Circuit Board Kits | McMaster-Carr

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50 Products

Electrical

Single-Board Computers

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

9 products

Development Boards

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

1 product

Circuit Boards

Create your own circuit board designs by adding components

5 products

Circuit Board Voltage Regulators

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

1 product

Resistors

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

13 products

Diodes

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

3 products

Electronic Component Assortments

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

2 products

Rectifiers

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

1 product

Circuit Board Cords

Short lengths of terminated wire make temporary connections on circuit boards

3 products

Circuit Board Headers

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

2 products

Circuit Board Capacitors

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

4 products

Communication

RFID Readers

Read RFID cards when prototyping systems or scan RFID tags to control circuits

1 product

Lighting

Light Bulbs

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

1 product