Overview
The Kepro FR-4 PCB 51-36G is a professional-grade, photosensitive copper clad laminate designed for PCB fabrication and prototyping. Manufactured by Kepro Circuit Systems, this board combines standard FR-4 substrate material with photoresist coating for precise circuit pattern transfer. The 1-sided design with 1oz copper weight delivers balanced conductivity and ease of etching, making it suitable for electronics hobbyists, technicians, and design engineers working on prototype circuits and small-batch production.
Key Features
- FR-4 substrate material — proven dielectric performance for reliable circuit operation
- 1oz copper clad weight — optimal balance of current capacity and etching precision
- Single-sided design — simplified layout and routing for two-layer or component-side applications
- Photosensitive surface — enables UV exposure for accurate circuit pattern definition
- Compact dimensions (3″ × 6″) — suitable for small-to-medium circuit designs and educational projects
- New, sealed condition — guaranteed integrity from factory
Technical Specifications
- Material: FR-4 fiberglass epoxy laminate
- Copper Weight: 1oz (35μm nominal)
- Sides: 1-sided copper clad
- Length: 3 inches
- Width: 6 inches
- Thickness: 0.062 inches (1.57mm)
- Surface Finish: Photosensitive (UV-sensitive resist)
- Condition: New in Box
- Manufacturer: Kepro Circuit Systems
- Part Number: 51-36G
Typical Applications
- Prototype circuit board development
- Amateur radio and ham radio projects
- Hobbyist electronics and Arduino-based circuits
- Educational laboratory PCB fabrication
- Small-batch custom circuit production
- Design verification and engineering samples
Compatibility & Replacements
Compatible With
- Standard PCB etching solutions (ferric chloride, ammonium persulfate)
- UV exposure sources (365nm wavelength optimal)
- Common PCB drilling and routing tools
- Solder and component assembly processes
Replaces / Drop-In Replacement For
The Kepro 51-36G is a direct replacement for other Kepro FR-4 photosensitive copper clad boards of identical dimensions and copper weight. Verify dimensions and copper weight against your legacy part number before ordering to ensure compatibility.
Works With
- UV lightbox or exposure equipment (365nm wavelength)
- PCB development solutions and etchants
- Standard PCB drill bits and milling cutters
- Solder masking and silk-screen processes
- Through-hole and surface-mount component assembly
