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The FR-1 single sided PCB is a paper-based printed circuit board designed for electronic applications with relatively simple circuit layouts and cost-conscious manufacturing requirements.
FR-1 Paper Phenolic Base Material
Single-Sided Circuit Structure
1.6 mm Listed Board Thickness
Cost-Conscious Manufacturing Option
Flying Needle Electrical Test Listed
| Quantity: | |
|---|---|
XRX-1012
DGXRX
Parameter | Specification |
|---|---|
Product Name | FR-1 Single Sided PCB |
Model | XRX-1012 |
Base Material | FR-1 |
PCB Structure | Single-Sided PCB |
Board Thickness | 1.6 mm |
Copper Weight | To Be Confirmed |
Solder Mask Color | Confirm with Factory |
Drilling Diameter | Listed as 0.3–6.3 mm; confirm the applicable range |
Electrical Test | Flying Needle Test |
The table identifies the currently listed product information. Copper weight and solder mask color should be confirmed before publication. The listed drilling range also requires clarification to distinguish minimum and maximum hole diameters.
FR-1 is a paper-based phenolic laminate used in printed circuit board manufacturing. Unlike FR-4, which uses glass fiber reinforced epoxy laminate, FR-1 uses a paper reinforcement structure with phenolic resin.
This material is commonly considered for relatively simple electronic circuits where material cost and basic circuit functionality are important design considerations.
The paper reinforcement structure distinguishes FR-1 from glass fiber reinforced PCB materials. Its suitability depends on the required mechanical strength, electrical properties, operating environment, and assembly process.
Conductive circuitry is formed on one side of the substrate. This construction is suitable for circuit layouts that can be completed on a single conductive layer.
FR-1 can be considered when the application does not require the material performance or routing complexity associated with more advanced PCB constructions. Actual cost advantages depend on board dimensions, order quantity, copper specifications, and fabrication requirements.
FR-1 should be evaluated against operating temperature, humidity, electrical loading, mechanical stress, and applicable product safety requirements before being selected for a production design.
FR-1 and FR-4 serve different PCB design requirements. Material selection should be based on the application's operating conditions and manufacturing objectives rather than price alone.
Comparison Factor | FR-1 PCB | FR-4 PCB |
|---|---|---|
Base Material | Paper phenolic laminate | Glass fiber reinforced epoxy laminate |
Circuit Structure | Commonly used for single-sided designs | Available for single-sided, double-sided, and multilayer designs |
Cost Consideration | Often considered for cost-sensitive circuits | Cost depends on material grade and board construction |
Mechanical Requirements | Evaluate for the intended board design and assembly | Often preferred when greater mechanical robustness is required |
Thermal Requirements | Confirm material rating for the application | Confirm the selected FR-4 grade and temperature requirements |
Typical Design Consideration | Relatively simple, compatible circuits | Broader range of circuit complexity and material requirements |
When to consider FR-1: Choose FR-1 for evaluation when the circuit is relatively simple, a single conductive layer is sufficient, and the material meets the required electrical, thermal, mechanical, and safety specifications.
When to consider FR-4: Consider FR-4 when the design requires different layer configurations, greater mechanical robustness, or material properties better suited to the operating environment.
The final selection should be confirmed through design review and the applicable material datasheet.
FR-1 single sided PCBs can be considered for electronic products whose circuit layout and operating conditions are compatible with paper phenolic laminate.
For compatible low-complexity control circuits where a single conductive layer can accommodate the required connections.
For selected control and interface circuits, provided the material meets the appliance's electrical, thermal, and safety requirements.
For compatible sound, lighting, and basic control circuits where the design does not require complex routing or demanding thermal performance.
For relatively simple electronic functions where the operating environment and circuit requirements are suitable for FR-1.
For selected low-complexity circuit projects where the material, component assembly method, and electrical requirements are compatible with the design.
Application suitability must be evaluated for each project. FR-1 should not be assumed suitable for high-frequency circuits, demanding thermal environments, or applications requiring specific safety certifications without supporting technical documentation.
FR-1 is not a universal replacement for FR-4. Reviewing the following factors before production helps reduce material mismatches and fabrication changes.
Confirm that all required connections can be routed on one conductive layer. If the design requires routing on both sides or internal layers, consider a different PCB structure.
Review the material's rated operating temperature and the temperatures encountered during normal operation and soldering. Do not assume all FR-1 grades have the same thermal performance.
Confirm that the selected laminate and packaging are appropriate for the storage environment and expected operating humidity.
Check pad dimensions, component mounting methods, soldering processes, and mechanical loads. Components with greater weight or mechanical stress may require additional design consideration.
Review voltage, current, insulation requirements, and circuit performance against the material specifications and the finished PCB design.
If the finished electronic product requires a particular flame rating, RoHS compliance, or other certification, verify the relevant documentation for the selected material and finished board.
Customization should be based on the approved Gerber files and the actual capabilities available for the selected FR-1 laminate.
Customization Item | Project Requirements |
|---|---|
Board Dimensions | Finished length, width, and board outline |
Board Thickness | Current listing: 1.6 mm; other options subject to confirmation |
Copper Weight | Confirm the required copper weight and available options |
Hole Specifications | Provide drill sizes, hole locations, and tolerances |
Solder Mask | Confirm the required color and available process |
Surface Finish | Confirm compatible options such as HASL or OSP |
Circuit Pattern | Submit the approved copper layout and spacing requirements |
Order Quantity | Prototype, small batch, or volume production quantity |
Not every option is available for every FR-1 board construction. Manufacturing feasibility should be confirmed before quotation.
Electrical and visual inspection requirements should be agreed upon before production.
The current product listing identifies flying needle testing. Confirm the applicable test coverage and acceptance criteria for the order.
Review the finished circuit pattern against the approved design data, including traces, pads, and clearances.
Check board dimensions, outline features, and drilling locations against the approved fabrication requirements.
Inspect the board surface and solderable areas against the agreed appearance and finish specifications.
Confirm the required inspection records, acceptance criteria, packaging, and labeling before shipment.
Specific test methods, coverage, and acceptance limits should be confirmed with the factory rather than assumed for every order.
To evaluate an FR-1 single sided PCB project, provide the following information:
Gerber Files: Include the copper layer, solder mask, silkscreen, and board outline files where applicable.
Board Specifications: Confirm board dimensions, finished thickness, copper weight, hole sizes, and required tolerances.
Material Requirements: Confirm FR-1 material requirements and any applicable safety or environmental documentation.
Order Quantity: State the quantity required for prototyping or production.
Surface Finish and Inspection: Specify the required finish, electrical testing, and inspection criteria.
Delivery Requirements: Provide the target delivery schedule and packaging instructions.
Our team can review the available design information and clarify the applicable manufacturing specifications before quotation.
An FR-1 single sided PCB is a printed circuit board made with paper phenolic laminate and conductive circuitry on one side of the substrate. It is considered for relatively simple electronic designs that can be routed on one conductive layer.
FR-1 uses a paper phenolic reinforcement structure, while FR-4 uses glass fiber reinforced epoxy laminate. Their mechanical, thermal, and electrical properties differ, so the appropriate material depends on the application's requirements.
The current product listing specifies a board thickness of 1.6 mm. Confirm the finished thickness and tolerance with the factory before placing an order.
Suitability depends on the specific laminate grade, soldering process, and operating temperature. Review the material datasheet and confirm the applicable limits before selecting FR-1 for a heat-intensive application.
Board dimensions, copper specifications, drilling requirements, and other fabrication details can be reviewed according to the design files and available manufacturing capabilities.
Options such as HASL and OSP may be considered, subject to the selected material, board construction, and factory capability. Confirm the available finish before production.
Gerber files and applicable drill data are the primary starting point. Include board dimensions, thickness, copper requirements, quantity, and any inspection or compliance requirements.
The current product listing identifies flying needle testing. Confirm test coverage, electrical criteria, and any additional inspection requirements with the factory.
