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5. Select a Resistor to Drive an LED

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VijayakumarS
VijayakumarS
November 12, 2025
PHP00603E4700BST1-ND
Component
DigiKey Part NoPHP00603E4700BST1-ND
Mfr Part NoPHP00603E4700BST1
ManufacturerVishay Dale Thin Film

RES SMD 470 OHM 0.1% 3/8W 0603

470 Ohms ±0.1% 0.375W, 3/8W Chip Resistor 0603 (1608 Metric) Flame Proof, Moisture Resistant, Safety Thin Film

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EW

Response By EW AI

  • ✅ Resistance: 470Ω matches the calculated requirement exactly.
  • ✅ Tolerance: ±0.1% is much better than the required ±5%.
  • ✅ Power Rating: 0.375W (3/8W) exceeds the minimum required 0.33W.
    (Power dissipated = (12V-2V)^2 / 470Ω ≈ 0.21W, so this is safe.)
  • ✅ Mounting Type: 0603 Surface Mount package is appropriate for SMT assembly.
  • ✅ Technology: Thin Film as required.
  • ✅ RoHS Compliance: ROHS3 Compliant.
Conclusion: All key specifications meet or exceed requirements. This resistor is a suitable and reliable choice for limiting current to a red LED in your 12V indicator circuit.
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