Welcome to your Engineering Hub
Select a calculator from the sidebar or click a feature card below to begin. This workspace is designed to provide quick, reliable, and standardized calculations for your daily design needs.
Available Tools:
IPC Through-Hole Pad & Hole Calculator
Calculates required hole and pad sizes based on component pin size.
The ring of copper between the edge of the drilled hole and the outer edge of the pad. It is critical for ensuring reliable through-hole plating, preventing drill breakout, and providing mechanical strength for soldering.
| IPC Level | Density Level | Finished Hole Size | Pad Diameter |
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Datasheet Hole to Pad Size
Calculates required pad (land) size from a known, datasheet-recommended hole or slot size.
When a manufacturer's datasheet specifies a Finished Hole Size instead of the raw lead dimensions, you must factor in fabrication allowances to calculate the pad. This calculator reverses the standard IPC formulas, ensuring that manufacturing drift (drill wander) won't cause "drill breakout" and compromise your annular ring.
| IPC Level | Density Level | Final Pad Size |
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IPC-7351 Pad Corner Radius
Calculates the optimal rounded corner radius for rectangular SMD pads.
Rounded pads improve solder paste release from the stencil, reduce oxidation buildup in sharp corners, and minimize tombstoning risks during reflow. The IPC rule is 25% of the pad's narrowest dimension, capped at a maximum of 0.25mm (10 mils).
| Parameter | Calculated Value |
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IPC-7351 Courtyard Calculator
Calculates the required manufacturing courtyard boundary around a component.
The Courtyard is the absolute minimum protective perimeter required around a component. It guarantees enough physical clearance for pick-and-place machine nozzles, manual rework tools (like soldering irons), and automated optical inspection (AOI) cameras without colliding with adjacent parts.
| IPC Level | Density Level | Final Rounded Courtyard Size |
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Universal IPC Name Generator
Generates standardized IPC footprint names based on metric component dimensions. Supports both IPC-7351 (SMD) and IPC-7251 (Through-Hole).
Standardized IPC naming is crucial for robust BOM management and ECAD/MCAD alignment. By formatting names strictly based on physical geometry (e.g., Pitch, Length, Width, Height) rather than manufacturer part numbers, you prevent library duplication and ensure absolute clarity for fabrication and assembly houses.
| IPC Level | Density Level | Generated IPC Footprint Name |
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Stencil Area Ratio BETA
Calculates solder paste release viability from standard stencils (IPC-7525 DFM check).
It is the mathematical ratio between the aperture opening area (where paste touches the PCB) and the internal aperture wall area (where paste touches the stencil). IPC-7525 dictates this ratio must be greater than 0.66. If it falls below this limit, friction causes the solder paste to get stuck inside the stencil instead of releasing cleanly onto your pad.
| Specification | Output |
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