Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω — Matches calculated value for 12V - 2V = 10V / 22mA = 454.5Ω (470Ω is the nearest standard and suitable value).
• ✅ Tolerance: ±5% — Meets the requirement (±5% or better).
• ✅ Power Rating: 0.333W (1/3W) — Meets the requirement (≥0.33W).
  • Power dissipation check: (10V * 22mA) = 0.22W, which is well below the resistor's 0.333W rating, providing a good safety margin for reliability.
• ✅ Mounting Type: Surface Mount (0603) — Satisfies surface-mount requirement.
• ✅ Technology: Thick Film — Meets specification (Thick Film or Thin Film acceptable).
• ✅ RoHS Compliance: ROHS3 Compliant — Satisfies lead-free and environmental requirements.

Summary: All required specifications are met. This resistor is a safe and reliable choice for current limiting in your 12V red LED design.