Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.
  • Quote: Email your PCB files to Sales@pcbsync.com (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.

Annular Ring Calculator | PCBSync Engineering Tools

Annular Ring Calculator

PCBSync Engineering Tools

Annular Ring Visualization
Top View
Cross Section
Annular Ring Size Scale
0.125 mm
0 0.05 0.1 0.15 0.2 0.25 mm
Breakout Risk
Marginal
Good
Excellent
Breakout Risk
None
Good margin for manufacturing
Pad/Hole Ratio
1.71:1
Pad diameter / Drill size
Copper Area
0.187 mm²
Ring cross-section area
Tangency
No
Hole within pad boundary
Plating Thickness
25 µm
Typical barrel plating
Min Pad for Class
0.55 mm
Required for IPC Class 2
Requirement
Class 1
Class 2
Class 3
External Annular Ring
0.05 mm
0.05 mm
0.05 mm
Internal Annular Ring
0.00 mm
0.025 mm
0.05 mm
Breakout Allowed
90°
90°
None
Your Design
✓ Pass
✓ Pass
✓ Pass
Design Recommendations
  • Annular ring meets IPC Class 2 requirements
  • Good manufacturing margin - low risk of breakout
  • Pad size appropriate for drill diameter

Annular Ring Calculator © 2024 PCBSync | PCB Design Analysis Tool

Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.

  • Quote: Email your PCB files to Sales@pcbsync.com (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.

Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.