PWR-25 — Common 12V / 5V rail current protection
draft · Power
Statement
Common 12V and 5V rails (present on all IDC connectors, pins 1 and 2) shall be protected by Polymeric PTC Resettable Fuses with documented per-pin and total current limits
Acceptance Criteria
Per-pin Ilim 0.25 A (auto-resets via PTC); total Itot ≤ 1.5 A on each rail. Per Sparrow Hardware Datasheet v3 §5.2 page 32 and §6.1 (sourceRef: 01_ProductSpec/Sparrow Hardware Datasheet-v3-20260504_150735.pdf)
Sign-offs
No sign-offs recorded. Approving a requirement records one here.