PCB Board Fiber FR2 10*15cm

Description

Product Overview: FR2 Phenolic Paper PCB (10cm x 15cm)

This 10cm x 15cm FR2 (Flame Retardant level 2) copper-clad laminate is a compact, budget-friendly substrate widely used for prototyping, student engineering projects, and simple, low-power electronic assemblies. Unlike FR4, which uses a fiberglass reinforcement, FR2 is composed of synthetic resin-bonded paper.

Technical Specifications

Key Characteristics

• Cost-Effective: FR2 is the most economical choice for hobbyists or educational labs where high-speed signal integrity or extreme thermal resistance is not required.

• Easy to Process: Because it is paper-based, you can cut it to size using a utility knife or shears and drill it with standard handheld tools.

• Thermal/Mechanical Profile: FR2 is more brittle than glass-epoxy (FR4). It has a lower glass transition temperature ($T_g$), meaning it can warp or delaminate if subjected to excessive soldering heat for too long.

• Performance: It is designed for low-frequency/DC applications. It is not recommended for high-speed digital circuits or high-frequency RF designs.

Fabrication Tips

• Soldering: Work quickly. Because the paper base is sensitive to heat, use a temperature-controlled iron set to a moderate level ($320^{\circ}\text{C}$ to $350^{\circ}\text{C}$) to prevent the copper pads from lifting.

• Etching: Perfectly compatible with standard chemical etchants like Ferric Chloride.

• Drilling: It is significantly easier on drill bits than FR4 boards, as the material is less abrasive. Use high-speed steel bits for clean, burr-free holes.

Typical Applications

• Entry-Level DIY Electronics: Breadboard-style projects moved to a permanent, soldered format.

• Educational Demonstrations: Teaching students the basics of PCB etching, through-hole component assembly, and soldering.

• Low-Power Controllers: Simple timers, light-sensing circuits, or basic LED driver boards.