FR4 Boards | McMaster-Carr

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Thickness

Width

Length

Color

Shape

Performance

Electrically Insulating

Material

Fiberglass-Reinforced Plastic

Garolite

System of Measurement

Maximum Temperature

For Use Outdoors

RoHS

REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

Dielectric Strength

350 V/mil

350 V/mil to 800 V/mil

Hardness

Tolerance Rating

Flexural Strength

45,000 psi to 55,000 psi

45,000 psi to 60,000 psi

Minimum Temperature

-50° F

Not Rated

Tensile Strength

32,000 psi to 40,000 psi

35,000 psi to 50,000 psi

Compressive Strength Range

35,000 psi to 66,000 psi

35,000 psi to 68,000 psi

Water Absorption

0.1% to 0.15%

0.15%

Impact Strength

5.5 ft·lbf/in to 9.5 ft·lbf/in

5.5 ft·lbf/in to 12 ft·lbf/in

Number of Copper Clad Sides

Hole Center-to-Center

0.1"

2 mm

Solder Connection Type

667 Products

About Composites

Multipurpose Flame-Retardant
Garolite G-10/FR4 Sheets and Bars

A good all-around choice, Garolite G-10/FR4 is strong, machinable, and electrically insulating. It meets UL 94 V-0 for flame retardance.

Prototyping Circuit Boards

Circuit Boards

Drill holes of any size and etch your own circuit board design into copper-clad boards.

Ready-to-Use Circuit Boards

Also known as breadboards or proto-boards, these boards come with tin--lead-plated copper holes and solder pads or strips, so you can solder on components. They create more permanent connections than solderless circuit boards.

Ready-to-Use Circuit Boards with Enclosure

Also known as project boxes, these circuit boards are shaped to fit the included enclosure, so you don’t have to cut your board.

Lead-Free Ready-to-Use Circuit Boards

The gold-plated copper holes and solder pads on these boards contain no lead.