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.

Via Transition Frequency Calculator - PCBSync Engineering Tools

Via Transition Frequency Calculator

PCBSync Engineering Tools

VIA PARAMETERS
Via Type
Common Via Sizes
Via Geometry
Drill Diameter ? mm
Pad Diameter ? mm
Antipad Diameter ? mm
Via Length ? mm
Board Stack-up
Dielectric Constant (εr)
Plating Thickness µm
Transition Frequency (f₀) 28.5 GHz
Quarter-Wave Resonance 45.8 GHz
Via Inductance (L) 0.82 nH
Via Capacitance (C) 38.5 fF
Characteristic Impedance 146 Ω
10 GHz Performance EXCELLENT
EQUIVALENT CIRCUIT MODEL
L=0.82nH C=38fF R
VIA CROSS-SECTION & ANALYSIS
VIA CROSS-SECTION
ø0.3mm ø0.55mm ø0.9mm
SIDE VIEW
1.6mm L1 L2 L3 L4
Copper Pad
Via Barrel
Substrate (FR4)
Antipad Clearance
FREQUENCY BAND PERFORMANCE
LOW SPEED
< 1 GHz
✓ OK
HIGH SPEED
1-10 GHz
✓ OK
VERY HIGH
10-28 GHz
⚠ CAUTION
mmWAVE
> 28 GHz
✗ AVOID
IMPEDANCE vs FREQUENCY
0Ω 100Ω 200Ω 0 10G 20G 30G 40GHz f₀
Design Recommendations
Via size is appropriate for signals up to 10 GHz
Consider smaller via for 25+ Gbps signals to push resonance higher

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.