5. Select a Resistor to Drive an LED
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13-RC1210FR-07470RLCT-ND
| DigiKey Part No | 13-RC1210FR-07470RLTR-ND |
| Mfr Part No | RC1210FR-07470RL |
| Manufacturer | YAGEO |
RES 470 OHM 1% 1/2W 1210
470 Ohms ±1% 0.5W, 1/2W Chip Resistor 1210 (3225 Metric) Moisture Resistant Thick Film
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- ✅ Resistance: 470Ω matches the calculated value (470Ω ±5%) for 22mA through a 2V LED on 12V supply.
- ✅ Tolerance: 1% (better than required ±5%).
- ✅ Power Rating: 0.5W (above the minimum required 0.33W). Calculated dissipation is (10V × 22mA) = 0.22W, which is well within the rating.
- ✅ Mounting Type: 1210 package is surface-mount, as required.
- ✅ Technology: Thick film construction is acceptable.
- ✅ RoHS Compliance: ROHS3 Compliant.
Result: All specifications are met or exceeded. This resistor is suitable for your LED current-limiting application and will ensure brightness, reliability, and safe operation.
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