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5. Select a Resistor to Drive an LED

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13-RC1210FR-07470RLCT-ND
Component
DigiKey Part No13-RC1210FR-07470RLTR-ND
Mfr Part NoRC1210FR-07470RL
ManufacturerYAGEO

RES 470 OHM 1% 1/2W 1210

470 Ohms ±1% 0.5W, 1/2W Chip Resistor 1210 (3225 Metric) Moisture Resistant Thick Film

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EW

Response By EW AI

  • Resistance: 470Ω matches the calculated requirement (470Ω for 22mA at 12V–2V across the resistor).
  • Tolerance: 1% (better than required ±5%).
  • Power Rating: 0.5W (exceeds minimum requirement of 0.33W).
       • Power dissipated: (10V × 0.022A) = 0.22W, so 0.5W gives >2× margin for reliability.
  • Mounting Type: Surface Mount (1210 package) as required.
  • Technology: Thick Film (acceptable per requirements).
  • RoHS Compliance: ROHS3 Compliant.

Conclusion: All required specifications are met or exceeded. This resistor is well-suited for your LED current-limiting application.

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