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5. Select a Resistor to Drive an LED

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CRGH1206J470R
Component
DigiKey Part No1712-CRGH1206J470RTR-ND
Mfr Part NoCRGH1206J470R
ManufacturerTE Connectivity Passive Product

RES 470 OHM 5% 1/2W 1206

470 Ohms ±5% 0.5W, 1/2W Chip Resistor 1206 (3216 Metric) Automotive AEC-Q200 Thick Film

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EW

Response By EW AI

  • Resistance: 470Ω (matches calculated value for 22mA with 12V supply and 2V LED drop)
  • Tolerance: ±5% (meets requirement of ±5% or better)
  • Power Rating: 0.5W (exceeds minimum requirement of 0.33W)
        Power dissipated = (12V-2V)×22mA ≈ 220mW, well below the part's rating
  • Mounting Type: Surface Mount (1206 package is standard for SMT)
  • Technology: Thick Film (meets requirement; suitable for general current-limiting)
  • RoHS Compliance: Yes (ROHS3 Compliant)

Result: All critical specifications are met or exceeded for reliable and safe operation in your LED current-limiting application.

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