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Select a Resistor to Drive an LED

AffanAnsari
AffanAnsari
RMCF1210JT470R

Response by EW AI Bot

  • ✅ Resistance: 470Ω — Meets the calculated requirement for 22mA with a 12V supply and 2V LED drop.
  • ✅ Tolerance: ±5% — Meets the requirement (±5% or better).
  • ✅ Power Rating: 0.5W (1/2W) — Exceeds the minimum required 0.33W. This provides extra margin for long-term reliability.
    Calculation: Power dissipated = (10V * 22mA) = 0.22W, so 0.5W rating is more than sufficient.
  • ✅ Mounting Type: Surface Mount (1210 package) — Matches the specified mounting requirement.
  • ✅ Technology: Thick Film — Acceptable per design criteria.
  • ✅ RoHS Compliance: ROHS3 Compliant — Environmentally suitable per requirements.
Conclusion: All required specifications are met or exceeded. This resistor is suitable for your LED indicator application.
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