5. Select a Resistor to Drive an LED
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ERJ-PA3F4700V
| DigiKey Part No | P470BYTR-ND |
| Mfr Part No | ERJ-PA3F4700V |
| Manufacturer | Panasonic Electronic Components |
RES SMD 470 OHM 1% 1/3W 0603
470 Ohms ±1% 0.333W, 1/3W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film
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- ✅ Resistance: 470Ω (matches calculated requirement for 22mA at 12V–2V drop across LED)
- ✅ Tolerance: ±1% (better than required ±5%)
- ✅ Power Rating: 0.333W (meets the ≥0.33W requirement; calculated dissipation is 0.22W, so this is sufficient)
- ✅ Mounting Type: Surface Mount (0603 package, matches requirement)
- ✅ Technology: Thick Film (meets requirement for Thick Film or Thin Film)
- ✅ RoHS Compliance: Yes (ROHS3 Compliant)
Summary: All key specifications are met or exceeded. This resistor (Panasonic ERJ-PA3F4700V) is suitable and reliable for your LED current-limiting application.
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