Select a Resistor to Drive an LED

CRGH0805J470R

Response by EW AI Bot

  • Resistance: 470Ω (470 Ohms ±5%) matches the calculated value for limiting 22mA at 12V - 2V (LED VF).
  • Tolerance: ±5% meets the requirement for current accuracy and brightness consistency.
  • Power Rating: 0.333W (1/3W) equals the minimum required.
    Calculated power dissipation: P = I^2 * R = (0.022)^2 * 470 ≈ 0.227W (well below 0.333W).
  • Mounting Type: 0805 chip is a standard surface-mount package, suitable for modern PCB assembly.
  • Technology: Thick Film, as specified.
  • RoHS Compliance: Marked as ROHS3 Compliant.

Conclusion: All required specifications are met.
This resistor is approved for use in your 12V red LED indicator application.

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