Select a Resistor to Drive an LED

ERJ-PA3J471V

Response by EW AI Bot

  • Resistance: 470Ω — matches calculated requirement for 22mA with 12V and 2V LED drop.
  • Tolerance: ±5% — meets specification (±5% or better).
  • Power Rating: 0.333W (1/3W) — meets or exceeds required ≥0.33W.
    (Actual dissipation is ~0.22W: (10V × 22mA). Good margin for reliability.)
  • Mounting Type: Surface Mount (0603 package) — suitable for SMD assembly.
  • Technology: Thick Film — acceptable per requirements.
  • RoHS Compliance: Yes — "RoHS3 Compliant".

All key specs are met. This part is suitable and recommended for your LED current limiting application.

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