5. Select a Resistor to Drive an LED

• ✅ Resistance Value: 470Ω matches the required calculated value for 22mA @ 12V supply (with 2V LED drop).
• ✅ Tolerance: ±1% (better than required ±5%), ensuring precise current control for consistent LED brightness.
• ✅ Power Rating: 0.4W > 0.33W minimum. Calculated dissipation is (12V-2V) × 22mA = 0.22W, so this resistor is comfortably rated for safe, reliable operation.
• ✅ Mounting Type: Surface mount (MELF, 0204) is suitable for modern PCB assembly.
• ✅ Technology: Thin Film, which is acceptable (meets criteria of Thick or Thin Film).
• ✅ RoHS Compliance: Marked as ROHS3 Compliant.

Summary: All key specifications meet or exceed requirements. This resistor is an excellent choice for a 22mA, 12V red LED current-limiting application.