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5. Select a Resistor to Drive an LED

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P470ADTR-ND
Component
DigiKey Part NoP470ADTR-ND
Mfr Part NoERJ-P06J471V
ManufacturerPanasonic Electronic Components

RES SMD 470 OHM 5% 1/2W 0805

470 Ohms ±5% 0.5W, 1/2W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film

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EW

Response By EW AI

  • Resistance: 470Ω (matches calculated requirement for 22mA with a 12V→2V drop)
  • Tolerance: ±5% (meets the requirement of ±5% or better)
  • Power Rating: 0.5W (exceeds the minimum requirement of 0.33W; actual dissipation: (10V×0.022A)=0.22W, so this is safe with margin)
  • Mounting Type: 0805 Surface Mount (matches the requirement)
  • Technology: Thick Film (acceptable per requirements)
  • RoHS Compliance: ROHS3 Compliant (meets environmental requirement)

All critical specifications are satisfied for safe, reliable LED operation. Good choice!

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