5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω — Matches required value for 22mA LED current.
• ✅ Tolerance: ±1% — Better than required ±5%, offering tighter LED current control.
• ✅ Power Rating: 0.5W — Exceeds the ≥0.33W minimum. Calculated dissipation is (12V–2V) × 22mA = 0.22W; this part provides ample margin for reliability.
• ✅ Mounting Type: Surface Mount (1210 package) — Fits the requirement for SMT assembly.
• ✅ Technology: Thick Film — Acceptable for this application.
• ✅ RoHS Compliance: ROHS3 Compliant — Environmentally safe and suitable for global markets.

Summary: All key specifications meet or exceed the requirements. This part is suitable for safely and reliably limiting current to a red LED in a 12V system.