

Development Board Holders

Keep a development board and breadboard in one spot for prototyping

Single-Board Computers

Single-Board Computers

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

Resistors

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

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

Electronic Component Kits

Electronic Component Kits

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

Circuit Board Voltage Regulators

Circuit Board Voltage Regulators

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

Varistors

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

Diodes

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

Battery Terminal Fasteners

Battery Terminal Fasteners

Replace bolts in battery terminals

Battery Terminal Adapters

Battery Terminal Adapters

Convert one battery terminal style to another

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Transformers

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

Battery Connectors

Battery Connectors

Quickly make and break connections between a battery and a charger or equipment

Battery Holders

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

Battery Terminals

Battery Terminals

Connect cable to battery posts to power vehicles and machines

Cable Entry Panels

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

Interference Suppressing Clips

Interference Suppressing Clips

Shield cable from EMI and RFI that can distort signals; also known as ferrite beads

Circuit Board Capacitors

Circuit Board Capacitors

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

Wire and Cable Crimpers

Wire and Cable Crimpers

Crimp connectors onto electrical wire or cable

Rectifiers

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

Light Switch/Receptacles

Light Switch/Receptacles

Combine a switch and receptacle into a single outlet box for a small footprint

Measuring and Inspecting

Power Consumption Meters

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

Load Cell Junction Boxes

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

Fabricating and Machining

Electronic-Component Workholders

Electronic-Component Workholders

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

Material Handling

Robot Vacuum Lifters

Robot Vacuum Lifters

Use suction to grip, lift, and move objects with a robot arm

Lighting

Light Bulbs

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

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Communication

Display Screens

Display Screens

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

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