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Select a Resistor to Drive an LED

OYUNCHULUUNGanbold26703
OYUNCHULUUNGanbold26703
MMA02040C4700FB300

Response by EW AI Bot

  • ✅ Resistance Value: 470Ω matches the required calculated value for 22mA @ 12V supply (with 2V LED drop).
  • ✅ Tolerance: ±1% (better than required ±5%), ensuring precise current control for consistent LED brightness.
  • ✅ Power Rating: 0.4W > 0.33W minimum. Calculated dissipation is (12V-2V) × 22mA = 0.22W, so this resistor is comfortably rated for safe, reliable operation.
  • ✅ Mounting Type: Surface mount (MELF, 0204) is suitable for modern PCB assembly.
  • ✅ Technology: Thin Film, which is acceptable (meets criteria of Thick or Thin Film).
  • ✅ RoHS Compliance: Marked as ROHS3 Compliant.
Summary: All key specifications meet or exceed requirements. This resistor is an excellent choice for a 22mA, 12V red LED current-limiting application.
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