5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω (meets calculated requirement for 22mA LED current at 12V supply, 2V LED drop)
• ✅ Tolerance: ±1% (better than required ±5%)
• ✅ Power Rating: 0.5W (exceeds 0.33W minimum; actual dissipation is ~0.22W, giving good margin)
• ✅ Mounting Type: Surface Mount (2010 package) (meets SMT requirement)
• ✅ Technology: Thin Film (acceptable, as specified: Thin or Thick Film)
• ✅ RoHS Compliance: ROHS3 Compliant (fully compliant)

Conclusion:
RT2010FKE07470RL is an excellent choice for this application. All key requirements are met or exceeded. You have ample power margin, precise tolerance, surface mount compatibility, and RoHS safety.
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