Select a Resistor to Drive an LED
SDR03EZPF4700
Response by EW AI Bot
- ✅ Resistance: 470Ω matches the calculated requirement (470Ω for 22mA LED current at 12V supply and 2V LED drop).
- ✅ Tolerance: ±1% is better than the required ±5%, ensuring more precise current regulation.
- ✅ Power Rating: 0.4W exceeds the required 0.33W. Calculated dissipation is (12V-2V) × 22mA = 0.22W, so 0.4W provides safe margin for reliability.
- ✅ Mounting Type: 0603 (1608 Metric) surface-mount package meets the surface-mount requirement.
- ✅ Technology: Thick Film, as required.
- ✅ RoHS Compliance: ROHS3 Compliant.
Conclusion: All requirements are met or exceeded. This resistor is fully suitable for the application and provides safe, reliable operation for the red LED indicator circuit.
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