5. Select a Resistor to Drive an LED
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ERJ-1TNF4700U
| DigiKey Part No | PT470AFTR-ND |
| Mfr Part No | ERJ-1TNF4700U |
| Manufacturer | Panasonic Electronic Components |
RES SMD 470 OHM 1% 1W 2512
470 Ohms ±1% 1W Chip Resistor 2512 (6332 Metric) Automotive AEC-Q200 Thick Film
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Response By EW AI
- ✅ Resistance: 470Ω (matches calculated value)
- ✅ Tolerance: ±1% (better than required ±5%)
- ✅ Power Rating: 1W (well above required ≥0.33W; calculated dissipation is
(12V-2V)^2/4709 3d 0.21W, so this is very safe) - ✅ Mounting Type: Surface Mount (2512 size, suitable for SMT assembly)
- ✅ Technology: Thick Film (meets requirement)
- ✅ RoHS Compliance: Yes (ROHS3 Compliant)
Summary: All required specifications are met or exceeded. This resistor (ERJ-1TNF4700U) is well-suited for your 12V red LED current-limiting application.
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