Tolerance Analysis Data Sheet

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Project Date Created / Modified Stack-Up Name Created By Checked By Problem Statement

Quick Results

Net Stack-Up —

Worst-Case Minimum —

Worst-Case Maximum —

RSS Tolerance —

Enter stack-up data to generate a clearance or interference assessment.

RSS Note: At least four active contributors are recommended before using RSS.

Worst-Case Analysis: Nominal = Σ Positive Contributions − Σ Negative Contributions, Total Tolerance = Σ Individual Tolerances

Root Sum Square (RSS): RSS Tolerance = √(Σ Tolerance²)

Decision Rule: Worst-Case Minimum ≥ 0 indicates positive clearance; otherwise it indicates interference risk.

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Stack-Up Input Table

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ID	Component	Positive +	Negative -1	Tolerance +	Tolerance -	RSS	Sigma Level	Feature Standard Deviation
ID	Component	Positive +	Negative -1	Tolerance +	Tolerance -	RSS	Sigma Level	Normal	Best Estimate	Uniform
Σ	Sums	—	—	—	—	—	—	—	—	—
Net	Net	—	—	—	—	—	—	—	—

Auto Conclusion

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Conclusion Summary

Conclusion

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Results

Design Limit(s)

LSL USL

Results	Normal (RSS)	Average of RSS & U	Uniform (U)	Worst Case
Predicted Mean	—	—	—	—
Nominal (Based only on Dimension Column)	—	—	—	—
Std. Dev. (±)	—	—	—	NA
Tolerance (+/-)	—	—	—	—
Range Lower	—	—	—	—
Range Upper	—	—	—	—
Failure Rate (PPM)	—	NA	NA	NA
Failure Rate is based on area under a normal curve. If no value is shown then the rate is zero.

Statement / Assumptions / Notes

Statement Assumptions Notes