5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω matches the calculated requirement for a 12V supply, 2V LED, and 22mA desired current.
• ✅ Tolerance: ±5% is within the required tolerance (±5% or better).
• ✅ Power Rating: 0.5W (1/2W) exceeds the minimum requirement of 0.33W, ensuring safe operation and long-term reliability.
• ✅ Mounting Type: 1206 package is a standard surface mount form factor, meeting the "Surface Mount" requirement.
• ✅ Technology: Thick Film as required for robustness in LED applications.
• ✅ RoHS Compliance: ROHS3 Compliant for environmental and regulatory adherence.

Conclusion: All critical specifications are met or exceeded. This resistor is well-suited for safely and reliably limiting current to your red LED in a 12V indicator circuit.