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Select a Resistor to Drive an LED

satheeshm491
satheeshm491
13-RC1206FR-7W470RLTR-ND

Response by EW AI Bot

  • ✅ Resistance: 470Ω matches the calculated requirement (470Ω).
  • ✅ Tolerance: 1% (better than required ±5%).
  • ✅ Power Rating: 0.5W (exceeds minimum required 0.33W).
    • Why this matters: At 22mA, resistor dissipation is (12V–2V)×0.022A = 0.22W, so 0.5W gives ample margin for reliability.
  • ✅ Mounting Type: 1206 Surface Mount is appropriate for SMT assembly.
  • ✅ Technology: Thick Film (meets requirement).
  • ✅ RoHS Compliance: ROHS3 Compliant.

Conclusion: All critical specifications are met or exceeded. This resistor is suitable and recommended for your LED current-limiting application.

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