5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω (matches required 470Ω ±5%)
• ✅ Tolerance: ±1% (better than required ±5%)
• ✅ Power Rating: 2W (exceeds required ≥0.33W—excellent margin for reliability)
• ✅ Mounting Type: Surface Mount (2512 package—suitable for SMT assembly)
• ✅ Technology: Thick Film (matches requirement)
• ✅ RoHS Compliance: ROHS3 Compliant (meets environmental spec)

All major requirements are met or exceeded. The resistor's 2W power rating offers a large safety margin versus the calculated dissipation (~0.22W), which is excellent for long-term reliability. Tighter tolerance (±1%) helps ensure consistent LED current. Surface mount format (2512) is appropriate for modern PCB assembly.