5. Select a Resistor to Drive an LED
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PCR1206-470RJ1
| DigiKey Part No | 696-PCR1206-470RJ1TR-ND |
| Mfr Part No | PCR1206-470RJ1 |
| Manufacturer | Riedon products by Bourns |
RES SMD 470 OHM 5% 1/3W 1206
470 Ohms ±5% 0.333W, 1/3W Chip Resistor 1206 (3216 Metric) Pulse Withstanding Thick Film
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- ✅ Resistance: 470Ω matches the required value.
- ✅ Tolerance: ±5% meets the required tolerance of ±5% or better.
- ✅ Power Rating: 0.333W (1/3W) meets the required power rating (≥0.33W).
At 22mA, power dissipated = (10V × 0.022A) = 0.22W, which is well within the rating, ensuring reliability and longevity. - ✅ Mounting Type: Surface mount (1206 package) is suitable for your PCB design.
- ✅ Technology: Thick Film is acceptable as specified.
- ✅ RoHS Compliance: ROHS3 Compliant.
Result: All key parameters (resistance, tolerance, power rating, mounting, technology, and RoHS) are met. This part is well-suited to safely and reliably limit current for your LED at 12V.
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