PCBCart has been implementing circuit boards fabrication procedures stringently conforming to IPC-compliant guidelines and regulations in order to ensure their highest reliability and best performance in our clients' projects. Therefore, we have to cater to tight tolerances in PCB manufacturing process.
Specific tolerances for each detail of PCB printing are listed in the following tables.
| Via Type | Via Diameter | Tolerance |
|---|---|---|
|
PTH (Plated Thru-hole) |
≤0.8mm | ±0.08mm |
| >0.8mm, <2.5mm | ±0.1mm | |
| >2.5mm, ≤6.3mm | ±0.15mm | |
| >6.3mm | ±0.2mm | |
|
NPTH (Non-plated Thru-hole) |
≤0.8mm, >0.8mm, ≤6.3mm | ±0.05mm |
| >6.3mm | ±0.2mm | |
| Paper based PCB | ≤0.8mm | ±0.1mm |
| >0.8mm | ±0.2mm | |
| PTH slots | <10.0mm | ±0.2mm |
| ≥10.0mm | ±0.3mm | |
| NPTH slots | <10.0mm | ±0.15mm |
| ≥10.0mm | ±0.2mm |
| Dimension | Range | Tolerance |
|---|---|---|
|
Board thickness (finished) |
≤1.0mm | ±0.10mm |
| ≤1.6mm, >1.0mm | ±0.14mm | |
| ≤2.0mm, >1.6mm | ±0.18mm | |
| ≤2.4mm, >2.0mm | ±0.22mm | |
| ≤3.0mm, >2.4mm | ±0.25mm | |
| >3.0mm | ±10% | |
| Lamination thickness | / | ±8% |
| Board size (finished) | / | ±0.1mm-±0.3mm |
| Item | Specific Aspect | Tolerance |
|---|---|---|
|
Hole location tolerances |
Drilling | ±0.18mm |
| Milling | ±0.15mm | |
| V-cut | V-cut remain thickness | ±0.1mm |
| Bevelling | Bevelling angle | ±5° |
| Edge milling | Ordinary parts | ±0.13mm-±0.4mm |
| Internal slot | ±0.20mm | |
| Card slot | ±0.15mm | |
|
Countersink counterbore |
Depth | ±0.20mm |
| Angle | ±5° |
Note: Tolerances listed in tables below belong to standard category, they don't remain unchanged or fixed forever. PCBCart can meet tighter tolerances due to higher requirements on your custom PCB projects. Just tell us your special requirements here, we'll provide a practical solution very quickly.
Need PCBs with specific tolerance? Reach PCBCart for practical pcb manufacturing solution. In the meanwhile, you may click below button to get a rough price on your PCB fabrication.
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Helpful Resources
• Full Feature PCB Manufacturing Service from PCBCart
• Aluminum Backed PCBs: The Solution to High Power and Tight Tolerance Applications
• Pre-order File Checklist for Efficient PCB Manufacturing
• PCB Design Tips to Better Take Advantage of PCBCart's Capabilities And Save Cost
• Step-by-step Instruction On Getting Bare Board PCB Price Within Seconds
