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Select a Resistor to Drive an LED

AvdheshRawat
AvdheshRawat
KTR25JZPJ471

Response by EW AI Bot

  • ✅ 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.

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