5. Select a Resistor to Drive an LED

• ✅ Resistance: 470Ω matches calculated requirement for 12V - 2V = 10V across resistor, 10V/22mA ≈ 455Ω (470Ω is the nearest standard value and acceptable within ±5% tolerance).
• ✅ Tolerance: ±5% meets the requirement of ±5% or better.
• ✅ Power Rating: 0.333W (1/3W) exactly meets the minimum required power rating (P = 10V x 0.022A = 0.22W, so 0.333W provides a safe margin).
• ✅ Mounting Type: 1210 package is surface mount as required.
• ✅ Technology: Thick Film, as specified.
• ✅ RoHS Compliance: ROHS3 Compliant.

Conclusion: All key specifications match or exceed the requirements. The selected part KTR25JZPJ471 is approved for use in this LED current-limiting application.