Electronic Connectors | McMaster-Carr

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11,631 Products

Most Likely Products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

1,560 products

Circuit Boards

Create your own circuit board designs by adding components

72 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

165 products

Development Board Cords

Connect your development board to components such as sensors and actuators

7 products

Terminals, Ferrules, and Lugs

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

1,268 products

Circuit Board Headers

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

20 products

All Results

Electrical

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

1,560 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

165 products

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

224 products

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

154 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

76 products

Amphenol Connectors

Attach wires to a circuit board

31 products

Mini Connectors

Plugs, sockets, and receptacles send power and signal to equipment and automated systems

69 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

173 products

USB Connectors

Plugs, sockets, and receptacles to make USB connections

72 products

CB Radio Connectors

Sockets and receptacles to connect CB radios

2 products

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

26 products

DMX Connectors

Replace damaged plugs and sockets on lighting cables

2 products

D-Sub Connectors

Plugs, sockets, and receptacles for connecting computers, monitors, and printers

138 products

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

14 products

Coaxial Connectors

Plugs, sockets, and receptacles to make coaxial connections

58 products

DisplayPort Connectors

Connect two DisplayPort cords of the same gender and connection type

1 product

USB Chargers

Power up mobile devices and other electronics

21 products

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

73 products

Video Adapters

Convert from one video connection to another

7 products

Ballast Connectors

Avoid exposure to live wires when replacing fluorescent ballasts

2 products

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

6 products

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

9 products

USB Extenders

Increase the reach of USB devices with a transmitter and receiver

3 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

Fiber-Optic Connectors

Join fiber-optic cords that have the same gender and connection type

9 products

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

3 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

Micro 360 Connectors

Plugs and sockets to make signal and data connections in tight spaces

20 products

Han Connectors

Stackable plugs and sockets to make Han connections

6 products

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

16 products

HDMI Adapters

Convert one HDMI size or style to another

11 products

Development Board Cords

Connect your development board to components such as sensors and actuators

7 products

Metric Circular Cords

Send power and signal to equipment with metric connections

543 products

Power Cords

Connect equipment and devices to a power source

275 products

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

2 products

Mini Cords

Often used to send power and signal to automated systems, motors, and pumps

207 products

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

199 products

Circuit Board Cords

Short lengths of terminated wire make temporary connections on circuit boards

24 products

Jumper Cables

Jump-start a dead battery

12 products

Control Cable

Send signals to control machinery and automated systems

25 products

Security Cable

Connect low-current security and intercom systems

8 products

Circuit Board Cable

Flat and flexible, connect circuit boards inside electronic devices

20 products

Breakaway Cords

Disconnect if pulled to prevent stress on cord

6 products

Mitutoyo Cords

Connect your measuring tool to miniprocessors, multiplexers, or PCs

22 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

59 products

Fiber-Optic Cords

Connect computers, servers, and switches in a fiber-optic network

34 products

Video Adapter Cords

Send video between devices with different connections

8 products

Ethernet Cords

Send data between computers, printers, servers, and switches

308 products

Audio Cords

Hook up speakers to an audio signal

13 products

Thunderbolt Cords

Transmit data and video at high speeds between PCs, mobile devices, and displays

2 products

DMX Cords

Connect to lighting equipment with five-pin XLR connections

3 products

Profibus Cords

Transmit data in automation systems and other networks

2 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

72 products

DisplayPort Cords

Send video from computers to monitors and other displays

26 products

Robot Controller Cords

Extend the distance between a robot arm and a controller

3 products

Battery Cords

Connect batteries to each other

31 products

USB Cords

Transfer data between computers, printers, and mobile devices

254 products

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

22 products

ix Industrial Cords

Send data or signals between equipment, such as a servomotor and encoder

6 products

Extension Cords

Extend the reach of power from an outlet

371 products

Robot Teach Pendant Cords

Connect robot controllers and teach pendants

25 products

USB Cord Locks

Keep your USB cord from shaking loose or being yanked out

2 products

Terminals, Ferrules, and Lugs

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

1,268 products

Circuit Board Headers

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

20 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

699 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

382 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Wrap Wire

Wrap around a circuit board post terminal without the need for soldering

8 products

Distribution Bars

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

31 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Electrical Connector Caps

Protect data connectors when not in use

78 products

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Distribution Blocks

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

47 products

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

28 products

Distribution Posts

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

4 products

Electrical Connector Seals

Add to the front or back of connectors to block out dust, debris, and weather

5 products

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

119 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Slip Rings

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

4 products

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Circuit Boards

Create your own circuit board designs by adding components

72 products

Development Boards

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

24 products

Development Board Programming Modules

Program development boards and other custom circuit boards

3 products

Development Board Holders

Keep a development board and breadboard in one spot for prototyping

1 product

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

17 products

Single-Board Computers

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

17 products

Ethernet Switches

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

68 products

Transistors

Boost weak electrical signals and rapidly control data transmission

20 products

PLCs

Program complex automation jobs by combining the functionality of a relay, timer relay, and switch

19 products

Electronic Lead Benders

Make 90° bends in resistors, diodes, and other small components

3 products

Manual Switches

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

2 products

Computers

Sturdy and reliable for harsh industrial jobsites, from frigid freezers to sweltering foundries

12 products

Resistors

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

491 products

Circuit Board Voltage Regulators

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

15 products

Grounding Lugs

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

1 product

Varistors

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

20 products

Diodes

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

93 products

Wire and Cable Crimpers

Crimp connectors onto electrical wire or cable

2 products

Battery Connectors

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

43 products

Circuit Board Capacitors

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

59 products

Battery Terminal Fasteners

Replace bolts in battery terminals

3 products

Battery Terminal Adapters

Convert one battery terminal style to another

6 products

Battery Jump Starters

Clamp to large-cell batteries to start vehicles and machines when you don't have access to an outlet

5 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

60 products

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

60 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 products

Outlet Boxes

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

5 products

Rectifiers

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

30 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,189 products

Transformers

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

237 products

Cable Entry Panels

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

128 products

EMI/RFI Suppressing Clips

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

64 products

Inductors

Resist changes in current to protect circuit board components from surges

15 products

Electronic Component Kits

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

2 products

Fastening and Joining

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

13 products

Welding Lug Covers

Install over welding lugs to prevent accidental contact with other connections

1 product

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

1 product

Measuring and Inspecting

Power Consumption Meters

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

1 product

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Patch Cords

Make point-to-point connections between electrical testing equipment and your devices

12 products

BNC Test Cords

Connect oscilloscopes and other testers to your equipment

4 products

Decade Boxes

Test and troubleshoot circuits without needing to solder capacitors or replace resistors

3 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Inertial Measurement Units

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

1 product

Fabricating and Machining

Electronic-Component Positioning Stands

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

1 product

Material Handling

Vacuum Lifters

Grip and move objects with air- or electric-powered suction

5 products

Lighting

Light Bulbs

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

26 products

Light Transmitters

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

18 products

Light Pipes

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

16 products

Light Switch/Receptacles

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

2 products

Fiber-Optic Flashlight Cable

Shine light into hard-to-reach spaces by attaching to your flashlight

1 product

Building and Machinery Hardware

Grommets

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

70 products

Communication

Display Screens

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

27 products

Computer Monitors

Display information in tough conditions such as on factory floors and outdoor jobsites

9 products