5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω – Matches calculated value for 22mA LED current with 12V supply and 2V LED forward drop.
• ✅ Tolerance: ±5% – Meets the requirement of ±5% or better.
• ✅ Power Rating: 0.333W (1/3W) – Meets the minimum required power rating of ≥0.33W.
  Calculated dissipation: (12V-2V)² / 470Ω ≈ 0.213W, so 0.333W provides a safe margin.
• ✅ Mounting Type: 0805 Surface Mount – Satisfies the surface-mount requirement.
• ✅ Technology: Thick Film – Meets requirement for thick or thin film resistor.
• ✅ RoHS Compliance: ROHS3 Compliant – Environmentally suitable.

All key specifications are met. This resistor (TE Connectivity CRGH0805J470R) is well-suited for your LED indicator circuit and will ensure correct operation and long-term reliability.