A "PC Board 6X28" typically refers to a 20x80mm (roughly 2x8cm) double-sided prototyping PCB featuring a 6x28 hole matrix. These boards are designed for DIY electronic projects, allowing users to solder components without a breadboard.

Dimensions: 20 mm x 80 mm (2 x 8 cm)
Hole Matrix: 6 rows × 28 columns (168 holes total)
Hole Pitch: 2.54 mm (0.1 inches), standard for ICs and pin headers
Hole Diameter: 1.0 mm
Thickness: 1.6 mm
Material: FR-4 glass fiber, double-sided with pre-tinned pads [1, 2, 3, 4]

Prototyping: Transitioning a layout from a temporary breadboard to a permanent circuit.
Small Projects: Building compact filters, LED drivers, or single-IC custom modules.
Soldering Practice: Learning or teaching basic electronic component assembly. [1, 2, 3, 4]