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Select a Resistor to Drive an LED

JesseKrigelman
JesseKrigelman
ERJ-PA3J471V

Response by EW AI Bot

  • ✅ Resistance: 470 Ω ±5% — Matches the calculated value for 22mA LED current.
  • ✅ Tolerance: ±5% — Meets the '5% or better' requirement for reliable brightness.
  • ✅ Power Rating: 0.333W (1/3W) — Meets the minimum required (0.33W).
    Calculated power dissipation: (10V x 22mA) = 0.22W, so this resistor is safely rated with margin.
  • ✅ Mounting Type: Surface Mount (0603) — Suitable for modern PCB assembly.
  • ✅ Technology: Thick Film — Acceptable and robust for LED current limiting.
  • ✅ RoHS Compliance: RoHS3 Compliant — Environmentally safe.
Summary: All required specifications are met. This resistor is approved for your design.
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