5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω matches the calculated requirement for a 12V to 2V drop at 22mA.
• ✅ Tolerance: ±5% meets the minimum requirement for current control.
• ✅ Power Rating: 0.5W (1/2W) exceeds the required ≥0.33W, providing extra margin for reliability. (Dissipation in this application: (10V * 0.022A ≈ 0.22W) is well within limits.)
• ✅ Mounting Type: 1206 SMD package is suitable for surface mount.
• ✅ Technology: Thick Film, as specified.
• ✅ RoHS Compliance: ROHS3 Compliant.

All key specifications are met or exceeded. This resistor is suitable for limiting current to the red LED in your 12V application.