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IPC-A-610 Class 2 vs Class 3 Selector
IPC-A-610 Class 2 vs Class 3 Selector
Pick the lowest class that meets your reliability need — over-specifying Class 3 adds cost without value.
→ Build to IPC-A-610 Class 2
Your application needs dependable, long service life where a rare failure is recoverable — Class 2 balances reliability against cost, the right fit for most commercial and industrial electronics.
| Criterion | Class 2 | Class 3 |
|---|---|---|
| PTH barrel fill | 50% min | 75% min |
| Copper voids | 1 in ≤5% holes | none |
| Annular ring | ≤90° breakout | no breakout |
| Inspection | sampling + AOI | 100% + X-ray |
PCBark builds to IPC-A-610 Class 2 under ISO 9001, with J-STD-001 soldering and full inspection records that travel with your boards.
Request a quote at IPC Class 2 →
