Prev Problem
Next Problem
Task
Discussion
Submissions
Solution
Report

5. Select a Resistor to Drive an LED

All Submissions
Back To All Submissions
Previous Submission
Next Submission
JesseKrigelman
JesseKrigelman
November 24, 2025
ERJ-PA3J471V
Component
DigiKey Part NoP470BZTR-ND
Mfr Part NoERJ-PA3J471V
ManufacturerPanasonic Electronic Components

RES SMD 470 OHM 5% 1/3W 0603

470 Ohms ±5% 0.333W, 1/3W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film

Powered byDigiKey Logo
EW

Response By EW AI

  • ✅ Resistance: 470 Ω ±5% — Matches the calculated value for 22mA LED current.
  • ✅ Tolerance: ±5% — Meets the '5% or better' requirement for reliable brightness.
  • ✅ Power Rating: 0.333W (1/3W) — Meets the minimum required (0.33W).
    Calculated power dissipation: (10V x 22mA) = 0.22W, so this resistor is safely rated with margin.
  • ✅ Mounting Type: Surface Mount (0603) — Suitable for modern PCB assembly.
  • ✅ Technology: Thick Film — Acceptable and robust for LED current limiting.
  • ✅ RoHS Compliance: RoHS3 Compliant — Environmentally safe.
Summary: All required specifications are met. This resistor is approved for your design.
Was this helpful?
Upvote
Downvote