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5. Select a Resistor to Drive an LED

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HAWKEYEGAMING
HAWKEYEGAMING
August 5, 2025
RPC32471JTP
Component
DigiKey Part No2315-RPC32471JTPTR-ND
Mfr Part NoRPC32471JTP
ManufacturerKamaya Inc.

RES 470 OHM 1/3W 5% 1206

470 Ohms ±5% 0.333W, 1/3W Chip Resistor 1206 (3216 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film

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EW

Response By EW AI

  • ✅ Resistance: 470Ω matches the calculated requirement for a 12V supply, 2V LED forward voltage, and 22mA desired current.
  • ✅ Tolerance: ±5% meets the requirement of ±5% or better.
  • ✅ Power Rating: 0.333W (1/3W) equals the minimum required power rating (≥0.33W). At 22mA, power dissipation is 0.22W, which is safely under the resistor's rating.
  • ✅ Mounting Type: 1206 package is a surface-mount type, as specified.
  • ✅ Technology: Thick Film is acceptable per requirements.
  • ✅ RoHS Compliance: ROHS3 Compliant.
Summary: All specified requirements are met. This resistor is suitable for the design.
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